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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Director
Common stock
Common stock
Director
Additional Paid-in Capital
Additional Paid-in Capital
Director
Retained Earnings
Treasury Stock
Beginning balance, shares outstanding at Dec. 31, 2020     17,995,000          
Beginning Balance at Dec. 31, 2020 $ 240,502   $ 260   $ 239,989   $ 102,303 $ (102,050)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net Income (Loss) 19,812           19,812  
Isuuance of common stock, shares     47,000 13,000        
Issuance of common stock $ 1,228 $ 495 $ 1   1,227 $ 495    
Exercise of stock options, shares 314,294   127,000          
Exercise of stock options $ (177)   $ 1   (178)      
Issuance of restricted common stock, shares     9,000          
Cancellation and retirement of restricted common stock, shares     (11,000)          
Cancellation and surrender of restricted common stock (375)       (375)      
Stock-based compensation expense 3,337       3,337      
Dividends on common stock (5,390)       (5,390)      
Convertible notes conversions $ (1,424)       (1,424)      
Treasury stock acquired, shares (1,528,197)   (1,528,000)          
Treasury stock acquired $ (65,540)             (65,540)
Ending balance, shares outstanding at Sep. 30, 2021     16,652,000          
Ending Balance at Sep. 30, 2021 192,468   $ 262   237,681   122,115 (167,590)
Beginning balance, shares outstanding at Jun. 30, 2021     17,826,000          
Beginning Balance at Jun. 30, 2021 232,871   $ 262   237,891   109,069 (114,351)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net Income (Loss) 13,046           13,046  
Isuuance of common stock, shares     15,000 3,000        
Issuance of common stock $ 388 147     388 147    
Exercise of stock options, shares 32,665   12,000          
Exercise of stock options $ (82)       (82)      
Cancellation and retirement of restricted common stock, shares     (1,000)          
Cancellation and surrender of restricted common stock (28)       (28)      
Stock-based compensation expense 1,148       1,148      
Dividends on common stock $ (1,783)       (1,783)      
Treasury stock acquired, shares (1,203,493)   (1,203,000)          
Treasury stock acquired $ (53,239)             (53,239)
Ending balance, shares outstanding at Sep. 30, 2021     16,652,000          
Ending Balance at Sep. 30, 2021 192,468   $ 262   237,681   122,115 (167,590)
Beginning balance, shares outstanding at Dec. 31, 2021     15,332,000          
Beginning Balance at Dec. 31, 2021 128,015   $ 263   236,809   135,462 (244,519)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net Income (Loss) 33,161           33,161  
Isuuance of common stock, shares     39,000 7,000        
Issuance of common stock $ 1,378 322     1,378 322    
Exercise of stock options, shares 18,736   9,000          
Exercise of stock options $ (22)       (22)      
Cancellation and retirement of restricted common stock, shares     (6,000)          
Cancellation and surrender of restricted common stock (205)       (205)      
Stock-based compensation expense 4,255       4,255      
Dividends on common stock $ (5,108)       (5,108)      
Treasury stock acquired, shares (695,496)   (695,000)          
Treasury stock acquired $ (34,234)             (34,234)
Other, shares     27,000          
Other (1,358)       (1,358)      
Ending balance, shares outstanding at Sep. 30, 2022     14,713,000          
Ending Balance at Sep. 30, 2022 128,920   $ 263   238,787   168,623 (278,753)
Beginning balance, shares outstanding at Jun. 30, 2022     14,698,000          
Beginning Balance at Jun. 30, 2022 122,844   $ 263   238,571   162,763 (278,753)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net Income (Loss) 5,860           5,860  
Isuuance of common stock, shares     14,000 2,000        
Issuance of common stock $ 377 $ 76     377 $ 76    
Exercise of stock options, shares 0              
Cancellation and retirement of restricted common stock, shares     (1,000)          
Cancellation and surrender of restricted common stock $ 0            
Stock-based compensation expense 1,416       1,416      
Dividends on common stock $ (1,653)       (1,653)      
Treasury stock acquired, shares 0              
Treasury stock acquired $ 0              
Ending balance, shares outstanding at Sep. 30, 2022     14,713,000          
Ending Balance at Sep. 30, 2022 $ 128,920   $ 263   $ 238,787   $ 168,623 $ (278,753)