Note 15 - Fair Values (Details) - Fair Value of Financial Instruments (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financial assets
Securities available-for-sale	$ 204,010	$ 216,640
Securities held-to-maturity	35,399
Financial liabilities
Federal Home Loan Bank advances	75,000
Fair Value, Inputs, Level 1 [Member]
Financial assets
Cash and cash equivalents	74,568	58,515
Federal Home Loan Bank Stock	4,472	4,531
Fair Value, Inputs, Level 2 [Member]
Financial assets
Securities available-for-sale	204,010	216,640
Securities held-to-maturity	35,399	34,025
Financial liabilities
Deposits	761,951	746,332
Federal Home Loan Bank advances	75,000	75,000
Subordinated debenture	8,480	8,754
Derivatives	2,946	2,890
Fair Value, Inputs, Level 3 [Member]
Financial assets
Portfolio loans, net	603,418	591,315
Promissory note due from the former mortgage subsidiary		2,607
Reported Value Measurement [Member]
Financial assets
Cash and cash equivalents	74,568	58,515
Securities available-for-sale	204,010	216,640
Securities held-to-maturity	36,985	36,696
Portfolio loans, net	597,621	584,126
Promissory note due from the former mortgage subsidiary		2,607
Federal Home Loan Bank Stock	4,472	4,531
Financial liabilities
Deposits	761,711	746,293
Federal Home Loan Bank advances	75,000	75,000
Subordinated debenture	15,465	15,465
Derivatives	2,946	2,890
Estimate of Fair Value Measurement [Member]
Financial assets
Cash and cash equivalents	74,568	58,515
Securities available-for-sale	204,010	216,640
Securities held-to-maturity	35,399	34,025
Portfolio loans, net	603,418	591,315
Promissory note due from the former mortgage subsidiary		2,607
Federal Home Loan Bank Stock	4,472	4,531
Financial liabilities
Deposits	761,951	746,332
Federal Home Loan Bank advances	75,000	75,000
Subordinated debenture	8,480	8,754
Derivatives	$ 2,946	$ 2,890