Note 4 - Schedule of Investment Securities (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
US Treasury and Government [Member]
Available-for-sale Securities, Amortized Cost Basis	$ 24,176,000	$ 49,612,000
Available for sale securities, gross unrealized gains	31,000	5,000
Available for sale securities, gross unrealized losses	0	(117,000)
Available-for-sale Securities	24,207,000	49,500,000
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale Securities, Amortized Cost Basis	68,769,000	63,276,000
Available for sale securities, gross unrealized gains	1,316,000	717,000
Available for sale securities, gross unrealized losses	(21,000)	(60,000)
Available-for-sale Securities	70,064,000	63,933,000
Held to maturity, at amortized cost	1,038,000
Held to maturity, fair value	1,038,000
Collateralized Mortgage Backed Securities [Member]
Available-for-sale Securities, Amortized Cost Basis	95,634,000	85,072,000
Available for sale securities, gross unrealized gains	1,632,000	647,000
Available for sale securities, gross unrealized losses	(26,000)	(567,000)
Available-for-sale Securities	97,240,000	85,152,000
Available-for-sale Securities, Amortized Cost Basis	188,579,000	197,960,000
Available for sale securities, gross unrealized gains	2,979,000	1,369,000
Available for sale securities, gross unrealized losses	(47,000)	(744,000)
Available-for-sale Securities	191,511,000	198,585,000
Held to maturity, at amortized cost	1,038,000	$ 0
Held to maturity, fair value	$ 1,038,000

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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