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Note 2 - Investment Securities (Details) - Investment Securities - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	$ 30,829	$ 34,135
Available-for-sale securities, gross unrealized losses	(188)	(453)
Available-for-sale securities, gross unrealized gains	78
Available-for-sale securities	30,719	33,682
US Government Agencies Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	7,500	7,500
Available-for-sale securities, gross unrealized losses		(91)
Available-for-sale securities, gross unrealized gains	1
Available-for-sale securities	7,501	7,409
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	14,329	17,635
Available-for-sale securities, gross unrealized losses	(127)	(298)
Available-for-sale securities	14,202	17,337
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, amortized cost	9,000	9,000
Available-for-sale securities, gross unrealized losses	(61)	(64)
Available-for-sale securities, gross unrealized gains	77
Available-for-sale securities	$ 9,016	$ 8,936

X

- Definition

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

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