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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Total
Director [Member]
Common stock
Common stock
Director [Member]
Additional Paid-in Capital
Additional Paid-in Capital
Director [Member]
Retained Earnings [Member]
Treasury Stock
Beginning balance, shares outstanding at Dec. 31, 2020     17,995,000          
Beginning Balance at Dec. 31, 2020 $ 240,502,000   $ 260,000   $ 239,989,000   $ 102,303,000 $ (102,050,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net Income (Loss) 12,933,000           12,933,000  
Isuuance of common stock, shares     18,000 5,000        
Stock Issued During Period, Value, New Issues $ 479,000 $ 177,000 $ 1,000   478,000 $ 177,000    
Exercise of stock options, shares 101,000   30,000          
Stock Issued During Period, Value, Stock Options Exercised $ (148,000)       (148,000)      
Issuance of restricted common stock, shares     9,000          
Cancellation and retirement of restricted common stock, shares     (9,000)          
Stock Repurchased and Retired During Period, Value (347,000)       (347,000)      
APIC, Share-based Payment Arrangement, Increase for Cost Recognition 1,130,000       1,130,000      
Dividends on common stock (1,799,000)       (1,799,000)      
Adjustments to Additional Paid in Capital, Other (1,424,000)       (1,424,000)      
Treasury Stock, Value, Acquired, Cost Method $ 0              
Treasury Stock, Shares, Acquired 0              
Ending balance, shares outstanding at Mar. 31, 2021     18,048,000          
Ending Balance at Mar. 31, 2021 $ 251,503,000   $ 261,000   238,056,000   115,236,000 (102,050,000)
Beginning balance, shares outstanding at Dec. 31, 2021     15,332,000          
Beginning Balance at Dec. 31, 2021 128,015,000   $ 263,000   236,809,000   135,462,000 (244,519,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net Income (Loss) 16,402,000           16,402,000  
Isuuance of common stock, shares     13,000 3,000        
Stock Issued During Period, Value, New Issues $ 603,000 $ 147,000     603,000 $ 147,000    
Exercise of stock options, shares 18,736   9,000          
Stock Issued During Period, Value, Stock Options Exercised $ (22,000)       (22,000)      
Cancellation and retirement of restricted common stock, shares     (5,000)          
Stock Repurchased and Retired During Period, Value (207,000)       (207,000)      
APIC, Share-based Payment Arrangement, Increase for Cost Recognition 1,460,000       1,460,000      
Dividends on common stock (1,725,000)       (1,725,000)      
Treasury Stock, Value, Acquired, Cost Method $ (26,010,000)             (26,010,000)
Treasury Stock, Shares, Acquired 490,000   490,000          
Other, shares     27,000          
Stockholders' Equity, Other $ (1,358,000)       (1,358,000)      
Ending balance, shares outstanding at Mar. 31, 2022     14,889,000          
Ending Balance at Mar. 31, 2022 $ 120,021,000   $ 263,000   $ 238,423,000   $ 151,864,000 $ (270,529,000)