Note 11 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2019

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

Year ended December 31,	2019			2018			2017
Current Federal income taxes	$	2,789		$	1,742		$	3,454
Current state income taxes		380			57			124
Deferred Federal income taxes (benefits)		(207	)		363			268
Deferred state income taxes (benefits)		(112	)		(105	)		—
Other		—			(85	)		—
Net provision prior to discrete tax adjustments		2,850			1,972			3,846
DTL writeoff due to change in tax methods		—			(415	)		—
Net DTA revaluation for change in tax rate under    2017 Tax Reform		—			—			2,054
Net provision	$	2,850		$	1,557		$	5,900

Schedule of Deferred Tax Assets and Liabilities

December 31,	2019		2018
Deferred tax assets
Allowance for loan losses	$	2,076	$	1,855
Net unrealized holding losses on investment    securities available-for-sale		—		1,896
Fair value adjustment on equity securities		—		190
Non-accrual interest income		54		76
Deferred rent		—		59
Deferred revenue		71		121
Incurred but not reported medical expense		31		33
Bonus		218		178
State net operating loss carryforward		—		29
Other		33		27
Total deferred tax assets		2,483		4,464
Deferred tax liabilities
Deferred loan costs		369		361
Depreciation		289		179
Mortgage servicing rights		92		95
Net unrealized holding losses on investment    securities available-for-sale		68		—
Fair value adjustment on equity securities		32		—
Prepaid expenses		151		92
Deferred rent		23		—
Other		18		13
Total deferred tax liabilities		1,042		740
Net deferred tax asset	$	1,441	$	3,724

Schedule of Effective Income Tax Rate Reconciliation

Year ended December 31,	2019						2018						2017
	Dollar			%			Dollar			%			Dollar			%
Provision at statutory rate	$	3,193			21.0	%	$	2,707			21.0	%	$	4,825			34.0	%
Tax-exempt interest and dividend income		(538	)		(3.5	)		(577	)		(4.5	)		(948	)		(6.7	)
Bank-owned life insurance		(61	)		(0.4	)		(61	)		(0.4	)		(100	)		(0.7	)
Life insurance proceeds		—			—			—			—			(18	)		(0.1	)
Stock-based compensation expense		20			0.1			17			0.1			19			0.1
State income tax		205			1.3			(19	)		(0.1	)		82			0.6
Other		31			0.2			(95	)		(0.8	)		(14	)		(0.1	)
Net provision prior to discrete    tax adjustments		2,850			18.7			1,972			15.3			3,846			27.1
DTL writeoff for change in tax methods		—			—			(415	)		(3.2	)		—			—
Net DTA revaluation for change in    tax rate under 2017 Tax Reform		—			—			—			—			2,054			14.5
Net provision	$	2,850			18.7	%	$	1,557			12.1	%	$	5,900			41.6	%