Note 13 - Capital and Other Components of Equity (Details Textual) $ / shares in Units, $ / shares in Units, $ in Thousands, $ in Thousands |
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3 Months Ended |
12 Months Ended |
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Feb. 14, 2019
USD ($)
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Oct. 23, 2018
USD ($)
shares
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Oct. 23, 2018
CAD ($)
$ / shares
shares
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Oct. 09, 2018
USD ($)
$ / shares
shares
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Oct. 09, 2018
CAD ($)
shares
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May 14, 2018
USD ($)
shares
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May 14, 2018
CAD ($)
$ / shares
shares
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May 09, 2018
USD ($)
$ / shares
shares
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May 09, 2018
CAD ($)
shares
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Dec. 27, 2017
USD ($)
$ / shares
shares
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Feb. 21, 2017
USD ($)
shares
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Feb. 21, 2017
CAD ($)
$ / shares
shares
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Mar. 31, 2020
USD ($)
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Mar. 31, 2019
USD ($)
shares
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Mar. 31, 2020
USD ($)
$ / shares
shares
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Mar. 31, 2020
CAD ($)
$ / shares
shares
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Mar. 31, 2019
USD ($)
shares
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Mar. 31, 2019
CAD ($)
$ / shares
shares
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Mar. 31, 2020
USD ($)
$ / shares
shares
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May 09, 2018
CAD ($)
$ / shares
shares
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Apr. 01, 2018
USD ($)
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Dec. 27, 2017
CAD ($)
shares
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Feb. 21, 2017
$ / shares
shares
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At-the-market Sales Agreement, Common Stock, Maximum Amount | $ |
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$ 30,000
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At-the-market Sales Agreement, Term (Year) |
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3 years
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Class of Warrant or Right, Outstanding (in shares) |
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3,999,689
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3,999,689
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2,206,031
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Warrants and Rights Outstanding | $ |
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$ 1,459
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$ 1,459
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$ 881
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Transaction Costs Related to Derivative Warrant Liability | $ |
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$ 1,075
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4,960
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Additional Paid in Capital, Ending Balance | $ |
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8,150
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$ 8,150
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$ 9,797
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Repayments of Convertible Debt |
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$ 1,556
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$ 2,000
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Stock Issued During Period, Shares, Warrant Excercises (in shares) |
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775,855
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775,855
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Class of Warrant or Right, Exercised During Period (in shares) |
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6,926,061
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6,926,061
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Proceeds from Warrant Exercises | $ |
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7,706
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$ 796
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$ 7,706
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Accounting Standards Update 2018-07 [Member] |
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Additional Paid in Capital, Ending Balance | $ |
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$ 65
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Derivative Liability, Total | $ |
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$ (65)
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Other Income (Expenses) [Member] |
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Transaction Costs Related to Derivative Warrant Liability |
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$ 500
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$ 700
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Warrants Issued in May 2018 [Member] |
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Class of Warrant or Right, Outstanding (in shares) |
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9,530,000
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10,188,100
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[1] |
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10,188,100
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[1] |
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6,593,750
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[1] |
9,530,000
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Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |
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1
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1
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1
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Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares |
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$ 1.31
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$ 1.31
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Warrants and Rights Outstanding |
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$ 3,300
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$ 6,178
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[1] |
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$ 6,178
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[1] |
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$ 1,146
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[1] |
$ 4,300
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Class of Warrant or Right, Weighted Average Fair Value Per Share (in dollars per share) | (per share) |
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$ 0.30
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$ 0.39
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Class of Warrant or Right, Exercised During Period (in shares) |
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771,400
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771,400
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Class of Warrant or Right, Exercised During Period, Exercise Price (in CAD per share) | $ / shares |
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$ 1.31
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Proceeds from Warrant Exercises |
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$ 780
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$ 4,455,000
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Over-Allotment Option Warrants Issued in May 2018 [Member] |
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Class of Warrant or Right, Outstanding (in shares) |
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1,429,500
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Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |
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1
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Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares |
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$ 1.31
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Class of Warrant or Right, Exercised During Period (in shares) |
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3,594,350
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3,594,350
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Proceeds from Warrant Exercises | $ |
