Note 4 - Loans Receivable (Details) - Gross Loans by Major Categories (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 782,379	$ 679,549
Deferred costs (fees)	(439)	(238)
Allowance for loan losses	(11,536)	(12,263)
Net loans receivable	770,404	667,048
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	379,259	342,794
Commercial Real Estate Construction Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	29,861	23,977
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	145,113	118,209
Owner Occupied Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	188,025	160,229
Consumer Other Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	39,713	31,981
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans receivable	$ 408	$ 2,359

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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