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Net Income per Common Share (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Earnings Per Share [Abstract]        
Net income $ (2,272,000) $ 209,000 $ 5,689,000 $ (3,636,000)
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic 0 10,000 358,000 0
Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic $ (2,272,000) $ 199,000 $ 5,331,000 $ (3,636,000)
Weighted average common shares outstanding — basic 7,916,000 7,822,000 7,899,000 7,786,000
Weighted Average Number Diluted Shares Outstanding Adjustment 0 0 0 0
Weighted average common and potentially issuable common shares outstanding — diluted 7,916,000 7,822,000 7,899,000 7,786,000
Earnings Per Share, Basic $ (0.29) $ 0.03 $ 0.67 $ (0.47)
Earnings Per Share, Diluted $ (0.29) $ 0.03 $ 0.67 $ (0.47)