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, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Option activity
    Years Ended December 31,  
    2016     2015  
    Number
of Shares
    Weighted
Average
Exercise
Price
    Number
of Shares
    Weighted
Average
Exercise
Price
 
Outstanding at beginning of year     240     $ 4.18       241     $ 6.91  
Expired                 (1 )     867.24  
Outstanding at end of year     240     $ 4.18       240     $ 4.18  
Options exercisable at end of year     240     $ 4.18       164     $ 4.18  
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   6.47   $3.74   229   $3.74
$12.90   11   4.59   $12.90   11   $12.90
Unvested restricted stock activity
    Number of
Shares
    Weighted
Average
Grant Date
Fair Value
Per Share
 
Unvested at December 31, 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  
Issued     742     $ 5.24  
Vested     (250 )   $ 9.01  
Canceled     (25 )   $ 6.24  
Unvested at December 31, 2016     930     $ 6.57  
Stock-based compensation expense
    Years Ended December 31,  
    2016     2015     2014  
Employees   $ 2,173     $ 1,694     $ 1,493  
Non-employees     443       325       345  
Total stock-based compensation expense   $ 2,616     $ 2,019     $ 1,838