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Consolidated Statement of Stockholders' Equity - USD ($)
Total
Common Stock Outstanding
Paid-In Capital
Accumulated Other Comprehensive Income
Treasury Stock
Retained Earnings
Beginning Balance (in shares) at Dec. 31, 2020   7,980,516        
Beginning Balance at Dec. 31, 2020 $ 93,932,000 $ 80,000 $ 36,127,000 $ 1,375,000 $ (28,521,000) $ 84,871,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) 4,230,000         4,230,000
Change in post retirement benefits, net of tax (191,000)     (191,000)    
Purchase of treasury stock         (96,000)  
Restricted stock vested (in shares)   110,000        
Restricted stock vested 1,000 $ 1,000        
Share-based compensation 1,416,000   1,416,000      
Ending Balance (in shares) at Sep. 30, 2021   8,083,279        
Ending Balance at Sep. 30, 2021 99,292,000 $ 81,000 37,543,000 1,184,000 (28,617,000) 89,101,000
Beginning Balance (in shares) at Jun. 30, 2021   8,040,748        
Beginning Balance at Jun. 30, 2021 102,103,000 $ 80,000 36,931,000 1,247,000 (28,568,000) 92,413,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) (3,312,000)         (3,312,000)
Change in post retirement benefits, net of tax $ (63,000)     (63,000)    
Purchase of treasury stock (in shares) (3,363)          
Purchase of treasury stock         $ (49,000)  
Restricted stock vested (in shares)         45,894  
Restricted stock vested $ 1,000 $ 1,000        
Share-based compensation 612,000   612,000      
Ending Balance (in shares) at Sep. 30, 2021   8,083,279        
Ending Balance at Sep. 30, 2021 $ 99,292,000 $ 81,000 37,543,000 1,184,000 $ (28,617,000) 89,101,000
Beginning Balance (in shares) at Dec. 31, 2021 8,235,740 8,235,740        
Beginning Balance at Dec. 31, 2021 $ 100,095,000 $ 82,000 38,013,000 1,075,000 (28,617,000) 89,542,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) 7,371,000         7,371,000
Change in post retirement benefits, net of tax $ (191,000)     (191,000)    
Purchase of treasury stock (in shares) (7,237)          
Purchase of treasury stock         $ (482,000)  
Restricted stock vested (in shares)   226,201     (48,286)  
Restricted stock vested $ 2,000 $ 2,000        
Share-based compensation $ 1,705,000   1,705,000      
Ending Balance (in shares) at Sep. 30, 2022 8,413,655 8,413,655        
Ending Balance at Sep. 30, 2022 $ 108,672,000 $ 84,000 $ 39,718,000 $ 1,056,000 $ (29,099,000) $ 96,913,000