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$ 3,567
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Broker Warrants Issued May 2018 [Member] |
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Class of Warrant or Right, Outstanding (in shares) |
[2] |
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547,975
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547,975
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222,976
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Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |
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1
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1
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1
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Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares |
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$ 1.05
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$ 1.05
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Warrants and Rights Outstanding |
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$ 220
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$ 219
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[2] |
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$ 219
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[2] |
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$ 89
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[2] |
$ 283
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Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
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547,975
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547,975
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Class of Warrant or Right, Exercised During Period (in shares) |
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325,000
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325,000
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Proceeds from Warrant Exercises | $ |
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$ 257
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Warrants Issued December 27, 2017 [Member] |
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Class of Warrant or Right, Outstanding (in shares) |
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8,910,891
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9,801,861
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[3] |
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9,801,861
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[3] |
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7,072,962
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[3] |
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8,910,891
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Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |
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1
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1
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1
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Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares |
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$ 1.26
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Warrants and Rights Outstanding | $ |
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$ 4,700
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$ 6,005
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[3] |
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$ 6,005
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[3] |
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$ 1,247
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[3] |
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Class of Warrant or Right, Weighted Average Fair Value Per Share (in dollars per share) | $ / shares |
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$ 0.47
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Class of Warrant or Right, Exercised During Period (in shares) |
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52,288
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52,288
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1,074
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1,074
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Stock Issued During Period, Shares, Warrant Excercises (in shares) |
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136,013
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136,013
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772,474
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772,474
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Class of Warrant or Right, Exercised During Period (in shares) |
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2,676,611
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2,676,611
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Proceeds from Warrant Exercises | $ |
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$ 3,373
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Over-Allotment Option Warrants Issued December 2017 [Member] |
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Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares |
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$ 1.26
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Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
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892,044
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892,044
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Broker Warrants Issued December 2017 [Member] |
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Class of Warrant or Right, Outstanding (in shares) |
[4] |
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495,050
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495,050
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259,121
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Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |
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1
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1
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1
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Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares |
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$ 1.2625
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$ 1.2625
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Warrants and Rights Outstanding |
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$ 321
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$ 308
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[4] |
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$ 308
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[4] |
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$ 161
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[4] |
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$ 406
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Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
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495,050
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495,050
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Class of Warrant or Right, Exercised During Period (in shares) |
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235,929
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235,929
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Warrants Issued in Connection with Public Offering February 2017 [Member] |
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Class of Warrant or Right, Outstanding (in shares) |
[5] |
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1,904,034
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1,904,034
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1,723,934
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Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |
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1
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1
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1
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Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | (per share) |
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$ 2.15
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$ 2.15
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Warrants and Rights Outstanding | $ |
[5] |
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$ 697
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$ 697
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$ 631
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Class of Warrant or Right, Exercised During Period (in shares) |
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180,100
