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Note 3 - Loans - Summary of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018		Jun. 30, 2018	Dec. 31, 2017
Loans	$ 574,954	$ 542,856		$ 530,933
Allowance for loan losses	(4,995)	(5,009)		(5,039)	$ (5,326)
Loans, net	569,959	537,847	[1]
Commercial and Industrial Loans [Member]
Loans	49,353	44,605		40,943
Allowance for loan losses	(516)	(464)		(425)	(418)
Consumer and Other Loans [Member]
Loans	16,130	16,886		17,177
Allowance for loan losses	(768)	(929)		(753)	(771)
Construction and Land Development [Member] | Real Estate 1 [Member]
Loans	46,281	45,867		37,350
Allowance for loan losses	(540)	(561)		(406)	(414)
Secured by Multi-family Residential Properties [Member] | Real Estate 1 [Member]
Loans	225,820	215,945		211,101
Allowance for loan losses	(778)	(895)		(791)	(775)
Other Real Estate Loans [Member] | Real Estate 1 [Member]
Loans	237,370	219,553		224,362
Allowance for loan losses	$ (2,393)	(2,160)		$ (2,664)	$ (2,948)
Consumer and Other Loans [Member] | Consumer and Other Loans [Member]
Loans		$ 16,886
[1] Derived from audited consolidated financial statements.

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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 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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