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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Common Stock
Additional Paid-in Capital
Accumulated Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2014 $ 199,592 $ 169 $ 147,474 $ 51,431 $ 518
Balance (in shares) at Dec. 31, 2014   16,903,884      
Increase (Decrease) in Stockholders' Equity          
Net Income 25,515     25,515  
Other comprehensive income (loss) (186)       (186)
Share-based compensation expense 1,165   1,165    
Issuance of restricted stock, net (in shares)   60,000      
Issuance of common stock 72,252 $ 45 72,207    
Issuance of common stock (in shares)   4,480,645      
Warrants exercised 689 $ 1 688    
Warrants exercised (in shares)   125,316      
Repurchase of common stock (116) $ 0 (116)    
Repurchase of common stock (in shares)   (7,165)      
Exercise of stock options 69 $ 0 69    
Exercise of stock options (in shares)   8,066      
Balance at Dec. 31, 2015 298,980 $ 215 221,487 76,946 332
Balance (in shares) at Dec. 31, 2015   21,570,746      
Increase (Decrease) in Stockholders' Equity          
Net Income 40,103     40,103  
Other comprehensive income (loss) (3,053)       (3,053)
Share-based compensation expense 2,729   2,729    
Issuance of restricted stock, net 0        
Issuance of restricted stock, net (in shares)   296,236      
Issuance of common stock 119,383 $ 58 119,325    
Issuance of common stock (in shares)   5,815,051      
Goodwill adjustment 379   379    
Repurchase of common stock (126)   (126)    
Repurchase of common stock (in shares)   0      
Exercise of stock options 1,345 $ 1 1,344    
Exercise of stock options (in shares)   116,250      
Balance at Dec. 31, 2016 $ 459,740 $ 274 345,138 117,049 (2,721)
Balance (in shares) at Dec. 31, 2016 27,798,283 27,798,283      
Increase (Decrease) in Stockholders' Equity          
Net Income $ 60,100     60,100  
Other comprehensive income (loss) 3,136       3,136
Share-based compensation expense 5,809   5,809    
Issuance of restricted stock, net 0        
Issuance of restricted stock, net (in shares)   166,397      
Issuance of common stock 709,377 $ 181 709,196    
Issuance of common stock (in shares)   17,954,274      
Goodwill adjustment 500   500    
Repurchase of common stock (1,258)   (1,258)    
Repurchase of common stock (in shares)   (21,537)      
Exercise of stock options 4,592 $ 3 4,589    
Exercise of stock options (in shares)   347,633      
Balance at Dec. 31, 2017 $ 1,241,996 $ 458 $ 1,063,974 $ 177,149 $ 415
Balance (in shares) at Dec. 31, 2017 46,245,050 46,245,050