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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, 2020 $ 130 $ 42,536 $ 19,718   $ (38) $ 30,236
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation expense   264        
Issuance of shares from exercise of stock options   91        
Relinquishment of stock awards and deferred stock units to pay for withholding taxes   (75)        
Net loss     (2,206)     (2,206)
Foreign currency translation adjustment, net of tax         53 53
Ending balance at Mar. 31, 2021 130 42,816 17,512 $ (32,110) 15 $ 28,363
Supplemental share information            
Issuance of shares from stock awards (in shares)           65
Relinquishment of stock awards to pay withholding taxes (in shares)           31
Beginning balance at Dec. 31, 2021 139 55,246 15,573   143 $ 38,991
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation expense   296        
Issuance of shares from exercise of stock options   0        
Relinquishment of stock awards and deferred stock units to pay for withholding taxes   (119)        
Net loss     (4,013)     (4,013)
Foreign currency translation adjustment, net of tax         (42) (42)
Ending balance at Mar. 31, 2022 $ 139 $ 55,423 $ 11,560 $ (32,110) $ 101 $ 35,113
Supplemental share information            
Issuance of shares from stock awards (in shares)           63
Relinquishment of stock awards to pay withholding taxes (in shares)           26