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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 [Member]
Total
Balance (in shares) at Dec. 31, 2020 21,300,958          
Balance at Dec. 31, 2020 $ 213 $ 155,025 $ (115,765) $ (24,698) $ 0  
Net (loss) income 0 0 2,193 0 0 $ 2,193
Foreign currency translation adjustment $ 0 0 0 (51) 0  
Exercise of stock options (in shares) 196,487          
Exercise of stock options $ 2 (384) 0 0 0  
Noncash compensation (in shares) 17,500          
Noncash compensation $ 0 163 0 0 0  
Balance (in shares) at Jul. 04, 2021 21,514,945          
Balance at Jul. 04, 2021 $ 215 154,804 (113,572) (24,749) 0  
Balance (in shares) at Apr. 04, 2021 21,436,963          
Balance at Apr. 04, 2021 $ 214 154,783 (117,395) (25,104) 0  
Net (loss) income 0 0 3,823 0 0 3,823
Foreign currency translation adjustment $ 0 0 0 355 0  
Exercise of stock options (in shares) 60,482          
Exercise of stock options $ 1 (81) 0 0 0  
Noncash compensation (in shares) 17,500          
Noncash compensation $ 0 102 0 0 0  
Balance (in shares) at Jul. 04, 2021 21,514,945          
Balance at Jul. 04, 2021 $ 215 154,804 (113,572) (24,749) 0  
Balance (in shares) at Dec. 31, 2021 21,864,724          
Balance at Dec. 31, 2021 $ 218 154,904 (112,842) (22,994) 0 19,286
Net (loss) income 0 0 (392) 0 0 (392)
Foreign currency translation adjustment $ 0 0 0 431 0  
Exercise of stock options (in shares) 39,759          
Exercise of stock options $ 1 (37) 0 0 0  
Noncash compensation (in shares) 30,000          
Noncash compensation $ 0 349 0 0 0  
Balance (in shares) at Jul. 03, 2022 22,131,983          
Balance at Jul. 03, 2022 $ 221 155,214 (113,234) (22,563) 0 19,638
Issuance of restricted common stock (in shares) 197,500          
Issuance of restricted common stock $ 2 (2) 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  
Net (loss) income 0 0 (629) 0 0 (629)
Foreign currency translation adjustment $ 0 0 0 (152) 0  
Exercise of stock options (in shares) 28,639          
Exercise of stock options $ 1 (20) 0 0 0  
Noncash compensation (in shares) 15,000          
Noncash compensation $ 0 173 0 0 0  
Balance (in shares) at Jul. 03, 2022 22,131,983          
Balance at Jul. 03, 2022 $ 221 $ 155,214 $ (113,234) $ (22,563) $ 0 $ 19,638