Note 6 - Loans Receivable and Allowance for Loan Losses - Gross Loans by Major Categories (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Loans receivable	$ 1,477,237	$ 1,436,614
Deferred fees	(151)	(16)
Allowance for loan losses	(7,900)	(8,615)
Net loans receivable	1,469,186	1,427,983
Commercial Real Estate Portfolio Segment [Member]
Loans receivable	527,004	515,738
Construction and Land Development Portfolio Segment [Member]
Loans receivable	124,124	121,042
Commercial Portfolio Segment [Member]
Loans receivable	204,637	200,423
Owner Occupied Real Estate [Member]
Loans receivable	376,845	367,895
Consumer Portfolio Segment [Member]
Loans receivable	92,879	91,152
Residential Portfolio Segment [Member]
Loans receivable	$ 151,748	$ 140,364

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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