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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Cumulative Effect, Period of Adoption, Adjustment
Cumulative Effect, Period of Adoption, Adjusted Balance
Common Stock [Member]
Common Stock [Member]
Cumulative Effect, Period of Adoption, Adjusted Balance
Additional Paid-in Capital
Additional Paid-in Capital
Cumulative Effect, Period of Adoption, Adjusted Balance
Accumulated Deficit
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjustment
Accumulated Deficit
Cumulative Effect, Period of Adoption, Adjusted Balance
Treasury Stock
Treasury Stock
Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance, shares outstanding at Dec. 31, 2017       16,098,000 16,098,000              
Beginning Balance at Dec. 31, 2017 $ 197,656 $ 2,131 $ 199,787 $ 226 $ 226 $ 216,158 $ 216,158 $ 57,904 $ 2,131 $ 60,035 $ (76,632) $ (76,632)
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Net Income (Loss) $ 11,645             11,645        
Issuance of common stock from employee stock purchase plan (in shares) 49,938                      
Isuuance of common stock, shares       62,000                
Issuance of common stock $ 1,200     $ 1   1,199            
Exercise of stock options, shares 459,000     140,000                
Exercise of stock options $ (33)     $ 1   (34)            
Issuance of restricted common stock, shares       87,000                
Issuance of restricted common stock 25     $ 1   24            
Cancellation and retirement of restricted common stock, shares       (30,000)                
Cancellation and retirement of restricted common stock (398)         (398)            
Stock-based compensation expense 6,531         6,531            
Dividends on common stock (5,514)         (5,514)            
Treasury stock acquired, shares       (1,102,000)                
Treasury stock acquired (17,662)                   (17,662)  
Ending balance, shares outstanding at Dec. 31, 2018       18,078,000                
Ending Balance at Dec. 31, 2018 221,492     $ 257   243,849   71,680     (94,294)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Net Income (Loss) $ 14,533             14,533        
Issuance of common stock from employee stock purchase plan (in shares) 73,731                      
Isuuance of common stock, shares       81,000                
Issuance of common stock $ 972     $ 1   971            
Exercise of stock options, shares 247,000     76,000                
Exercise of stock options $ 472     $ 1   471            
Issuance of restricted common stock, shares       26,000                
Issuance of restricted common stock 0                      
Cancellation and retirement of restricted common stock, shares       (21,000)                
Cancellation and retirement of restricted common stock (194)         (194)            
Stock-based compensation expense 2,153         2,153            
Dividends on common stock (5,398)         (5,398)            
Stock Issued During Period, Shares, Conversion of Convertible Securities       2,823,000                
Stock Issued During Period, Value, Conversion of Convertible Securities $ 25,911     $ 28   25,883            
Treasury stock acquired, shares (1,101,969)     (400,000)                
Treasury stock acquired $ (7,756)                   (7,756)  
Other (in share)       15,000                
Other 295         295            
Ending balance, shares outstanding at Dec. 31, 2019       17,855,000                
Ending Balance at Dec. 31, 2019 226,569     $ 259   242,147   86,213     (102,050)  
Increase (Decrease) in Stockholders' Equity [Roll Forward]                        
Net Income (Loss) $ 16,090             16,090        
Issuance of common stock from employee stock purchase plan (in shares) 71,908     72,000                
Issuance of common stock from employee stock purchase plan $ 1,202     $ 1   1,201            
Isuuance of common stock, shares       31,000                
Issuance of common stock $ 653         653            
Exercise of stock options, shares 40,000     20,000                
Exercise of stock options $ (70)         (70)            
Issuance of restricted common stock, shares       10,000                
Issuance of restricted common stock 0                      
Cancellation and retirement of restricted common stock, shares       (11,000)                
Cancellation and retirement of restricted common stock (250)         (250)            
Stock-based compensation expense 2,717         2,717            
Dividends on common stock (6,048)         (6,048)            
Convertible notes repurchase $ (828)         (828)            
Treasury stock acquired, shares (400,000)                      
Other (in share)       18,000                
Other $ 467         467            
Ending balance, shares outstanding at Dec. 31, 2020       17,995,000                
Ending Balance at Dec. 31, 2020 $ 240,502     $ 260   $ 239,989   $ 102,303     $ (102,050)