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Consolidated Statement of Equity (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
Retained Earnings [Member]
Balance at March 31, 2020 at Dec. 31, 2019 [1] $ 11,949 $ 6 $ 11,445 $ (1,665) $ 2,163
Ending balance, shares at Dec. 31, 2019 [1]   6,245      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Stock-based compensation expense 31 31
Repurchase of common shares under Stock Buyback Plan (158) (158)
Repurchase of common shares under Stock Buyback Plan, shares   (21)      
Net income (241) (241)
Balance at June 30, 2020 at Mar. 31, 2020 11,581 $ 6 11,476 (1,823) 1,922
Shares, Outstanding, Ending Balance at Mar. 31, 2020   6,224      
Balance at March 31, 2020 at Dec. 31, 2019 [1] 11,949 $ 6 11,445 (1,665) 2,163
Ending balance, shares at Dec. 31, 2019 [1]   6,245      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Net income 110        
Balance at June 30, 2020 at Jun. 30, 2020 11,848 $ 6 11,503 (1,934) 2,273
Shares, Outstanding, Ending Balance at Jun. 30, 2020   6,211      
Balance at March 31, 2020 at Mar. 31, 2020 11,581 $ 6 11,476 (1,823) 1,922
Ending balance, shares at Mar. 31, 2020   6,224      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Stock-based compensation expense 24 24
Stock options exercised 3 3
Stock options exercised, shares   3      
Repurchase of common shares under Stock Buyback Plan (111) (111)
Repurchase of common shares under Stock Buyback Plan, shares   (16)      
Net income 351 351
Balance at June 30, 2020 at Jun. 30, 2020 11,848 $ 6 11,503 (1,934) 2,273
Shares, Outstanding, Ending Balance at Jun. 30, 2020   6,211      
Balance at March 31, 2020 at Dec. 31, 2020 12,464 $ 6 11,612 (2,702) 3,548
Ending balance, shares at Dec. 31, 2020   6,118      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
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
Balance at June 30, 2020 at Mar. 31, 2021 13,268 $ 6 11,677 (3,113) 4,698
Shares, Outstanding, Ending Balance at Mar. 31, 2021   6,107      
Balance at March 31, 2020 at Dec. 31, 2020 $ 12,464 $ 6 11,612 (2,702) 3,548
Ending balance, shares at Dec. 31, 2020   6,118      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
Stock options exercised, shares 17,763        
Net income $ 1,352        
Balance at June 30, 2020 at Jun. 30, 2021 13,308 $ 6 11,710 (3,308) 4,900
Shares, Outstanding, Ending Balance at Jun. 30, 2021   6,095      
Balance at March 31, 2020 at Mar. 31, 2021 13,268 $ 6 11,677 (3,113) 4,698
Ending balance, shares at Mar. 31, 2021   6,107      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]          
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
Balance at June 30, 2020 at Jun. 30, 2021 $ 13,308 $ 6 $ 11,710 $ (3,308) $ 4,900
Shares, Outstanding, Ending Balance at Jun. 30, 2021   6,095      
[1] The balance at December 31, 2019 has been updated to reflect the impact of the 1-for-4 reverse stock split effective December 1, 2020.