Note 6 - Loans (Details) - Average Recorded Investment and Interest Income Recognized on Impaired Loans by Loan Class (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Note 6 - Loans (Details) - Average Recorded Investment and Interest Income Recognized on Impaired Loans by Loan Class [Line Items]
Average Recorded Investment	$ 35,218	$ 46,885	$ 37,344	$ 47,152
Interest Income Recognized	82	112	336	334
Commercial Portfolio Segment [Member]
Note 6 - Loans (Details) - Average Recorded Investment and Interest Income Recognized on Impaired Loans by Loan Class [Line Items]
Average Recorded Investment	6,511	10,606	5,848	6,665
Interest Income Recognized	13	38	15	58
Commercial Real Estate Other Receivable [Member]
Note 6 - Loans (Details) - Average Recorded Investment and Interest Income Recognized on Impaired Loans by Loan Class [Line Items]
Average Recorded Investment	15,326	20,954	18,060	25,413
Interest Income Recognized	31	45	213	200
Residential One To Four Family [Member]
Note 6 - Loans (Details) - Average Recorded Investment and Interest Income Recognized on Impaired Loans by Loan Class [Line Items]
Average Recorded Investment	12,197	14,092	12,179	14,285
Interest Income Recognized	30	18	83	58
Residential Real Estate and Home Equities [Member]
Note 6 - Loans (Details) - Average Recorded Investment and Interest Income Recognized on Impaired Loans by Loan Class [Line Items]
Average Recorded Investment	1,155	1,233	1,238	789
Interest Income Recognized	8	11	25	18
Consumer Portfolio Segment [Member]
Note 6 - Loans (Details) - Average Recorded Investment and Interest Income Recognized on Impaired Loans by Loan Class [Line Items]
Average Recorded Investment	$ 29		$ 19