RESIDENTIAL MORTGAGE LOAN SECURITIZATION TRUSTS (Details Textual) (Residential Mortgage [Member], USD $)	3 Months Ended
Mar. 31, 2015
Residential Mortgage [Member]
Balance Sheet
Investment of Multi-Family Mortgage Backed Securities MBS, Net Carrying Value	$ 122,385,094
Multi-family loans held in securitization trusts, unpaid principal balance	535,207,032
Mulit-family securitized debt obligations, unpaid principal balance	$ 535,207,032

Amount of net carrying value or investment of Multi-Family Mortgage Backed Securities (MBS) as of balance sheet date.

No definition available.

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Namespace Prefix:	oaks_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant