Consolidated Statements of Changes in Shareholders Equity - USD ($) $ in Thousands |
Public Offering [Member]
Common Stock [Member]
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Public Offering [Member]
Additional Paid-in Capital [Member]
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Public Offering [Member]
AOCI Attributable to Parent [Member]
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Public Offering [Member]
Retained Earnings [Member]
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Public Offering [Member] |
At-the-market Offering [Member]
Common Stock [Member]
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At-the-market Offering [Member]
Additional Paid-in Capital [Member]
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At-the-market Offering [Member]
AOCI Attributable to Parent [Member]
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At-the-market Offering [Member]
Retained Earnings [Member]
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At-the-market Offering [Member] |
Common Stock [Member] |
Additional Paid-in Capital [Member] |
AOCI Attributable to Parent [Member] |
Retained Earnings [Member] |
Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance (in shares) at Mar. 31, 2018 | 25,638,215 | ||||||||||||||
| Balance at Mar. 31, 2018 | $ 67,806 | $ 7,152 | $ (6,304) | $ (61,461) | $ 7,193 | ||||||||||
| Net loss and total comprehensive loss for the period | (39,366) | (39,366) | |||||||||||||
| Cumulative translation adjustment | (831) | $ (831) | |||||||||||||
| Warrants exercised (in shares) | 772,474 | 775,855 | |||||||||||||
| Warrants exercised | $ 1,345 | $ 1,345 | |||||||||||||
| Net proceeds from shares issued under the at-the-market (ATM) program (in shares) | 51,612,000 | 0 | |||||||||||||
| Net proceeds from shares issued under the at-the-market (ATM) program | $ 41,609 | $ 221 | $ 41,830 | ||||||||||||
| Stock based compensation (in shares) | 4,167 | ||||||||||||||
| Stock based compensation | $ 2 | 777 | 779 | ||||||||||||
| Issuance of shares for payment of interest on convertible debentures (in shares) | 105,878 | ||||||||||||||
| Issuance of shares for payment of interest on convertible debentures | $ 95 | 95 | |||||||||||||
| Balance (in shares) at Mar. 31, 2019 | 78,132,734 | ||||||||||||||
| Balance at Mar. 31, 2019 | $ 110,857 | 8,150 | (7,135) | (100,827) | 11,045 | ||||||||||
| Net loss and total comprehensive loss for the period | (25,513) | (25,513) | |||||||||||||
| Cumulative translation adjustment | (752) | (752) | |||||||||||||
| Warrants exercised (in shares) | 7,056,103 | ||||||||||||||
| Warrants exercised | $ 18,810 | (262) | 18,548 | ||||||||||||
| Net proceeds from shares issued under the at-the-market (ATM) program (in shares) | 4,065,986 | 4,065,986 | |||||||||||||
| Net proceeds from shares issued under the at-the-market (ATM) program | $ 6,941 | $ 6,941 | |||||||||||||
| Shares issued as a settlement (in shares) | 900,000 | ||||||||||||||
| Shares issued as a settlement | $ 738 | 738 | |||||||||||||
| Stock based compensation (in shares) | 54,626 | ||||||||||||||
| Stock based compensation | $ 78 | 1,909 | 1,987 | ||||||||||||
| Balance (in shares) at Mar. 31, 2020 | 90,209,449 | ||||||||||||||
| Balance at Mar. 31, 2020 | $ 137,424 | $ 9,797 | $ (7,887) | $ (126,340) | $ 12,994 |
| X | ||||||||||
- Definition The number of shares issued during the period for payments of interest on convertible debentures. No definition available.
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| X | ||||||||||
- Definition The number of shares issued for settlements during the period. No definition available.
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| X | ||||||||||
- Definition Number of shares issued for warrants exercised during the current period. No definition available.
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| X | ||||||||||
- Definition Value of stock issued for payment of interest on convertible debentures during the period. No definition available.
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| X | ||||||||||
- Definition Equity impact of the value of stock issued for settlements during the period. No definition available.
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| X | ||||||||||
- Definition Equity impact of the value of stock issued for warrants exercised during the period. No definition available.
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of shares issued which are neither cancelled nor held in the treasury. No definition available.
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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