Note 8 - Servicing Rights (Details) - Servicing Rights Activity (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Mortgage Servicing Rights [Member]
Servicing Asset at Amortized Cost [Line Items]
Servicing rights portfolio, net of valuation allowance, beginning of period	$ 2,431	$ 2,584	$ 2,586
Servicing rights portfolio, net of valuation allowance, end of period	2,248	2,431	2,584
Capitalized servicing rights	390	612	864
Servicing rights portfolio amortization and impairment	(573)	(765)	(866)
SBA Servicing Rights [Member]
Servicing Asset at Amortized Cost [Line Items]
Servicing rights portfolio, net of valuation allowance, beginning of period	64	39
Servicing rights portfolio, net of valuation allowance, end of period	77	64	39
Capitalized servicing rights	31	47	40
Servicing rights portfolio amortization and impairment	$ (18)	$ (22)	$ (1)