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STOCK BASED COMPENSATION. (Tables)
 12 Months Ended
Dec. 31, 2018
Share-based Payment Arrangement [Abstract]  
Schedule of option activity

Summaries of the status of Company's stock option plans as of December 31, 2018 and 2017 and of changes in options outstanding under the Company's plans during those years are as follows (number of shares in thousands):

 

   Years Ended December 31, 
   2018   2017 
   Number
of Shares		   Weighted Average Exercise Price   Number
of Shares		   Weighted Average
Exercise Price		 
Outstanding at beginning of year   230   $4.18    240   $4.18 
Exercised/cancelled   (1)   12.90    (10)   3.74 
Outstanding at end of year   229   $4.15    230   $4.18 
Options exercisable at end of year   229   $4.15    230   $4.18 
Schedule of stock options by exercise price range

Stock options outstanding as of December 31, 2018 were as follows (number of shares in thousands): 

 

    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    219    4.47   $3.74    219   $3.74 
$12.90    10    2.59   $12.90    10   $12.90 
Schedule of unvested restricted stock activity

The Company granted to certain employees and directors shares of restricted stock under its 2006 and 2016 Stock Incentive Plans. A summary of unvested restricted stock activity is as follows (shares in thousands):

 

   Number of
Shares		   Weighted Average Grant Date Fair Value Per Share 
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 
Issued   664   $6.65 
Vested   (480)  $7.30 
Canceled   (37)  $6.08 
Unvested at December 31, 2017   1,077   $6.31 
Issued   1,175   $3.07 
Vested   (540)  $7.69 
Canceled   (77)  $7.14 
Unvested at December 31, 2018   1,635   $3.49 
Schedule of stock-based compensation expense

Stock-based compensation expense related to employee and non-employee restricted stock and option grants recognized in selling, general and administrative expenses, were as follows (in thousands):

 

   Years Ended December 31, 
   2018   2017   2016 
Employees  $2,905   $3,303   $2,173 
Non-employees   533    525    443 
Total stock-based compensation expense  $3,438   $3,828   $2,616