REPURCHASE AGREEMENTS (Details Textual) - USD ($)	Dec. 31, 2014	Dec. 31, 2013
Repurchase Agreements [Line Items]
Repurchase agreements	$ 594,877,852	$ 412,172,000
Repurchase Agreements Weighted Average Interest Rate	0.99%	0.57%
Repurchase Agreements, Aggregate Borrowing Limit, Amount	$ 375,000,000
Non Agency Linked Transactions [Member]
Repurchase Agreements [Line Items]
Repurchase agreements	85,497,000	$ 61,181,000
Multi Family MBS [Member]
Repurchase Agreements [Line Items]
Repurchase agreements	$ 63,796,000

Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(m)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 10
-Section 55
-Paragraph 51
-URI http://asc.fasb.org/extlink&oid=51816387&loc=d3e101761-111710

Name:	us-gaap_SecuredDebtRepurchaseAgreements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant