Common Shares | 6. Common Shares Equity Financings On July 12, 2021, we closed a public offering that resulted in issuing 12,272,730 common shares in the capital of the Company (each a “Common Share’) and 7,408,101 Common Share purchase warrants (each a “Warrant”) for net proceeds of $12,323. Each Warrant entitles the holder thereof to purchase one Common Share at a price of $1.25 per Common Share (subject to adjustment in certain circumstances) and is exercisable for a period of 36 months from the closing date. The relative fair values of the Common Shares and Warrants, which were classified as equity, were $11,426 and $2,074, respectively. The Company renewed its at-the-market offering agreement in December 2021 (the “ATM Agreement”) with H. C. Wainwright & Co. LLC (“Wainwright”) to provide balance sheet flexibility at a potentially lower cost than other means of equity issuances. Under the ATM Agreement, the Company can, but is not obligated to, issue and sell Common Shares through Wainwright for aggregate gross proceeds of up to $10,000 (the “ATM Program”). During the nine months ended September 30, 2022, the Company sold 50,000 Common Shares under the ATM Program for net proceeds of $51. During the three and nine months ended September 30, 2021 the Company sold nil and 798,270 Common Shares, respectively, under the ATM Program for net proceeds of $nil and $871, respectively. As of September 30, 2022, $9,947 remained available under the renewed ATM Program. Each sale under the ATM Agreement was made pursuant to an “at the market offering” as defined in Rule 415 under the United States Securities Act of 1933, as amended. Warrants Warrant activity is summarized in the following table. Weighted Weighted Average Average Warrants Exercise Price Remaining Life Outstanding Per Share (Years) As of December 31, 2020 — $ — — Issued 7,408,101 1.25 3.0 As of December 31, 2021 7,408,101 $ 1.25 2.5 As of September 30, 2022 7,408,101 $ 1.25 1.8 Stock-Based Compensation The Company’s stock-based compensation plans include: restricted share units (“RSUs”) issuable pursuant to the Company’s long-term equity incentive plan, deferred share units (“DSUs”) issuable pursuant to the Company’s deferred share unit plan (“DSU Plan”) and stock options (“Stock Options”) issuable under the Company’s stock option plan. Stock-based compensation may be issued to our directors, officers, employees and consultants. The maximum number of Common Shares that may be reserved for issuance under the combined stock-based compensation plans is a variable number equal to 10% of the issued and outstanding Common Shares on a non-diluted basis at any particular time. Vista also issued phantom units in 2018 to be settled in cash over a three-year term. Stock-based compensation and phantom units may be granted from time to time at the discretion of the Board of Directors of the Company (the “Board”), with vesting provisions as determined by the Board. Stock-based compensation expense was: Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 RSUs $ 112 $ 143 $ 396 $ 512 DSUs — — 272 212 Stock Options — — — 3 $ 112 $ 143 $ 668 $ 727 Phantom units $ — $ (24) $ — $ 26 As of September 30, 2022, unrecognized compensation expense for RSUs was $408, which is expected to be recognized over a weighted average period of 1.3 years. Restricted Share Units The following table summarizes RSU activity: Weighted Average Number Grant-Date Fair of RSUs Value Per RSU Unvested - December 31, 2020 2,467,002 $ 0.42 Granted 891,000 0.76 Cancelled/forfeited (413,335) 0.48 Vested, net of shares withheld (946,328) 0.46 Unvested - December 31, 2021 1,998,339 $ 0.53 Granted 759,000 0.59 Cancelled/forfeited (395,569) 0.51 Vested, net of shares withheld (889,762) 0.49 Unvested - September 30, 2022 1,472,008 $ 0.60 During the nine months ended September 30, 2022 and 2021, the Company withheld Common Shares with an equivalent value to meet employee withholding tax obligations of $357 and $401, respectively, that resulted upon vesting of RSUs during the period. Common Shares withheld are considered cancelled/forfeited. Deferred Share Units The DSU Plan provides for granting of DSUs to non-employee directors. DSUs vest immediately, however the Company will issue one Common Share for each DSU only after the non-employee director ceases to be a director of the Company. In March 2022, the Board granted 324,000 DSUs and the Company recognized $272 in DSU expense. In February 2021, the Board granted 204,000 DSUs and the Company recognized $212 in DSU expense. The following table summarizes DSU activity: Weighted Average Number of Grant-Date Fair DSUs Value per DSU Outstanding - December 31, 2020 726,000 $ 0.57 Granted 204,000 1.04 Outstanding - December 31, 2021 930,000 $ 0.68 Granted 324,000 0.84 Outstanding - September 30, 2022 1,254,000 $ 0.72 Stock Options The following table summarizes option activity for vested awards: Weighted Average Weighted Average Remaining Aggregate Number of Exercise Price Contractual Term Intrinsic Options Per Option (Years) Value Outstanding - December 31, 2020 1,367,000 $ 0.71 2.63 $ 507 Outstanding - December 31, 2021 1,367,000 $ 0.71 1.64 $ 38 Outstanding - September 30, 2022 1,367,000 $ 0.71 0.89 $ 1 Exercisable - September 30, 2022 1,367,000 $ 0.71 0.89 $ 1 Phantom Units The following table summarizes phantom units activity: Weighted Average Remaining Number of Vesting Term Phantom Units (Years) Unvested - December 31, 2020 72,000 0.5 Vested (72,000) Unvested - December 31, 2021 — — Unvested - September 30, 2022 — — |