Quarterly report pursuant to Section 13 or 15(d)

STOCK INCENTIVE PLAN (Schedule of Stock Option Activity) (Details)

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STOCK INCENTIVE PLAN (Schedule of Stock Option Activity) (Details) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Shares [Roll Forward]    
Beginning Balance 1,816,204  
Granted 10,000  
Exercised (137,708)  
Forfeited or expired (54,462)  
Ending Balance 1,634,034 1,816,204
Exercisable at end of period 885,859  
Expected to Vest 710,395  
Weighted Average Exercise Price [Abstract]    
Beginning Balance $ 4.88  
Granted 6.08  
Exercised 2.16  
Forfeited or expired 12.15  
Ending Balance 4.87 $ 4.88
Exercisable at end of period 5.22  
Expected to Vest 4.46  
Weighted Average Grant Date Fair value [Abstract]    
Beginning Balance 3.39  
Granted 1.98  
Exercised 1.31  
Forfeited or expired 8.05  
Ending Balance 3.40 $ 3.39
Exercisable at end of period 3.72  
Expected to Vest $ 3.01  
Weighted Average Remaining Contractual Term [Abstract]    
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 4 years 8 months 12 days 4 years 9 months 18 days
ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2 4 years 8 months 12 days 4 years 9 months 18 days
Exercisable at end of period 3 years 7 months 6 days  
Expected to Vest 6 years  
Aggregate Intrinsic Value [Abstract]    
Beginning Balance $ 5,718  
Ending Balance 2,979 $ 5,718
Exercisable at end of period 1,365  
Expected to Vest $ 1,532