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COMMITMENTS AND CONTINGENCIES (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
COMMITMENTS AND CONTINGENCIES.      
Future minimum payments under operating lease $ 529,000    
Rent expense under operating leases 1,422,000 1,474,000 1,311,000
Indemnifications to Officers and Directors
     
COMMITMENTS AND CONTINGENCIES      
Indemnification obligations to officers and directors $ 0 $ 0  
Severance Plan
     
COMMITMENTS AND CONTINGENCIES      
Period within which employee is terminated by entity without cause following a change of control 12 months    
Period within which no comparable employment is offered by the entity following a change of control 30 days    
Period within which employee resigns following a change of control due to material change in terms of employment 12 months    
Severance Plan | Minimum
     
COMMITMENTS AND CONTINGENCIES      
Period of base salary to be considered for severance payments 2 months    
Severance Plan | Maximum
     
COMMITMENTS AND CONTINGENCIES      
Period of base salary to be considered for severance payments 18 months