Note 6 - Loans Receivable and Allowance for Loan Losses - Gross Loans by Major Category (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Loans receivable	$ 2,645,014	$ 1,748,096
Deferred (fees) costs	(15,616)	99
Allowance for loan losses	(11,851)	(9,266)
Net loans receivable	2,617,547	1,738,929
Commercial Real Estate Portfolio Segment [Member]
Loans receivable	676,460	613,631
Construction and Land Development Portfolio Segment [Member]
Loans receivable	164,671	121,395
Commercial Portfolio Segment [Member]
Loans receivable	228,145	223,906
Owner Occupied Real Estate [Member]
Loans receivable	427,026	424,400
Consumer Portfolio Segment [Member]
Loans receivable	100,035	101,320
Residential Portfolio Segment [Member]
Loans receivable	365,279	263,444
Paycheck Protection Program CARES Act [Member]
Loans receivable	$ 683,398	$ 0

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 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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