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180,100
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Proceeds from Warrant Exercises | $ |
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$ 292
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|
Broker Warrants Issued February 2017 [Member] |
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Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares |
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$ 2.15
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Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
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234,992
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234,992
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Adjustments to Additional Paid in Capital, Warrant Issued |
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|
|
$ 110
|
$ 144
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Warrants Issued in Connection with Public Offering and Broker Warrants [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Class of Warrants or Rights, Acceleration Right, Minimum Expiration Period (Day) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
30 days
|
30 days
|
|
|
|
|
|
|
|
|
|
Class of Warrants or Rights, Acceleration Right, Period After Issuance (Month) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
120 days
|
120 days
|
|
|
|
|
|
|
|
|
|
Class of Warrants or Rights, Acceleration Right, Minimum Average Share Price, 20 Consecutive Trading Days (in dollars per share) | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 2.65
|
|
|
|
|
|
|
|
|
|
|
Warrants Issued in Connection with Private Placement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Class of Warrant or Right, Outstanding (in shares) |
[6] |
|
|
|
|
|
|
|
|
|
|
|
|
|
1,052,630
|
|
|
|
1,052,630
|
|
|
|
|
|
|
|
|
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
|
$ 1.90
|
|
|
|
|
$ 1.90
|
|
|
|
|
|
|
|
|
|
Warrants and Rights Outstanding | $ |
[6] |
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 235
|
|
|
|
$ 235
|
|
|
|
|
|
|
|
|
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
1,052,630
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1,052,630
|
Class of Warrant or Right, Exercised During Period (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
150,000
|
150,000
|
|
|
|
|
|
|
|
|
|
Proceeds from Warrant Exercises | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 217
|
|
|
|
|
|
|
|
|
|
|
At-the-market Offering [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock Issued During Period, Shares, New Issues (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4,065,986
|
4,065,986
|
0
|
|
0
|
|
|
|
|
|
|
Proceeds from Issuance of Common Stock | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
6,981
|
|
|
$ 7,000
|
|
|
|
|
|
|
|
|
|
|
Payments of Stock Issuance Costs | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 291
|
|
|
|
|
|
|
|
|
|
|
Sale of Stock, Average Price Per Share (in dollars per share) | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 1.79
|
|
|
|
|
|
|
|
|
|
|
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 40
|
|
|
|
|
|
|
|
|
|
|
Stock Issued During Period, Value, New Issues | $ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 6,941
|
|
|
|
|
|
|
|
|
|
|
Public Offering [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock Issued During Period, Shares, New Issues (in shares) |
|
|
18,750,000
|
18,750,000
|
16,600,000
|
16,600,000
|
|
|
9,530,000
|
9,530,000
|
9,900,990
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Proceeds from Issuance of Common Stock |
|
|
$ 19,400
|
$ 25,400
|
$ 17,400
|
$ 22,600
|
|
|
$ 4,800
|
$ 6,200
|
|
|
|
|
$ 44,892
|
|
|
|
|
|
|
|
|
|
|
|
|
Payments of Stock Issuance Costs |
|
|
|
|
|
|
|
|
$ 1,400
|
$ 1,800
|
$ 2,000
|
$ 906
|
$ 1,190
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Sale of Stock, Price Per Share (in dollars per share) | (per share) |
|
|
|
$ 1.28
|
$ 1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock Issued During Period, Value, New Issues |
|
|
$ 21,100
|
$ 27,600
|
$ 19,100
|
$ 24,700
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 41,830
|
|
|
|
|
|
|
|
|
Number of Units Issued During Period (in shares) |
|
|
|
|
|
|
|
|
9,530,000
|
9,530,000
|
9,900,990
|
3,930,518
|
3,930,518
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Price Per Unit Issued (in CAD per share) | (per share) |
|
|
|
|
|
|
|
|
|
|
$ 1.01
|
|
$ 1.45
|
|
|
|
|
|
|
|
|
|
|
$ 1.05
|
|
|
|
Proceeds from Issuance or Sale of Equity, Total |
|
|
|
|
|
|
|
|
$ 7,800
|
$ 10,000
|
$ 10,000
|
$ 4,337
|
$ 5,699
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Deferred Stock Issuance Costs |
|
|
|
|
|
|
|
|
$ 900
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 1,100
|
|
|
|
Class A Common Stock Per Unit or Warrant Per Unit (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
0.5
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.5
|
Over-Allotment Option [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock Issued During Period, Shares, New Issues (in shares) |
|
|
2,812,500
|
2,812,500
|
2,490,000
|
2,490,000
|
1,429,500
|
1,429,500
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Number of Units Issued During Period (in shares) |
|
|
|
|
|
|
1,429,500
|
1,429,500
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Price Per Unit Issued (in CAD per share) | $ / shares |
|
|
|
|
|
|
|
$ 1.05
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Proceeds from Issuance or Sale of Equity, Total |
|
|
|
|
|
|
$ 1,100
|
$ 1,500
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Public Offering and Over-Allotment Option [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock Issued During Period, Shares, New Issues (in shares) |
|
|
21,562,500
|
21,562,500
|
19,090,000
|
19,090,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Minimum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
At-the-market Sales Agreement, Underwriter Fees, Percentage of Sales |
|
3.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Maximum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
At-the-market Sales Agreement, Underwriter Fees, Percentage of Sales |
|
4.00%
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Class A [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Votes Per Share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
Common Class A [Member] | Public Offering [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock Per Unit (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
1
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1
|
Common Class B [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Votes Per Share |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
10
|
|
|
|
|
|
Common Stock, Dividend Rate, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5.00%
|
5.00%
|
|
|
|
|
|
|
|
|
|
Common Stock, Conversion Rate into Class A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1
|
1
|
|
|
|
|
|
|
|
|
|
Common Stock, Redemption Price Per Share (in dollars per share) | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 0.80
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Shares, Issued, Total (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
Common Stock, Shares, Outstanding, Ending Balance (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
Common Class C [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Dividend Rate, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
5.00%
|
5.00%
|
|
|
|
|
|
|
|
|
|
Common Stock, Conversion Rate into Class A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1
|
1
|
|
|
|
|
|
|
|
|
|
Common Stock, Redemption Price Per Share (in dollars per share) | $ / shares |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 0.20
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Shares, Issued, Total (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
Common Stock, Shares, Outstanding, Ending Balance (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
Common Class D and Common Class E [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Conversion Rate into Class A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1
|
1
|
|
|
|
|
|
|
|
|
|
Common Stock, Shares, Issued, Total (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
Common Stock, Shares, Outstanding, Ending Balance (in shares) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
Common Class D and Common Class E [Member] | Minimum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Dividend Rate, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.50%
|
0.50%
|
|
|
|
|
|
|
|
|
|
Common Class D and Common Class E [Member] | Maximum [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Common Stock, Dividend Rate, Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2.00%
|
2.00%
|
|
|
|
|
|
|
|
|
|
|
|