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RESTRICTED CASH (Details) - USD ($)
Mar. 31, 2017
Dec. 31, 2016
Restricted cash    
Restricted cash $ 361,000 $ 361,000
Security deposit related to credit card account    
Restricted cash    
Restricted cash $ 50,000  
Standby letter of credit in favor of a landlord    
Restricted cash    
Restricted cash   $ 311,000