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Consolidated Statements of Stockholder's Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Common Stock [Member]
Treasury Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Total
Beginning balance, value at Dec. 31, 2020 $ 6,509 $ (12,450) $ 2,600 $ 50,195 $ 46,854
Beginning balance, shares at Dec. 31, 2020 17,274 (1,669)      
Stock-based compensation 64 64
Net income 1,306 1,306
Ending balance, value at Mar. 31, 2021 $ 6,509 $ (12,450) 2,664 51,501 48,224
Ending balance, shares at Mar. 31, 2021 17,274 (1,669)      
Beginning balance, value at Dec. 31, 2020 $ 6,509 $ (12,450) 2,600 50,195 46,854
Beginning balance, shares at Dec. 31, 2020 17,274 (1,669)      
Net income         3,404
Ending balance, value at Sep. 30, 2021 $ 6,509 $ (13,436) 2,387 53,599 49,059
Ending balance, shares at Sep. 30, 2021 17,274 (1,839)      
Beginning balance, value at Mar. 31, 2021 $ 6,509 $ (12,450) 2,664 51,501 48,224
Beginning balance, shares at Mar. 31, 2021 17,274 (1,669)      
Issuance of common stock in connection with stock-based compensation $ 339 (463) (124)
Issuance of common stock in connection with stock-based compensation, shares   45      
Stock-based compensation 287 287
Net income 1,618 1,618
Ending balance, value at Jun. 30, 2021 $ 6,509 $ (12,111) 2,488 53,119 50,005
Ending balance, shares at Jun. 30, 2021 17,274 (1,624)      
Issuance of common stock in connection with stock-based compensation $ 258 (258)
Issuance of common stock in connection with stock-based compensation, shares   35      
Treasury stock purchased $ (1,583) (1,583)
Treasury stock purchased , shares   (250)      
Stock-based compensation 157 157
Net income 480 480
Ending balance, value at Sep. 30, 2021 $ 6,509 $ (13,436) 2,387 53,599 49,059
Ending balance, shares at Sep. 30, 2021 17,274 (1,839)      
Beginning balance, value at Dec. 31, 2021 $ 6,509 $ (13,436) 2,552 53,506 49,131
Beginning balance, shares at Dec. 31, 2021 17,274 (1,839)      
Stock-based compensation 109 109
Net income (895) (895)
Ending balance, value at Mar. 31, 2022 $ 6,509 $ (13,436) 2,661 52,611 48,345
Ending balance, shares at Mar. 31, 2022 17,274 (1,839)      
Beginning balance, value at Dec. 31, 2021 $ 6,509 $ (13,436) 2,552 53,506 49,131
Beginning balance, shares at Dec. 31, 2021 17,274 (1,839)      
Net income         208
Ending balance, value at Sep. 30, 2022 $ 6,509 $ (12,997) 3,271 53,714 50,497
Ending balance, shares at Sep. 30, 2022 17,274 (1,779)      
Beginning balance, value at Mar. 31, 2022 $ 6,509 $ (13,436) 2,661 52,611 48,345
Beginning balance, shares at Mar. 31, 2022 17,274 (1,839)      
Issuance of common stock in connection with stock-based compensation $ 280 (399) (119)
Issuance of common stock in connection with stock-based compensation, shares   38      
Stock-based compensation 746 746
Net income 120 120
Ending balance, value at Jun. 30, 2022 $ 6,509 $ (13,156) 3,008 52,731 49,092
Ending balance, shares at Jun. 30, 2022 17,274 (1,801)      
Issuance of common stock in connection with stock-based compensation $ 159 (159)
Issuance of common stock in connection with stock-based compensation, shares   22      
Treasury stock purchased  
Stock-based compensation 422 422
Net income 983 983
Ending balance, value at Sep. 30, 2022 $ 6,509 $ (12,997) $ 3,271 $ 53,714 $ 50,497
Ending balance, shares at Sep. 30, 2022 17,274 (1,779)