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Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
$ in Thousands
Common Stock Outstanding [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
Treasury Stock, Common [Member]
Total
Balance (in shares) at Dec. 31, 2021 21,864,724          
Balance at Dec. 31, 2021 $ 218 $ 154,904 $ (112,842) $ (22,994) $ 0  
Net (loss) income 0 0 237 0 0 $ 237
Foreign currency translation adjustment $ 0 0 0 583 0  
Issuance of restricted common stock (in shares) 197,500          
Issuance of restricted common stock $ 2 (2) 0 0 0  
Exercise of stock options (in shares) 11,120          
Exercise of stock options $ 0 (17) 0 0 0  
Noncash compensation (in shares) 15,000          
Noncash compensation $ 0 176 0 0 0  
Balance (in shares) at Apr. 03, 2022 22,088,344          
Balance at Apr. 03, 2022 $ 220 155,061 (112,605) (22,411) 0  
Balance (in shares) at Dec. 31, 2022 22,175,645          
Balance at Dec. 31, 2022 $ 221 155,535 (115,336) (20,845) 0 19,575
Net (loss) income 0 0 (175) 0 0 (175)
Foreign currency translation adjustment $ 0 0 0 1,373 0  
Issuance of restricted common stock (in shares) 160,000          
Issuance of restricted common stock $ 2 (2) 0 0 0  
Exercise of stock options (in shares) 45,198          
Exercise of stock options $ 1 (48) 0 0 0  
Noncash compensation (in shares) 15,000          
Noncash compensation $ 0 263 0 0 0  
Balance (in shares) at Apr. 02, 2023 22,395,843          
Balance at Apr. 02, 2023 $ 224 $ 155,748 $ (115,511) $ (19,472) $ 0 $ 20,989