RELATED-PARTY TRANSACTIONS - Transactions with The Palisades Group (Details) - USD ($)			4 Months Ended	6 Months Ended	12 Months Ended
	Apr. 06, 2015	Jul. 01, 2013	Dec. 31, 2013	Jun. 27, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Related Party Transaction [Line Items]
Expenses from transactions with related parties	$ 263,000
COR Securities Holding, Inc. (CORSHI) \| Rent Payments Reimbursement
Related Party Transaction [Line Items]
Expenses from transactions with related parties			$ 40,000
COR Securities Holding, Inc. (CORSHI) \| Security Deposit
Related Party Transaction [Line Items]
Expenses from transactions with related parties			$ 34,000
COR Securities Holding, Inc. (CORSHI) \| Intercompany Transaction
Related Party Transaction [Line Items]
Expenses from transactions with related parties				$ 34,000
COR Securities Holding, Inc. (CORSHI) \| Leasing Costs Payments
Related Party Transaction [Line Items]
Expenses from transactions with related parties				$ 58,000
Subsidiaries \| Immediate Family Member of Chief Executive Officer, Brother \| Consulting Agreement
Related Party Transaction [Line Items]
Consulting agreement term		5 years
Consulting agreement minimum payment		$ 30,000
Consulting agreement payment		$ 600,000
Expenses from transactions with related parties					$ 30,000	$ 1,200,000	$ 121,000