Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION, Stock Option and Warrant Awards (Details)

v3.8.0.1
STOCK-BASED COMPENSATION, Stock Option and Warrant Awards (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Weighted Average Remaining Contractual Life [Abstract]    
Compensation expense $ 592 $ 633
Stock Options [Member]    
Stock Options and Warrants [Roll Forward]    
Outstanding at beginning of period (in shares) 1,323,587  
Granted (in shares) 0  
Exercised (in shares) (81,427)  
Forfeited (in shares) 0  
Outstanding at end of period (in shares) 1,242,160  
Exercisable, end of period (in shares) 1,042,160  
Weighted Average Exercise Price Per Share [Roll Forward]    
Outstanding at beginning of period (in dollars per share) $ 7.82  
Granted (in dollars per share) 0  
Exercised (in dollars per share) 6.26  
Forfeited (in dollars per share) 0  
Outstanding at end of period (in dollars per share) 7.93  
Exercisable, end of period (in dollars per share) $ 8.80  
Weighted Average Remaining Contractual Life [Abstract]    
Outstanding, weighted average remaining contractual life 4 years 1 month 6 days  
Exercisable, weighted average remaining contractual life 4 years 8 months 12 days  
Stock Options [Member] | Director [Member] | Vesting through 2017 [Member]    
Weighted Average Remaining Contractual Life [Abstract]    
Compensation expense $ 0 30
Stock Options [Member] | Officer and Key Employees [Member]    
Weighted Average Remaining Contractual Life [Abstract]    
Vesting period 4 years  
Stock Options [Member] | Officer and Key Employees [Member] | Vesting through 2018 [Member]    
Weighted Average Remaining Contractual Life [Abstract]    
Compensation expense $ 154 309
Stock Options [Member] | Mr. Hatem El Khalidi [Member]    
Weighted Average Remaining Contractual Life [Abstract]    
Compensation expense $ 0 $ 0