Note 4 - Allowance for Loan Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Beginning balance	$ 5,009	$ 5,326
Charge-offs	(884)	(1,169)
Recoveries	359	252
Provision for (recovery of) loan losses	450	600
Ending balance	4,934	5,009
Individually evaluated for impairment, allowance	33	243
Collectively evaluated for impairment, allowance	4,901	4,766
Loans	574,346	542,856
Individually evaluated for impairment, loans	1,459	3,436
Collectively evaluated for impairment, loans	572,887	539,420
Real Estate 1 [Member] \| Construction and Land Development [Member]
Beginning balance	561	414
Charge-offs	(2)
Recoveries	50
Provision for (recovery of) loan losses	(145)	147
Ending balance	464	561
Individually evaluated for impairment, allowance	22	71
Collectively evaluated for impairment, allowance	442	490
Loans	43,164	45,867
Individually evaluated for impairment, loans	367	327
Collectively evaluated for impairment, loans	42,797	45,540
Real Estate 1 [Member] \| Secured by Multi-family Residential Properties [Member]
Beginning balance	895	775
Charge-offs	(58)	(55)
Recoveries	9	13
Provision for (recovery of) loan losses	(70)	162
Ending balance	776	895
Individually evaluated for impairment, allowance	11	172
Collectively evaluated for impairment, allowance	765	723
Loans	229,438	215,945
Individually evaluated for impairment, loans	630	663
Collectively evaluated for impairment, loans	228,808	215,282
Real Estate 1 [Member] \| Other Real Estate Loans [Member]
Beginning balance	2,160	2,948
Charge-offs	(27)
Recoveries	1	5
Provision for (recovery of) loan losses	162	(793)
Ending balance	2,296	2,160
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance	2,296	2,160
Loans	236,555	219,553
Individually evaluated for impairment, loans	462	2,249
Collectively evaluated for impairment, loans	236,093	217,304
Commercial and Industrial Loans [Member]
Beginning balance	464	418
Charge-offs	(2)	(10)
Recoveries	8	8
Provision for (recovery of) loan losses	92	48
Ending balance	562	464
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance	562	464
Loans	50,153	44,605
Individually evaluated for impairment, loans		197
Collectively evaluated for impairment, loans	50,153	44,408
Consumer and Other Loans [Member]
Beginning balance	929	771
Charge-offs	(795)	(1,104)
Recoveries	291	226
Provision for (recovery of) loan losses	411	1,036
Ending balance	836	929
Individually evaluated for impairment, allowance
Collectively evaluated for impairment, allowance	836	929
Loans	15,036	16,886
Individually evaluated for impairment, loans
Collectively evaluated for impairment, loans	$ 15,036	$ 16,886

Represents the amount of provision (reduction in reserve) for loan losses during the period.

No definition available.

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- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

+ References

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-Publisher FASB
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- Definition

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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- Definition

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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