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Schedule of Reconciliation of Basic and Diluted Income Per Share Computations (Details) - shares
shares in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Per share - net income    
Basic:: Weighted average shares outstanding. 6,098 6,162
Diluted: Weighted average shares outstanding 6,098 6,162
Diluted: Weighted average effects of dilutive securities 87 59
Diluted: Total 6,185 6,221
Antidilutive securities: 17 50