Note 4 - Loans Receivable - Gross Loans by Major Categories (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Loans receivable	$ 1,162,049	$ 965,044
Deferred costs (fees)	229	(72)
Allowance for loan losses	(8,599)	(9,155)
Net loans receivable	1,153,679	955,817
Commercial Real Estate Portfolio Segment [Member]
Loans receivable	433,304	378,519
Construction and Land Development Portfolio Segment [Member]
Loans receivable	104,617	61,453
Commercial Portfolio Segment [Member]
Loans receivable	173,343	174,744
Owner Occupied Real Estate [Member]
Loans receivable	309,838	276,986
Consumer Portfolio Segment [Member]
Loans receivable	76,183	63,660
Residential Portfolio Segment [Member]
Loans receivable	$ 64,764	$ 9,682

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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