Note 2 - Investment Securities (Details) - Available-for-sale Securities - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Note 2 - Investment Securities (Details) - Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	$ 53,877	$ 51,944
Securities available-for-sale, gross unrealized gains	1,056	896
Securities available-for-sale, gross unrealized losses	(176)	(296)
Securities available-for-sale	54,757	52,544
US Government Agencies Debt Securities [Member]
Note 2 - Investment Securities (Details) - Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	28,507	26,385
Securities available-for-sale, gross unrealized gains	330	242
Securities available-for-sale, gross unrealized losses	(99)	(191)
Securities available-for-sale	28,738	26,436
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Note 2 - Investment Securities (Details) - Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	8,353	8,803
Securities available-for-sale, gross unrealized gains	65	60
Securities available-for-sale, gross unrealized losses	(45)	(90)
Securities available-for-sale	8,373	8,773
US States and Political Subdivisions Debt Securities [Member]
Note 2 - Investment Securities (Details) - Available-for-sale Securities [Line Items]
Securities available-for-sale, amortized cost	17,017	16,756
Securities available-for-sale, gross unrealized gains	661	594
Securities available-for-sale, gross unrealized losses	(32)	(15)
Securities available-for-sale	$ 17,646	$ 17,335

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

+ References

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-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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