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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Treasury Stock [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Total
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2019 | $ 115 | $ 32,604 | $ 25,348 |  | $ (31) | $ 25,926
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Share-based compensation expense |  | 413 |  |  |  |
Issuance of shares from exercise of stock options | 1 | 353 |  |  |  |
Relinquishment of stock awards and deferred stock units to pay for withholding taxes |  | (41) |  |  |  |
Net loss |  |  | (2,845) |  |  | (2,845)
Foreign currency translation adjustment, net of tax |  |  |  |  | 81 | 81
Ending balance at Jun. 30, 2020 | 116 | 33,329 | 22,503 | $ (32,110) | 50 | $ 23,888
Supplemental share information |  |  |  |  |  |
Issuance of shares from stock awards (in shares) |  |  |  |  |  | 91
Relinquishment of stock awards to pay withholding taxes (in shares) |  |  |  |  |  | 14
Beginning balance at Mar. 31, 2020 | 116 | 33,103 | 24,356 |  | 40 | $ 25,505
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Share-based compensation expense |  | 226 |  |  |  |
Issuance of shares from exercise of stock options | 0 | 0 |  |  |  |
Relinquishment of stock awards and deferred stock units to pay for withholding taxes |  | 0 |  |  |  |
Net loss |  |  | (1,853) |  |  | (1,853)
Foreign currency translation adjustment, net of tax |  |  |  |  | 10 | 10
Ending balance at Jun. 30, 2020 | 116 | 33,329 | 22,503 | (32,110) | 50 | $ 23,888
Supplemental share information |  |  |  |  |  |
Issuance of shares from stock awards (in shares) |  |  |  |  |  | 9
Relinquishment of stock awards to pay withholding taxes (in shares) |  |  |  |  |  | 0
Beginning balance at Dec. 31, 2020 | 130 | 42,536 | 19,718 |  | (38) | $ 30,236
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Share-based compensation expense |  | 695 |  |  |  |
Issuance of shares from exercise of stock options | 0 | 277 |  |  |  |
Relinquishment of stock awards and deferred stock units to pay for withholding taxes |  | (100) |  |  |  |
Net loss |  |  | (4,320) |  |  | (4,320)
Foreign currency translation adjustment, net of tax |  |  |  |  | 85 | 85
Ending balance at Jun. 30, 2021 | 130 | 43,408 | 15,398 | (32,110) | 47 | $ 26,873
Supplemental share information |  |  |  |  |  |
Issuance of shares from stock awards (in shares) |  |  |  |  |  | 92
Relinquishment of stock awards to pay withholding taxes (in shares) |  |  |  |  |  | 32
Beginning balance at Mar. 31, 2021 | 130 | 42,816 | 17,512 |  | 15 | $ 28,363
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Share-based compensation expense |  | 431 |  |  |  |
Issuance of shares from exercise of stock options | 0 | 186 |  |  |  |
Relinquishment of stock awards and deferred stock units to pay for withholding taxes |  | (25) |  |  |  |
Net loss |  |  | (2,114) |  |  | (2,114)
Foreign currency translation adjustment, net of tax |  |  |  |  | 32 | 32
Ending balance at Jun. 30, 2021 | $ 130 | $ 43,408 | $ 15,398 | $ (32,110) | $ 47 | $ 26,873
Supplemental share information |  |  |  |  |  |
Issuance of shares from stock awards (in shares) |  |  |  |  |  | 27
Relinquishment of stock awards to pay withholding taxes (in shares) |  |  |  |  |  | 1

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