Note 2 - Investment Securities (Details) - Investment Securities (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Securities available for sale:
Securities available for sale, Amortized Cost	$ 99,660
Securities available for sale, Fair Value	100,491	108,762
Securities held to maturity:
Securities available for sale, Amortized Cost	7	9
Securities available for sale, Gross Unrealized Gains	0	0
Securities available for sale, Gross Unrealized Losses	0	0
Securities available for sale, Fair Value	7	9
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Securities available for sale:
Securities available for sale, Amortized Cost	30,408	18,408
Securities available for sale, Gross Unrealized Gains	173	205
Securities available for sale, Gross Unrealized Losses	160	244
Securities available for sale, Fair Value	30,421	18,369
Securities held to maturity:
Securities available for sale, Amortized Cost		9
Securities available for sale, Gross Unrealized Gains		0
Securities available for sale, Gross Unrealized Losses		0
Securities available for sale, Fair Value		9
Agency Collateralized Mortgage Obligations [Member]
Securities available for sale:
Securities available for sale, Amortized Cost	15,813	20,486
Securities available for sale, Gross Unrealized Gains	108	96
Securities available for sale, Gross Unrealized Losses	205	341
Securities available for sale, Fair Value	15,716	20,241
US Government Agencies Debt Securities [Member]
Securities available for sale:
Securities available for sale, Amortized Cost	22,555	31,594
Securities available for sale, Gross Unrealized Gains	35	49
Securities available for sale, Gross Unrealized Losses	162	729
Securities available for sale, Fair Value	22,428	30,914
Municipal Notes [Member]
Securities available for sale:
Securities available for sale, Amortized Cost	30,884	36,200
Securities available for sale, Gross Unrealized Gains	1,172	778
Securities available for sale, Gross Unrealized Losses	135	938
Securities available for sale, Fair Value	31,921	36,040
Debt Securities [Member]
Securities available for sale:
Securities available for sale, Amortized Cost	99,660	106,688
Securities available for sale, Gross Unrealized Gains	1,488	1,128
Securities available for sale, Gross Unrealized Losses	662	2,252
Securities available for sale, Fair Value	100,486	105,564
Mutual Funds [Member]
Securities available for sale:
Securities available for sale, Amortized Cost	5	3,238
Securities available for sale, Gross Unrealized Gains	0	0
Securities available for sale, Gross Unrealized Losses	0	40
Securities available for sale, Fair Value	5	3,198
Total [Member]
Securities available for sale:
Securities available for sale, Amortized Cost	99,665	109,926
Securities available for sale, Gross Unrealized Gains	1,488	1,128
Securities available for sale, Gross Unrealized Losses	662	2,292
Securities available for sale, Fair Value	$ 100,491	$ 108,762

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

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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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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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Amount of accumulated unrealized gain on investments in debt securities classified as held-to-maturity.

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Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity.

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Fair value of investments in debt securities classified as held-to-maturity.

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