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Condensed Consolidated Statements of Stockholders' Equity - USD ($)
shares in Thousands, $ in Thousands
Total
Preferred Stock
Common Stock
Additional Paid-In Capital
Retained Earnings
Treasury Stock
Balance, beginning of period (in shares) at Dec. 31, 2018   0 13,005     0
Balance, beginning of period at Dec. 31, 2018 $ 259,232 $ 0 $ 130 $ 107,760 $ 151,342 $ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Exercise of common stock options, shares (in shares)     57      
Exercise of common stock options 555     555    
Compensation expense on common stock options 31     31    
Issuance of restricted stock, shares (in shares)     71      
Issuance of restricted stock 0          
Compensation expense on restricted common stock 464   $ 1 463    
Taxes paid related to net shares settlement of equity awards (192)     (192)    
Net income 98       98  
Balance, end of period (in shares) at Mar. 31, 2019   0 13,133     0
Balance, end of period at Mar. 31, 2019 260,188 $ 0 $ 131 108,617 151,440 $ 0
Balance, beginning of period (in shares) at Dec. 31, 2019   0 13,178     (38)
Balance, beginning of period at Dec. 31, 2019 247,693 $ 0 $ 132 110,573 137,478 $ (490)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Compensation expense on common stock options 17     17    
Issuance of restricted stock, shares (in shares)     95      
Issuance of restricted stock 0          
Compensation expense on restricted common stock 486   $ 1 485    
Taxes paid related to net shares settlement of equity awards (149)     (149)    
Net income 4,082       4,082  
Balance, end of period (in shares) at Mar. 31, 2020   0 13,273     (38)
Balance, end of period at Mar. 31, 2020 $ 252,129 $ 0 $ 133 $ 110,926 $ 141,560 $ (490)