Annual report pursuant to Section 13 and 15(d)

Note 13 - Capital and Other Components of Equity (Details Textual)

v3.20.2
Note 13 - Capital and Other Components of Equity (Details Textual)
$ / shares in Units, $ / shares in Units, $ in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Feb. 14, 2019
USD ($)
Oct. 23, 2018
USD ($)
shares
Oct. 23, 2018
CAD ($)
$ / shares
shares
Oct. 09, 2018
USD ($)
$ / shares
shares
Oct. 09, 2018
CAD ($)
shares
May 14, 2018
USD ($)
shares
May 14, 2018
CAD ($)
$ / shares
shares
May 09, 2018
USD ($)
$ / shares
shares
May 09, 2018
CAD ($)
shares
Dec. 27, 2017
USD ($)
$ / shares
shares
Feb. 21, 2017
USD ($)
shares
Feb. 21, 2017
CAD ($)
$ / shares
shares
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
shares
Mar. 31, 2020
USD ($)
$ / shares
shares
Mar. 31, 2020
CAD ($)
$ / shares
shares
Mar. 31, 2019
USD ($)
shares
Mar. 31, 2019
CAD ($)
$ / shares
shares
Mar. 31, 2020
USD ($)
$ / shares
shares
May 09, 2018
CAD ($)
$ / shares
shares
Apr. 01, 2018
USD ($)
Dec. 27, 2017
CAD ($)
shares
Feb. 21, 2017
$ / shares
shares
At-the-market Sales Agreement, Common Stock, Maximum Amount | $ $ 30,000                                            
At-the-market Sales Agreement, Term (Year) 3 years                                            
Class of Warrant or Right, Outstanding (in shares)                           3,999,689     3,999,689   2,206,031        
Warrants and Rights Outstanding | $                           $ 1,459     $ 1,459   $ 881        
Transaction Costs Related to Derivative Warrant Liability | $                             $ 1,075   4,960            
Additional Paid in Capital, Ending Balance | $                           8,150     $ 8,150   $ 9,797        
Repayments of Convertible Debt                         $ 1,556   $ 2,000              
Stock Issued During Period, Shares, Warrant Excercises (in shares)                                 775,855 775,855          
Class of Warrant or Right, Exercised During Period (in shares)                             6,926,061 6,926,061              
Proceeds from Warrant Exercises | $                         7,706 $ 796 $ 7,706                
Accounting Standards Update 2018-07 [Member]                                              
Additional Paid in Capital, Ending Balance | $                                         $ 65    
Derivative Liability, Total | $                                         $ (65)    
Other Income (Expenses) [Member]                                              
Transaction Costs Related to Derivative Warrant Liability               $ 500 $ 700                            
Warrants Issued in May 2018 [Member]                                              
Class of Warrant or Right, Outstanding (in shares)               9,530,000           10,188,100 [1]     10,188,100 [1]   6,593,750 [1] 9,530,000      
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)               1                     1 1      
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares                               $ 1.31       $ 1.31      
Warrants and Rights Outstanding               $ 3,300           $ 6,178 [1]     $ 6,178 [1]   $ 1,146 [1] $ 4,300      
Class of Warrant or Right, Weighted Average Fair Value Per Share (in dollars per share) | (per share)               $ 0.30                       $ 0.39      
Class of Warrant or Right, Exercised During Period (in shares)                                 771,400 771,400          
Class of Warrant or Right, Exercised During Period, Exercise Price (in CAD per share) | $ / shares                                   $ 1.31          
Proceeds from Warrant Exercises                                 $ 780 $ 4,455,000          
Over-Allotment Option Warrants Issued in May 2018 [Member]                                              
Class of Warrant or Right, Outstanding (in shares)             1,429,500                                
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             $ 1.31                                
Class of Warrant or Right, Exercised During Period (in shares)                             3,594,350 3,594,350              
Proceeds from Warrant Exercises | $                             $ 3,567                
Broker Warrants Issued May 2018 [Member]                                              
Class of Warrant or Right, Outstanding (in shares) [2]                           547,975     547,975   222,976        
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)               1                     1 1      
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares                               $ 1.05       $ 1.05      
Warrants and Rights Outstanding               $ 220           $ 219 [2]     $ 219 [2]   $ 89 [2] $ 283      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)               547,975                       547,975      
