Annual report pursuant to Section 13 and 15(d)

14. STOCK BASED COMPENSATION (Tables)

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14. STOCK BASED COMPENSATION (Tables)
12 Months Ended
Dec. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Option activity
    Years Ended December 31,  
    2015     2014  
    Number
of Shares
    Weighted Average Exercise Price     Number
of Shares
    Weighted Average
Exercise Price
 
Outstanding at beginning of year     241     $ 6.91       241     $ 6.91  
Expired     (1 )     867.24              
Outstanding at end of year     240     $ 4.18       241     $ 6.91  
Options exercisable at end of year     164     $ 4.18       89     $ 11.59  
Stock options by exercise price range
         

Options Outstanding

      Options Exercisable  
 

Range of
Exercise Prices

     

Number

Outstanding

     

Weighted Average Remaining Contractual Life (yrs.)

     

Weighted Average

Exercise

Price

     

Number Exercisable

     

Weighted

Average

Exercise

Price

 
                                             
$ 3.74       229       7.47     $ 3.74       153     $ 3.74  
$ 12.90       11       5.59     $ 12.90       11     $ 12.90  
Unvested restricted stock activity
      Number of
Shares
    Weighted
Average
Grant Date
Fair Value
Per Share
 
  Unvested at December 31, 2012       16     $ 50.40  
  Issued       615     $ 4.56  
  Vested       (142 )   $ 7.85  
  Canceled       (17 )   $ 6.20  
  Unvested at December 31, 2013       472     $ 5.07  
  Issued       155     $ 15.23  
  Vested       (227 )   $ 5.79  
  Canceled       (10 )   $ 4.30  
  Unvested at December 31, 2014       390     $ 8.71  
  Issued       307     $ 10.16  
  Vested       (220 )   $ 7.94  
  Canceled       (14 )   $ 10.08  
  Unvested at December 31, 2015       463     $ 10.00  
Stock-based compensation expense
    Years Ended December 31,  
    2015     2014     2013  
Employees   $ 1,694     $ 1,493     $ 1,333  
Non-employees     325       345       391  
Total stock-based compensation expense   $ 2,019     $ 1,838     $ 1,724