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Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Common Stock Including Additional Paid in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Total
Balance (in shares) at Dec. 31, 2020 29,304      
Balance at Dec. 31, 2020 $ 249,805 $ 1,266 $ 97,568 $ 348,639
Net income (loss) 0 0 (2,568) (2,568)
Foreign currency translation adjustment 0 319 0 319
Share-based compensation expense $ 936 0 0 936
Issuance of common stock under stock option plan (in shares) 679      
Issuance of common stock under stock option plan $ 4,772 0 0 4,772
Balance (in shares) at Mar. 31, 2021 29,983      
Balance at Mar. 31, 2021 $ 255,513 1,585 95,000 352,098
Balance (in shares) at Dec. 31, 2021 30,439      
Balance at Dec. 31, 2021 $ 262,263 1,971 5,151 269,385
Net income (loss) 0 0 (5,395) (5,395)
Foreign currency translation adjustment 0 122 0 122
Share-based compensation expense $ 1,448 0 0 1,448
Balance (in shares) at Mar. 31, 2022 30,439      
Balance at Mar. 31, 2022 $ 263,711 $ 2,093 $ (244) $ 265,560