Annual report pursuant to Section 13 and 15(d)

SHARE-BASED COMPENSATION, Stock Options and Warrant Awards (Details)

v3.8.0.1
SHARE-BASED COMPENSATION, Stock Options and Warrant Awards (Details)
12 Months Ended
Feb. 21, 2014
USD ($)
$ / shares
shares
May 29, 2013
USD ($)
$ / shares
shares
Nov. 15, 2012
USD ($)
$ / shares
shares
Sep. 25, 2011
$ / shares
shares
May 02, 2011
$ / shares
shares
Jan. 12, 2011
USD ($)
$ / shares
shares
Feb. 28, 2010
USD ($)
shares
Feb. 23, 2010
$ / shares
Jul. 31, 2009
Option
$ / shares
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2016
USD ($)
$ / shares
shares
Dec. 31, 2015
USD ($)
$ / shares
shares
Dec. 31, 2012
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 2,707,000 $ 2,552,000 $ 2,353,000  
Warrant [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Number of shares of common stock issued (in shares)                   0 0 0  
Stock Options [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 1,261,000 $ 1,456,000 $ 1,645,000  
Number of shares of common stock issued (in shares)                   0 0 0  
Exercise price (in dollars per share) | $ / shares                   $ 0      
Stock Options [Roll Forward]                          
Outstanding at beginning of period (in shares)                   1,348,437      
Granted (in shares)                   0      
Expired (in shares)                   0      
Exercised (in shares)                   (24,850)      
Forfeited (in shares)                   0      
Outstanding at end of period (in shares)                   1,323,587 1,348,437    
Expected to vest, end of period (in shares)                   125,000      
Exercisable, end of period (in shares)                   998,587      
Weighted Average Exercise Price Per Share [Roll Forward]                          
Outstanding at beginning of period (in dollars per share) | $ / shares                   $ 7.79      
Granted (in dollars per share) | $ / shares                   0      
Expired (in dollars per share) | $ / shares                   0      
Exercised (in dollars per share) | $ / shares                   5.90      
Forfeited (in dollars per share) | $ / shares                   0      
Outstanding at end of period (in dollars per share) | $ / shares                   7.82 $ 7.79    
Expected to vest, end of period (in dollars per share) | $ / shares                   12.26      
Exercisable, end of period (in dollars per share) | $ / shares                   $ 8.15      
Weighted Average Remaining Contractual Life [Abstract]                          
Outstanding, weighted average remaining contractual life                   4 years 2 months 12 days      
Expected to vest, weighted average remaining contractual life                   6 years 1 month 6 days      
Exercisable, weighted average remaining contractual life                   4 years 7 months 6 days      
Intrinsic Value [Abstract]                          
Outstanding, Intrinsic value | $                   $ 7,518,000      
Expected to vest, Intrinsic value | $                   155,000      
Exercisable, Intrinsic value | $                   $ 5,342,000      
Options and warrants shares to purchase in the money (in shares)                   1,300,000      
Weighted average grant date fair value of options (in dollars per share) | $ / shares                   $ 0 $ 0 $ 0  
Aggregate intrinsic value of options exercised | $                   $ 164,000 $ 237,000 $ 2,300,000  
Cash received upon exercise of options | $                   $ 25,000 $ 11,000 $ 123,000  
Shares [Roll Forward]                          
Non-vested, beginning of period (in shares)                   492,500      
Granted (in shares)                   0      
Forfeited (in shares)                   0      
Vested (in shares)                   (167,500)      
Non-vested, end of period (in shares)                   325,000 492,500    
Weighted Average Grant-Date Fair Value Per Share [Roll Forward]                          
Non-vested, at beginning of period (in dollars per share) | $ / shares                   $ 8.25      
Granted (in dollars per share) | $ / shares                   0 $ 0 $ 0  
Forfeited (in dollars per share) | $ / shares                   0      
Vested (in dollars per share) | $ / shares                   11.04      
Non-vested, end of period (in dollars per share) | $ / shares                   $ 6.81 $ 8.25    
Fair value of options vested in period | $                   $ 1,849,000      
Unrecognized compensation cost related to non-vested share-based compensation | $                   $ 400,000      
Weighted average recognition period                   2 months 12 days      
Non-Employee Director [Member] | Stock Options [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 0 $ 0 $ 9,000  
Exercise price (in dollars per share) | $ / shares               $ 2.82          
Vesting period                   5 years      
Expected dividends | $             $ 0            
Stock Options [Roll Forward]                          
Granted (in shares)             500,000            
Weighted Average Exercise Price Per Share [Roll Forward]                          
Granted (in dollars per share) | $ / shares               $ 2.82          
Shares [Roll Forward]                          
Granted (in shares)             500,000            
Non-Employee Director [Member] | Stock Options [Member] | Minimum [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Expected volatility             338.00%            
Expected term (in years)             5 years            
Risk free interest rate             2.37%            
Non-Employee Director [Member] | Stock Options [Member] | Maximum [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Expected volatility             467.00%            
Expected term (in years)             10 years            
Risk free interest rate             3.68%            
Director Joseph Palm [Member] | Stock Options [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Options awarded, term                   10 years      
Exercise price (in dollars per share) | $ / shares       $ 3.52                  
Vesting period                   4 years 8 months 1 day      
