Note 3 - Investment Securities (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Summary of Investment Holdings, Schedule of Investments [Table Text Block]

			Gross		Gross
	Amortized		Unrealized		Unrealized		Fair
	Cost		Gains		Losses		Value
December 31, 201 9 :
Available for Sale
State and municipal securities	$	13,126,074	$	339,243	$	-	$	13,465,317
Residential mortgage-backed securities		10,935,731		144,845		30,136	$	11,050,442
	$	24,061,805	$	484,088	$	30,136	$	24,515,759
December 31, 201 8 :
Available for Sale
State and municipal securities	$	13,092,077	$	116,127	$	21,416	$	13,186,788
Residential mortgage-backed securities		12,485,167		59,282		197,470		12,346,979
	$	25,577,244	$	175,409	$	218,886	$	25,533,767

Investments Classified by Contractual Maturity Date [Table Text Block]

	Securities Available for Sale
	Amortized		Fair
	Cost		Value
Due in three months or less	$	372,480	$	373,288
Due after three months through one year		1,383,663		1,397,096
Due after one year through five years		4,340,262		4,446,310
Due after five years through ten years		3,847,841		3,967,774
Due after ten years		3,181,828		3,280,849
Residential mortgage-backed securities		10,935,731		11,050,442
	$	24,061,805	$	24,515,759

Schedule of Unrealized Loss on Investments [Table Text Block]

	Less than 12 Months				12 Months or More				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	Value		Losses		Value		Losses		Value		Losses
December 31, 201 9
Securities Available for Sale
Residential mortgage-backed securities	$	1,912,778	$	6,049	$	2,943,044	$	24,087	$	4,855,822	$	30,136
	$	1,912,778	$	6,049	$	2,943,044	$	24,087	$	4,855,822	$	30,136
December 31, 201 8
Securities Available for Sale
State and municipal securities	$	1,831,305	$	9,610	$	1,345,990	$	11,806	$	3,177,295	$	21,416
Residential mortgage-backed securities		2,865,546		25,266		6,034,053		172,204		8,899,599		197,470
	$	4,696,851	$	34,876	$	7,380,043	$	184,010	$	12,076,894	$	218,886