Note 5 - Real Estate Owned (REO), Held for Sale (Detail) - REO, Held for Sale Activity and Changes in the Net Realizable Values (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011
REO, held for sale	$ 48,406	$ 54,206
Number of properties, December 31	4	9	2	38	2	3
Acquisitions		15,959
Dispositions	(30,003)	(26,600)
Improvements/betterments	447	160
Designated from REO held as investment		8,929
Designated to REO held as investment	(18,337)
Change in net book value	(513)	(4,248)
REO, held for sale		48,406
Single Family [Member]
REO, held for sale		4,334
Multi-family [Member]
REO, held for sale		16,672
Commercial [Member]
Number of properties, December 31	3	3
REO, held for sale		$ 27,400