Note 1 - Nature of Operations and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Property, Plant, and Equipment, Useful Lives [Table Text Block]

	Years
Buildings and improvements	35	-	40
Furniture and fixtures and vehicles	3	-	10

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]

To Be Well Capitalized

For Capital

Under Prompt Corrective

Actual

Adequacy Purposes

Action Provisions

Amount

Ratio

Amount

Ratio

Amount

Ratio

As of December 31, 2020

Community Bank Leverage Ratio

Bank

$

111,098

10.0

%

N/A

N/A

$

89,175

8.0

%

											To Be Well Capitalized
						For Capital					Under Prompt Corrective
	Actual					Adequacy Purposes					Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
As of December 31, 2019
Tier 1 (core) capital, and ratio to adjusted total assets
Bank	$	104,480		10.5	%	$	40,083		4.0	%	$	50,103		5.0	%
Tier 1 (core) capital, and ratio to risk-weighted assets
Bank	$	104,480		12.4	%	$	50,727		6.0	%	$	67,636		8.0	%
Total risk-based capital, and ratio to risk-weighted assets
Bank	$	112,088		13.3	%	$	67,636		8.0	%	$	84,545		10.0	%
Common equity tier 1 capital ratio to risk-weighted assets
Bank	$	104,480		12.4	%	$	38,045		4.5	%	$	54,954		6.5	%

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended		Year Ended		Year Ended
	December 31, 2020		December 31, 2019		December 31, 2018
Net income available to common shareholders	$	6,832,214	$	9,415,090	$	7,331,879
Weighted average common shares outstanding		4,330,525		4,405,575		4,410,422
Effect of dilutive securities		19,499		57,984		72,261
Weighted average diluted shares outstanding		4,350,024		4,463,559		4,482,683
Basic income per common share	$	1.58	$	2.14	$	1.66
Diluted income per common share	$	1.57	$	2.11	$	1.64