Note 4 - Loans and Allowance for Loan Losses - Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans	$ 493,499	$ 463,905
Less undisbursed portion of loans in process	(23,081)	(26,675)
Principal loan balance	470,418	437,230
Deferred loan origination fees and costs, net	1,137	1,095
Allowance for loan losses	(5,061)	(4,065)	$ (3,634)	$ (3,386)
Loans, net	466,494	434,260
Real Estate Mortgage Portfolio Segment [Member] \| Residential Loan [Member]
Loans	131,959	136,445
Allowance for loan losses	(867)	(693)	(219)	(380)
Real Estate Mortgage Portfolio Segment [Member] \| Land Loan [Member]
Loans	19,185	22,607
Principal loan balance	19,185	22,607
Deferred loan origination fees and costs, net	15	18
Allowance for loan losses	(163)	(162)	(133)	(56)
Real Estate Mortgage Portfolio Segment [Member] \| Residential Construction [Member]
Loans	35,554	31,459
Real Estate Mortgage Portfolio Segment [Member] \| Commercial Real Estate Loan [Member]
Loans	121,563	107,445
Principal loan balance	121,563	107,445
Deferred loan origination fees and costs, net	(62)	(38)
Allowance for loan losses	(1,623)	(1,401)	(1,622)	(1,670)
Real Estate Mortgage Portfolio Segment [Member] \| Commercial Real Estate Construction [Member]
Loans	20,086	20,591
Commercial Portfolio Segment [Member]
Loans	45,307	36,297
Principal loan balance	45,307	36,297
Deferred loan origination fees and costs, net
Allowance for loan losses	(595)	(459)	(291)	(198)
Consumer Portfolio Segment [Member] \| Home Equity and Second Mortgage [Member]
Loans	54,677	51,731
Principal loan balance	54,677	51,731
Deferred loan origination fees and costs, net	1,067	1,025
Allowance for loan losses	(515)	(443)	(710)	(683)
Consumer Portfolio Segment [Member] \| Automobile Loan [Member]
Loans	46,443	42,124
Consumer Portfolio Segment [Member] \| Loans Secured by Deposits [Member]
Loans	1,372	1,399
Consumer Portfolio Segment [Member] \| Unsecured Loan [Member]
Loans	3,653	3,638
Consumer Portfolio Segment [Member] \| Other Consumer Loan [Member]
Loans	13,700	10,169
Principal loan balance	65,168	57,330
Deferred loan origination fees and costs, net
Allowance for loan losses			$ (414)	$ (319)

Represents the loans and leases receivable principal balance.

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Amount of undisbursed portion of the loan receivable balance (loans in process). Excludes loans and leases covered under loss sharing agreements.

+ References

No definition available.

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Amount before allowance and after 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.

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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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Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield. Excludes amounts for loans and leases covered under loss sharing agreements.

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