Note 4 - Loans Receivable (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Receivables [Abstract]
Impaired Financing Receivable, Average Recorded Investment	$ 32,951,000	$ 33,687,000	$ 40,800,000
Impaired Financing Receivable, Interest Income, Accrual Method	614,000	1,181,000	1,600,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	980,000	488,000	699,000
Loans and Leases Receivable, Related Parties	$ 8,753,000	$ 8,762,000	$ 9,128,000	$ 16,941,000