Note 18 - Concentration of Third-Party Mortgage Purchasers (Tables)

12 Months Ended

Dec. 31, 2014

Risks and Uncertainties [Abstract]

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	Year Ended December 31,
	2014			2013			2012
Wells Fargo Funding, Inc.		37	%		40	%		58	%
PennyMac Loan Services, LLC		23	%		7	%		0	%
JP Morgan Chase Bank, N.A.		20	%		46	%		36	%
Fannie Mae		10	%		4	%		4	%