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Consolidated Statements of Changes in Shareholders' Equity - USD ($)
$ in Thousands
Common Stock [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Noncontrolling Interest [Member]
Total
Balance (in shares) at Dec. 31, 2020 20,373,519            
Balance at Dec. 31, 2020 $ 2,037 $ 185,464 $ (1,782) $ (47,598) $ (21,321) $ 123 $ 116,923
Net loss       (234)   4 $ (230)
Stock option exercises (in shares) 133,907           204,429
Stock option exercises $ 13 385     (133)   $ 265
Stock-based compensation -stock options   618         618
Stock-based compensation -restricted stock   53         53
Vesting of restricted stock (in shares) 15,001            
Vesting of restricted stock $ 2 (2)     (15)   (15)
Foreign currency translation adjustments     129       $ 129
Balance (in shares) at Dec. 31, 2021 20,522,427           16,089,832
Balance at Dec. 31, 2021 $ 2,052 186,518 (1,653) (47,832) (21,469) 127 $ 117,743
Net loss       (119)   (1) $ (120)
Stock option exercises (in shares) 39,119           59,500
Stock option exercises $ 4 112     (7)   $ 109
Stock-based compensation -stock options   761         761
Stock-based compensation -restricted stock   15         15
Vesting of restricted stock (in shares) 9,164            
Vesting of restricted stock $ 1 (1)     (8)   (8)
Foreign currency translation adjustments     (2,097)       $ (2,097)
Balance (in shares) at Dec. 31, 2022 20,570,710           16,135,358
Balance at Dec. 31, 2022 $ 2,057 $ 187,405 $ (3,750) $ (47,951) $ (21,484) $ 126 $ 116,403