Share lots vesting (in shares)                   20,000      
Stock Options [Roll Forward]                          
Granted (in shares)       80,000                  
Weighted Average Exercise Price Per Share [Roll Forward]                          
Granted (in dollars per share) | $ / shares       $ 3.52                  
Shares [Roll Forward]                          
Granted (in shares)       80,000                  
Director Joseph Palm [Member] | Stock Options [Member] | Stock Options Issued on September 25, 2011 [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 0 27,000 65,000  
Director John Townsend [Member] | Stock Options [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 0 27,000 80,000  
Options awarded, term                   10 years      
Exercise price (in dollars per share) | $ / shares         $ 4.09                
Vesting percentage         20.00%                
Vesting period                   5 years      
Stock Options [Roll Forward]                          
Granted (in shares)         100,000                
Weighted Average Exercise Price Per Share [Roll Forward]                          
Granted (in dollars per share) | $ / shares         $ 4.09                
Shares [Roll Forward]                          
Granted (in shares)         100,000                
Key Employees [Member] | Stock Options [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 0 0 40,000  
Options awarded, term                   10 years      
Exercise price (in dollars per share) | $ / shares           $ 4.86              
Vesting percentage           25.00%              
Vesting period                   4 years      
Expected dividends | $           $ 0              
Stock Options [Roll Forward]                          
Granted (in shares)           391,000              
Weighted Average Exercise Price Per Share [Roll Forward]                          
Granted (in dollars per share) | $ / shares           $ 4.86              
Shares [Roll Forward]                          
Granted (in shares)           391,000              
Key Employees [Member] | Stock Options [Member] | Minimum [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Expected volatility           96.00%              
Expected term (in years)           5 years              
Risk free interest rate           1.26%              
Key Employees [Member] | Stock Options [Member] | Maximum [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Expected volatility           413.00%              
Expected term (in years)           10 years              
Risk free interest rate           3.34%              
Director Gary Adams [Member] | Stock Options [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 100,000 120,000 120,000  
Options awarded, term                   10 years      
Exercise price (in dollars per share) | $ / shares     $ 7.14                    
Vesting percentage     20.00%                    
Vesting period                   5 years      
Expected volatility     87.00%                    
Expected dividends | $     $ 0                    
Expected term (in years)     6 years 6 months                    
Risk free interest rate     0.92%                    
Stock Options [Roll Forward]                          
Granted (in shares)     100,000                    
Weighted Average Exercise Price Per Share [Roll Forward]                          
Granted (in dollars per share) | $ / shares     $ 7.14                    
Shares [Roll Forward]                          
Granted (in shares)     100,000                    
Mr. Hatem El Khalidi [Member] | Stock Options [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 0 49,000 97,000  
Exercise price (in dollars per share) | $ / shares                 $ 3.40        
Number of options awarded | Option                 2        
Compensation expense reversed | $                         $ 413,000
Stock Options [Roll Forward]                          
Granted (in shares)                 200,000        
Weighted Average Exercise Price Per Share [Roll Forward]                          
Granted (in dollars per share) | $ / shares                 $ 3.40        
Shares [Roll Forward]                          
Granted (in shares)                 200,000        
Simon Upfill-Brown [Member] | Stock Options [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 52,000 126,000 126,000  
Options awarded, term                   10 years      
Exercise price (in dollars per share) | $ / shares   $ 7.71                      
Vesting percentage   25.00%                      
Vesting period                   4 years      
Expected volatility   85.00%                      
Expected dividends | $   $ 0                      
Expected term (in years)   6 years 3 months                      
Risk free interest rate   1.33%                      
Stock Options [Roll Forward]                          
Granted (in shares)   90,000                      
Weighted Average Exercise Price Per Share [Roll Forward]                          
Granted (in dollars per share) | $ / shares   $ 7.71                      
Shares [Roll Forward]                          
Granted (in shares)   90,000                      
Various Employees [Member] | Stock Options [Member]                          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                          
Compensation expense | $                   $ 1,109,000 $ 1,108,000 $ 1,108,000  
Options awarded, term                   10 years      
Exercise price (in dollars per share) | $ / shares $ 12.26                        
Vesting percentage 25.00%                        
Vesting period                   4 years      
Expected volatility 84.00%                        
Expected dividends | $ $ 0                        
Expected term (in years) 6 years 3 months                        
Risk free interest rate 1.95%                        
Stock Options [Roll Forward]                          
Granted (in shares) 500,000                        
Weighted Average Exercise Price Per Share [Roll Forward]                          
Granted (in dollars per share) | $ / shares $ 12.26                        
Shares [Roll Forward]                          
Granted (in shares) 500,000