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v3.23.1

Shareholders' Equity - Shareholders' Equity (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance, beginning of period | $ 74,130 |
Foreign currency translation adjustment | 5 | $ (11)
Net loss | (832) | (1,967)
Balance, end of period | 73,326 | 51,536
Common stock and additional paid-in capital [Member] |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance, beginning of period | 74,934 | 72,818
Issuance of common stock and warrants, net | 0 | 2,000
Share-based compensation expense | 22 | 35
Proceeds from employee stock purchase plan | 1 | 2
Balance, end of period | 74,957 | 74,855
Accumulated other comprehensive loss [Member] |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance, beginning of period | (288) | (241)
Unrealized loss on available-for-sale securities, net of tax | 0 | (28)
Foreign currency translation adjustment | 5 | (11)
Balance, end of period | (283) | (280)
Accumulated deficit [Member] |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |
Balance, beginning of period | (516) | (21,072)
Net loss | (832) | (1,967)
Balance, end of period | $ (1,348) | $ (23,039)

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