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Consolidated Statement of Equity (Unaudited) - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
Retained Earnings [Member]
Beginning balance, value at Dec. 31, 2020 $ 12,464 $ 6 $ 11,612 $ (2,702) $ 3,548
Beginning balance, shares at Dec. 31, 2020   6,118      
Stock-based compensation expense 25 25
Stock options exercised 40 40
Stock options exercised, shares   18      
Repurchase of common shares under Stock Buyback Plan (411) (411)
Repurchase of common shares under Stock Buyback Plan, shares   (29)      
Net income 1,150 1,150
Ending balance, value at Mar. 31, 2021 13,268 $ 6 11,677 (3,113) 4,698
Ending balance, shares at Mar. 31, 2021   6,107      
Beginning balance, value at Dec. 31, 2020 12,464 $ 6 11,612 (2,702) 3,548
Beginning balance, shares at Dec. 31, 2020   6,118      
Net income 1,352        
Ending balance, value at Jun. 30, 2021 13,308 $ 6 11,710 (3,308) 4,900
Ending balance, shares at Jun. 30, 2021   6,095      
Beginning balance, value at Mar. 31, 2021 13,268 $ 6 11,677 (3,113) 4,698
Beginning balance, shares at Mar. 31, 2021   6,107      
Stock-based compensation expense 29 29
Stock options exercised 4 4
Stock options exercised, shares   1      
Repurchase of common shares under Stock Buyback Plan (195) (195)
Repurchase of common shares under Stock Buyback Plan, shares   (13)      
Net income 202 202
Ending balance, value at Jun. 30, 2021 13,308 $ 6 11,710 (3,308) 4,900
Ending balance, shares at Jun. 30, 2021   6,095      
Beginning balance, value at Dec. 31, 2021 13,749 $ 6 11,955 (3,807) 5,595
Beginning balance, shares at Dec. 31, 2021   6,071      
Stock-based compensation expense 51 51
Stock-based compensation expense, shares   2      
Repurchase of common shares under Stock Buyback Plan (422) (422)
Repurchase of common shares under Stock Buyback Plan, shares   (34)      
Net income 497 497
Ending balance, value at Mar. 31, 2022 13,875 $ 6 12,006 (4,229) 6,092
Ending balance, shares at Mar. 31, 2022   6,039      
Beginning balance, value at Dec. 31, 2021 $ 13,749 $ 6 11,955 (3,807) 5,595
Beginning balance, shares at Dec. 31, 2021   6,071      
Stock options exercised, shares 1,500,000        
Net income $ 719        
Ending balance, value at Jun. 30, 2022 13,488 $ 6 12,045 (4,877) 6,314
Ending balance, shares at Jun. 30, 2022   5,979      
Beginning balance, value at Mar. 31, 2022 13,875 $ 6 12,006 (4,229) 6,092
Beginning balance, shares at Mar. 31, 2022   6,039      
Stock-based compensation expense 32 32
Stock options exercised 7 7
Stock options exercised, shares   1      
Repurchase of common shares under Stock Buyback Plan (648) (648)
Repurchase of common shares under Stock Buyback Plan, shares   (61)      
Net income 222 222
Ending balance, value at Jun. 30, 2022 $ 13,488 $ 6 $ 12,045 $ (4,877) $ 6,314
Ending balance, shares at Jun. 30, 2022   5,979