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Consolidated Statements of Stockholders' Equity - USD ($)
$ in Thousands
Cumulative Effect, Period of Adoption, Adjustment [Member]
Common Stock Outstanding [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Additional Paid-in Capital [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Retained Earnings [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
AOCI Attributable to Parent [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Treasury Stock [Member]
Common Stock Outstanding [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Treasury Stock [Member]
Total
Balance (in shares) at Dec. 31, 2018           21,398,182          
Balance at Dec. 31, 2018           $ 214 $ 154,388 $ (114,926) $ (24,842) $ 0  
Net income (loss)           0 0 (3,949) 0 0 $ (3,949)
Employee benefit related, net of tax           0 0 0 447 0 $ (447)
Foreign currency translation adjustment, net of tax           $ 0 0 0 344 0  
Noncash compensation (in shares)           60,000          
Noncash compensation           $ 0 469 0 0 0  
Treasury stock (in shares)           (10,000)          
Treasury stock           $ 0 0 0 0 0  
Retire treasury stock (in shares)           (149,756)          
Retire treasury stock           $ (1) (155) 0 0 0  
Exercise of stock options (in shares)                     0
Balance (in shares) at Dec. 31, 2019           21,298,426          
Balance at Dec. 31, 2019 $ 0 $ 0 $ 1,442 $ 0 $ 0 $ 213 154,702 (117,433) (24,051) 0 $ 13,431
Net income (loss)           0 0 1,668 0 0 1,668
Employee benefit related, net of tax           0 0 0 (423) 0 $ 423
Foreign currency translation adjustment, net of tax           $ 0 0 0 (224) 0  
Noncash compensation (in shares)           70,000          
Noncash compensation           $ 0 426 0 0 0  
Retire treasury stock (in shares)           (82,424)          
Retire treasury stock           $ 0 (99) 0 0 0  
Exercise of stock options (in shares)           14,956         306,500
Exercise of stock options           $ 0 (4) 0 0 0  
Balance (in shares) at Dec. 31, 2020           21,300,958          
Balance at Dec. 31, 2020           $ 213 $ 155,025 $ (115,765) $ (24,698) $ 0 $ 14,775