Note 8 - Repurchase Agreements (Tables)

3 Months Ended

Mar. 31, 2013

Initial [Member]

Schedule of Repurchase Agreements [Table Text Block]

	Repurchase Agreements (in thousands)		Weighted Average Contractual Rate			Weighted Average Maturity in days		Haircut for Repurchase Agreements (1)
Agency Securities	$	1,006,136		0.43	%		29		4.74	%
Non-Agency Securities		102,806		2.03	%		32		24.78	%
Total	$	1,108,942		0.58	%		29		7.0	%

	Repurchase Agreements (in thousands)		Weighted Average Contractual Rate			Weighted Average Maturity in days		Haircut for Repurchase Agreements (1)
Agency Securities	$	1,033,496		0.48	%		43		4.83	%
Non-Agency Securities		102,334		2.07	%		25		22.35	%
Total	$	1,135,830		0.62	%		41		6.4	%

Additional [Member]

Schedule of Repurchase Agreements [Table Text Block]

	March 31, 2013		December 31, 2012
	(in thousands)
Within 30 days	$	536,075	$	280,435
31 days to 60 days		552,091		629,311
61 days to 90 days		20,776		226,084
Greater than 90 days		-		-
Total	$	1,108,942	$	1,135,830