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v3.21.1

Shareholders' Equity - Shareholders' Equity (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Balance, beginning of period | $ 49,814 |
Foreign currency translation adjustment | (12) | $ (34)
Net loss | (1,655) | (1,847)
Balance, end of period | 48,180 | 42,614
Common stock and additional paid-in capital [Member] |  |
Balance, beginning of period | 63,378 | 58,537
Share-based compensation expense | 31 | 37
Proceeds from employee stock purchase plan | 4 | 3
Balance, end of period | 63,413 | 58,577
Accumulated other comprehensive loss [Member] |  |
Balance, beginning of period | (186) | (176)
Unrealized loss on available-for-sale securities, net of tax | (2) | (23)
Foreign currency translation adjustment | (12) | (34)
Balance, end of period | (200) | (233)
Accumulated deficit [Member] |  |
Balance, beginning of period | (13,378) | (13,883)
Net loss | (1,655) | (1,847)
Balance, end of period | $ (15,033) | $ (15,730)

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