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STOCK-BASED COMPENSATION Stock Options Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Shares Authorized 6,000,000    
Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate 1.86%    
Shares:      
Outstanding at beginning of year 155,000 390,500 2,219,625
Granted 1,600,000 0 0
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price $ 2.29 $ 0.00 $ 0.00
Exchanged 0 0 (1,618,000) [1]
Forfeited (20,000) (114,500) (136,125)
Expired (69,000) (121,000) (75,000)
Outstanding at end of year 1,666,000 155,000 390,500
Vested or expected to vest 1,666,000    
Exercisable at end of period 66,000    
Weighted Average Exercise Price per Share:      
Outstanding at beginning of period $ 29.88 $ 27.26 $ 31.51
Exchanged 0.00 0.00 31.54 [1]
Forfeited 23.12 30.87 33.36
Expired 28.23 20.48 49.71
Oustanding at end of period 3.53 $ 29.88 $ 27.26
Vested or expected to vest 3.53    
Exercisable at end of period $ 33.66    
Weighted Average Remaining Contractual Term (years), outstanding 9 years 25 days 11 months 3 days  
Weighted Average Remaining Contractual Term (years), Vested or expected to vest 9 years 25 days    
Weighted Average Remaining Contractual Term (years), exercisable 5 months 3 days    
Aggregate Intrinsic Value, outstanding $ 640 $ 0  
Aggregate Intrinsic Value, Vested or expected to vest 640    
Aggregate Intrinsic Value, exercisable $ 0    
Maximum life of issued options 10 years    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 2,100    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 3 years 5 months    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term 6 years 3 months 1 day    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate 75.18%    
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 0.00%    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block] 1.54    
Restricted Stock Units (RSUs) [Member]      
Weighted Average Exercise Price per Share:      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 3,800    
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 2 years 8 months 8 days    
Minimum [Member] | Stock Option [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 1 year    
Minimum [Member] | Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 1 year    
Maximum [Member] | Stock Option [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 4 years    
Maximum [Member] | Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 4 years    
[1] Options tendered in exchange for restricted stock units pursuant to an employee option exchange program completed in 2013.