Class of Warrant or Right, Exercised During Period (in shares)                             325,000 325,000              
Proceeds from Warrant Exercises | $                             $ 257                
Warrants Issued December 27, 2017 [Member]                                              
Class of Warrant or Right, Outstanding (in shares)                   8,910,891       9,801,861 [3]     9,801,861 [3]   7,072,962 [3]     8,910,891  
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)                   1                 1     1  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares                                     $ 1.26        
Warrants and Rights Outstanding | $                   $ 4,700       $ 6,005 [3]     $ 6,005 [3]   $ 1,247 [3]        
Class of Warrant or Right, Weighted Average Fair Value Per Share (in dollars per share) | $ / shares                   $ 0.47                          
Class of Warrant or Right, Exercised During Period (in shares)                             52,288 52,288 1,074 1,074          
Stock Issued During Period, Shares, Warrant Excercises (in shares)                             136,013 136,013 772,474 772,474          
Class of Warrant or Right, Exercised During Period (in shares)                             2,676,611 2,676,611              
Proceeds from Warrant Exercises | $                             $ 3,373                
Over-Allotment Option Warrants Issued December 2017 [Member]                                              
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares                   $ 1.26                          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)                   892,044                       892,044  
Broker Warrants Issued December 2017 [Member]                                              
Class of Warrant or Right, Outstanding (in shares) [4]                           495,050     495,050   259,121        
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)                   1                 1     1  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares                   $ 1.2625                 $ 1.2625        
Warrants and Rights Outstanding                   $ 321       $ 308 [4]     $ 308 [4]   $ 161 [4]     $ 406  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)                   495,050                       495,050  
Class of Warrant or Right, Exercised During Period (in shares)                             235,929 235,929              
Warrants Issued in Connection with Public Offering February 2017 [Member]                                              
Class of Warrant or Right, Outstanding (in shares) [5]                           1,904,034     1,904,034   1,723,934        
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)                       1             1       1
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | (per share)                               $ 2.15             $ 2.15
Warrants and Rights Outstanding | $ [5]                           $ 697     $ 697   $ 631        
Class of Warrant or Right, Exercised During Period (in shares)                             180,100 180,100              
Proceeds from Warrant Exercises | $                             $ 292                
Broker Warrants Issued February 2017 [Member]                                              
Class of Warrant or Right, Exercise Price of Warrants or Rights (in CAD per share) | $ / shares                       $ 2.15                      
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)                       234,992                     234,992
Adjustments to Additional Paid in Capital, Warrant Issued                     $ 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%              
[1] Warrant to acquire one Common Share at an exercise price of CAD $1.31, expiring on May 9, 2023.
[2] Warrant to acquire one Common Share of the Corporation at an exercise price of CAD $1.05, expiring on May 9, 2023.
[3] Warrant to acquire one Common Share at an exercise price of $1.26, expiring on December 27, 2022.
[4] Warrant to acquire one Common Share of the Corporation at an exercise price of $1.2625, expiring on December 27, 2022.
[5] Warrant to acquire one Common Share of the Corporation at an exercise price of CAD $2.15, expiring on February 21, 2022.
[6] Warrant to acquire one Common Share at an exercise price of CAD $1.90, expiring on February 21, 2020, exercisable only for any portion of or all debentures paid by the Corporation prior to maturity. During the year ended March 31, 2020, convertible debentures were fully repaid with an amount of CAD $2 million resulting in the cancellation of the outstanding conversion option.