Note 11 - Fair Values (Details) - USD ($)		Mar. 31, 2016	Dec. 31, 2015
Note 11 - Fair Values (Details) [Line Items]
Available-for-sale Securities	[1]	$ 343,805,000	$ 346,992,000
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group, Mortgage		500,000	1,300,000
Available-for-sale Securities [Member]
Note 11 - Fair Values (Details) [Line Items]
Valuation Allowances and Reserves, Balance		0	$ 0
Fair Value, Inputs, Level 1 [Member]
Note 11 - Fair Values (Details) [Line Items]
Available-for-sale Securities		$ 0

[1] See Note 11 for a description of the fair value hierarchy as well as a disclosure of levels for classes of financial assets and liabilities.