Consolidated Balance Sheets (Parenthetical) - $ / shares	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Consolidated Balance Sheets
Common shares, par value (in dollars per share)	$ 0	$ 0
Common shares, Shares issued (in shares)	29,897,559	29,827,997
Common shares, Shares outstanding (in shares)	29,897,559	29,827,997
Warrants issued	12,327,780	11,417,034
Warrants outstanding	12,327,780	11,417,034

Number of warrants or rights issued.

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Number of warrants or rights outstanding.

+ References

No definition available.

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- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 210
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- References

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