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Stockholders' Equity | 9 Months Ended
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Sep. 30, 2022
Stockholders' Equity |
Stockholders' Equity | 4. Stockholders’ Equity Authorized capital stock The Company’s authorized capital stock consists of an unlimited number of common shares, no par value per share. Warrants to purchase common stock During the three and nine months ended September 30, 2022, the Company issued 111 warrants at a strike price of $8.11. The Company capitalized $441 in non-cash expense, and cash expense of $175 associated with issuing the SPA. During the three and nine month ended September 30, 2022, there were no warrants exercised. Outstanding warrants have a weighted average life of 5.30 years on September 30, 2022. The following tables detail the Company’s warrant activity for the three and nine months ended September 30, 2022: ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | Common Shares | ​ |  | ​
​ | ​ | Issuable Upon Exercise | ​ | ​ | ​
​ | ​ | of Outstanding | ​ | Weighted-Average
Creditor Warrants | ​ | Warrants | ​ | Exercise Price
Outstanding December 31, 2021 |  | 39 | ​ | $ | 6.80
Issued | ​ | — | ​ | ​ | —
Outstanding March 31, 2022 | ​ | 39 | ​ | $ | 6.80
Issued | ​ | — | ​ | ​ | —
Outstanding June 30, 2022 | ​ | 39 | ​ | $ | 6.80
Issued | ​ | 111 | ​ | ​ | 8.11
Outstanding September 30, 2022 | ​ | 150 | ​ | $ | 7.30
​ Equity Incentive Plan The Compensation Committee of the Board of Directors administers the Company’s equity incentive plan (the “Plan”). The Compensation Committee designates eligible participants to be included under the Plan and approves the number of equity instruments to be granted from time to time under the Plan. Currently, the maximum number of equity instruments issuable under the Plan, together with the Company’s prior stock option plan, is twenty-five percent (25%) of the total number of issued and outstanding common shares. Based upon the current shares outstanding, a maximum of 6,559 shares of common stock are authorized for issuance pursuant to stock options or other equity awards granted under the Plan. For all options issued under the Plan, the exercise price is the fair value of the underlying shares on the date of grant. All options vest within three years or less and are exercisable for a period of ten years from the date of grant. The Plan allows the issuance of Canadian and U.S. dollar grants. The table below outlines recognized contractor and employee expense from equity awards for the three and nine month periods ended September 30, 2022 and 2021. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended September 30, | ​ | Nine Months Ended September 30,
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021
Contractor options expense recognized | ​ | $ | 34 | ​ | $ | — | ​ | $ | 103 | ​ | $ | 9
Employee options expense recognized | ​ |  | 1,853 | ​ |  | 917 | ​ |  | 3,260 | ​ |  | 2,830
Total option expense recognized | ​ | $ | 1,887 | ​ | $ | 917 | ​ | $ | 3,363 | ​ | $ | 2,839
​ Stock Option Activity The following is a summary of option activity for the three and nine months ended September 30, 2022, for stock options denominated in U.S. dollars. Since August of 2020, there have been no Canadian denominated options outstanding. ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Number of | ​ | Weighted-Average
US Denominated Options | ​ | Options (thousands) |  | Exercise Price
Outstanding at December 31, 2021 |  | 4,259 | ​ | $ | 5.13
Granted |  | 200 | ​ |  | 5.64
Exercised |  | (26) | ​ |  | 0.58
Forfeited | ​ | (382) | ​ | ​ | 6.13
Outstanding at March 31, 2022 | ​ | 4,051 | ​ | ​ | 5.34
Granted | ​ | 305 | ​ | ​ | 5.71
Exercised | ​ | (19) | ​ | ​ | 2.38
Outstanding at June 30, 2022 |  | 4,337 | ​ | ​ | 5.14
Granted | ​ | 310 | ​ | ​ | 6.93
Exercised | ​ | (151) | ​ | ​ | 1.25
Forfeited | ​ | (30) | ​ | ​ | 5.59
Outstanding at September 30, 2022 | ​ | 4,466 | ​ | $ | 5.33
​ | ​ | ​ | ​ | ​ | ​
​ During the three and nine month periods ended September 30, 2022, there were 310 and 815 options granted, respectively. During the three and nine month periods ended September 30, 2022, there were 151 and 196 exercises of options, respectively. This resulted in a cash inflow of $188 and $249, respectively. During the three and nine month periods ended September 30, 2022, there were 30 and 412 option grant forfeitures by departing employees. Of the 4,466 U.S. denominated options granted and outstanding at September 30, 2022, 3,448 are fully vested and exercisable. The value of options and warrants issued was estimated using the Black-Scholes option pricing model using the assumptions in the table below. The expected volatility was determined using historical volatility of our stock based on the expected term of the award. ​ ​
​ | ​ | ​
​ | ​ | Valuation Assumptions
Black-Scholes Model Assumptions | ​ | September 30, 2022
Expected dividend |  | 0.00%
Risk free rate |  | 1.18 - 4.11%
Expected volatility | ​ | 67 - 74%
Expected life | ​ | 5 - 6.0 years
​ Restricted Share Units Activity ​ The Plan allows for the issuance of restricted share units (“RSU’s”). The following is a summary of RSU activity for the three and nine months ended September 30, 2022. During the three and nine month ended September 30, 2022, there were 20 and 28 RSU’s released from restriction, respectively. During the nine months ended September 30, 2022, there were 88 RSU’s forfeited by departing employees. All RSU’s vest over one to three years. ​
​ | ​ | ​
​ | ​ | Number of Restricted
US Denominated RSUs | ​ | Share Units (thousands)
Outstanding at December 31, 2021 |  | 219
Awarded | ​ | —
Forfeited |  | (88)
Outstanding at March 31, 2022 | ​ | 131
Awarded | ​ | —
Released | ​ | (8)
Outstanding at June 30, 2022 | ​ | 123
Awarded | ​ | —
Released | ​ | (20)
Outstanding at September 30, 2022 | ​ | 103
​ The value of RSU’s issued was estimated using the share price on the date of the award multiplied by the number of shares granted.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 16 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496180-112644 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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