LOANS (Loans Held for Investment) (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: $ 134,517 $ 330,648
First lien loans held for sale at fair value 95,946 113,675
Total 135,992 330,930
Apidos CDO I Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 153
Total 153 153
Apidos CDO III Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 81,167
Total 0 81,167
Apidos Cinco CDO Ltd [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 134,517 249,328
Total 135,839 249,610
First Lien [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 131,281 325,726
First lien loans held for sale at fair value 1,475 282
First Lien [Member] | Apidos CDO I Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 153
First lien loans held for sale at fair value 153 0
First Lien [Member] | Apidos CDO III Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 80,196
First lien loans held for sale at fair value 0 0
First Lien [Member] | Apidos Cinco CDO Ltd [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 131,281 245,377
First lien loans held for sale at fair value 1,322 282
Second Lien [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 1,692 3,572
Second Lien [Member] | Apidos CDO I Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 0
Second Lien [Member] | Apidos CDO III Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 0
Second Lien [Member] | Apidos Cinco CDO Ltd [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 1,692 3,572
Third Lien [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 0
Third Lien [Member] | Apidos CDO I Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 0
Third Lien [Member] | Apidos CDO III Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 0
Third Lien [Member] | Apidos Cinco CDO Ltd [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 0
Defaulted First Lien [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 1,544 0
Defaulted First Lien [Member] | Apidos CDO I Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 0
Defaulted First Lien [Member] | Apidos CDO III Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 0
Defaulted First Lien [Member] | Apidos Cinco CDO Ltd [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 1,544 0
Defaulted Second Lien [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 1,350
Defaulted Second Lien [Member] | Apidos CDO I Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 0
Defaulted Second Lien [Member] | Apidos CDO III Ltd. [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: 0 971
Defaulted Second Lien [Member] | Apidos Cinco CDO Ltd [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Loans held for investment: $ 0 $ 379