Note 20 - Fair Value Measurement (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Disclosure Text Block [Abstract]
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 14,200,000	$ 17,300,000
Real Estate Owned, Valuation Allowance, Period Increase (Decrease)	195,000	204,000
Liabilities, Fair Value Disclosure, Recurring	0	0
Liabilities, Fair Value Disclosure, Nonrecurring	$ 0	$ 0