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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
Common Stock
Additional Paid-in Capital
Treasury Stock, Common
Accumulated Other Comprehensive Loss
Accumulated Deficit
Total
Stockholders equity, Beginning balance at Dec. 31, 2021 $ 2,000 $ 195,881,000 $ 0 $ 0 $ (55,186,000) $ 140,697,000
Stockholders equity, Beginning balance (in shares) at Dec. 31, 2021 23,205,915          
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Vesting of restricted common stock $ 0 4,000 0 0 0 4,000
Vesting of restricted common stock (in shares) 7,890          
Issuance of common stock upon stock option exercises $ 0 19,000 0 0 0 $ 19,000
Issuance of common stock upon stock option exercises (in shares) 44,105         44,105
Stock-based compensation $ 0 1,464,000 0 0 0 $ 1,464,000
Vesting of restricted stock units, net of withholding $ 0 0 (25,000) 0 0 (25,000)
Vesting of restricted stock units, net of withholding (in shares) 31,154          
Unrealized gain (loss) on marketable securities $ 0 0 0 (275,000) 0 (275,000)
Net loss 0 0 0 0 (37,201,000) (37,201,000)
Stockholders equity, Ending balance at Jun. 30, 2022 $ 2,000 197,368,000 (25,000) (275,000) (92,387,000) 104,683,000
Stockholders equity, Ending balance (in shares) at Jun. 30, 2022 23,289,064          
Stockholders equity, Beginning balance at Mar. 31, 2022 $ 2,000 196,529,000 0 (204,000) (72,461,000) 123,866,000
Stockholders equity, Beginning balance (in shares) at Mar. 31, 2022 23,253,966          
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Vesting of restricted common stock $ 0 2,000 0 0 0 2,000
Vesting of restricted common stock (in shares) 3,944          
Stock-based compensation $ 0 837,000 0 0 0 837,000
Stock based compensation (in shares) 0          
Vesting of restricted stock units, net of withholding $ 0 0 (25,000) 0 0 (25,000)
Vesting of restricted stock units, net of withholding (in shares) 31,154          
Unrealized gain (loss) on marketable securities $ 0 0 0 (71,000) 0 (71,000)
Net loss 0 0 0 0 (19,926,000) (19,926,000)
Stockholders equity, Ending balance at Jun. 30, 2022 $ 2,000 197,368,000 (25,000) (275,000) (92,387,000) 104,683,000
Stockholders equity, Ending balance (in shares) at Jun. 30, 2022 23,289,064          
Stockholders equity, Beginning balance at Dec. 31, 2022 $ 2,000 199,492,000 (35,000) (161,000) (150,266,000) 49,032,000
Stockholders equity, Beginning balance (in shares) at Dec. 31, 2022 23,312,529          
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Vesting of restricted common stock $ 0 1,000 0 0 0 1,000
Vesting of restricted common stock (in shares) 3,946          
Issuance of common stock, purchase warrants and pre-funded warrants for the purchase of common stock, net of underwriting discounts, commissions and offering costs $ 2,000 46,501,000 0 0 0 46,503,000
Issuance of common stock, purchase warrants and pre-funded warrants for the purchase of common stock, net of underwriting discounts, commissions and offering costs (in shares) 17,810,000          
Issuance of common stock upon stock option exercises $ 0 1,466,000 0 0 0 $ 1,466,000
Issuance of common stock upon stock option exercises (in shares) 1,239,899         1,239,899
Stock-based compensation $ 0 2,208,000 0 0 0 $ 2,208,000
Stock based compensation (in shares) 0          
Vesting of restricted stock units, net of withholding $ 0 0 (19,000) 0 0 (19,000)
Vesting of restricted stock units, net of withholding (in shares) 15,578          
Unrealized gain (loss) on marketable securities $ 0 0 0 159,000 0 159,000
Net loss 0 0 0 0 (27,169,000) (27,169,000)
Stockholders equity, Ending balance at Jun. 30, 2023 $ 4,000 249,668,000 (54,000) (2,000) (177,435,000) 72,181,000
Stockholders equity, Ending balance (in shares) at Jun. 30, 2023 42,381,952          
Stockholders equity, Beginning balance at Mar. 31, 2023 $ 2,000 201,185,000 (47,000) (51,000) (167,325,000) 33,764,000
Stockholders equity, Beginning balance (in shares) at Mar. 31, 2023 23,786,337          
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Issuance of common stock, purchase warrants and pre-funded warrants for the purchase of common stock, net of underwriting discounts, commissions and offering costs $ 2,000 46,501,000 0 0 0 46,503,000
Issuance of common stock, purchase warrants and pre-funded warrants for the purchase of common stock, net of underwriting discounts, commissions and offering costs (in shares) 17,810,000          
Issuance of common stock upon stock option exercises $ 0 1,238,000 0 0 0 1,238,000
Issuance of common stock upon stock option exercises (in shares) 777,826          
Stock-based compensation $ 0 744,000 0 0 0 744,000
Stock based compensation (in shares) 0          
Vesting of restricted stock units, net of withholding $ 0 0 (7,000) 0 0 (7,000)
Vesting of restricted stock units, net of withholding (in shares) 7,789          
Unrealized gain (loss) on marketable securities $ 0 0 0 49,000 0 49,000
Net loss 0 0 0 0 (10,110,000) (10,110,000)
Stockholders equity, Ending balance at Jun. 30, 2023 $ 4,000 $ 249,668,000 $ (54,000) $ (2,000) $ (177,435,000) $ 72,181,000
Stockholders equity, Ending balance (in shares) at Jun. 30, 2023 42,381,952