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Consolidated Statements of Stockholders’ Equity (Deficit) (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Series A Special Voting
Preferred Stock
Common Stock
Exchangeable Shares
Additional Paid-In Capital
Accumulated Other Comprehensive Loss
Accumulated Deficit
Total
Balance at Dec. 31, 2021 $ 12 $ 159,256 $ (117,199) $ 42,069
Balance (in Shares) at Dec. 31, 2021 12,284 9,295        
Issuance of common stock under stock plan, net (9) (9)
Issuance of common stock under stock plan, net (in Shares)   9          
Stock-based compensation 1,171 1,171
Unrealized gain on available-for-sale securities (37) (37)
Net loss (6,754) (6,754)
Balance at Mar. 31, 2022 $ 12 160,418 (37) (123,953) 36,440
Balance (in Shares) at Mar. 31, 2022 12,293 9,295        
Balance at Dec. 31, 2022 $ 14 164,865 (25) (149,597) 15,257
Balance (in Shares) at Dec. 31, 2022 14,270 9,107        
Exchange of exchangeable shares $ 1 (1)
Exchange of exchangeable shares (in Shares) 310 (310)        
Stock-based compensation 1,307 1,307
Unrealized gain on available-for-sale securities 14 14
Net loss (3,148) (3,148)
Balance at Mar. 31, 2023 $ 15 $ 166,171 $ (11) $ (152,745) $ 13,430
Balance (in Shares) at Mar. 31, 2023 14,580 8,797