Note 2 - Securities (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Approximate Fair  Value
As of December 31, 2016
Debt Securities:
Municipals	$	39,357,506	$	65,673	$	(1,085,654	)	$	38,337,525
Corporates		7,003,986		54,050		(4,514	)		7,053,522
Government sponsored mortgage-backed securities and SBA loan pools		48,115,793		19,432		(1,127,037	)		47,008,188
	$	94,477,285	$	139,155	$	(2,217,205	)	$	92,399,235

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Approximate Fair  Value
As of December 31, 2015
Equity Securities	$	102,212	$	10,081	$	(12,776	)	$	99,517
Debt Securities:
U. S. government agencies		8,533,885		-		(137,101	)		8,396,784
Municipals		31,132,635		302,335		(85,808	)		31,349,162
Corporates		3,965,719		-		(152,019	)		3,813,700
Government sponsored mortgage-backed securities and SBA loan pools		54,643,681		13,764		(1,024,121	)		53,633,324
	$	98,378,132	$	326,180	$	(1,411,825	)	$	97,292,487

Available-for-sale Securities [Table Text Block]

Maturities of Available for Sale
	Amortized Cost		Approximate Fair  Value
1-5 years	$	1,297,373	$	1,299,297
5-10 years		11,327,059		11,187,770
After ten years		33,737,060		32,903,980
Government sponsored mortgage-backed securities and SBA loan pools not due on a single maturity date		48,115,793		47,008,188
	$	94,477,285	$	92,399,235

Held-to-maturity Securities [Table Text Block]

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)		Approximate Fair Value
As of December 31, 2016
Debt Securities:
Government sponsored mortgage-backed securities	$	27,528	$	625	$	-	$	28,153

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized (Losses)		Approximate Fair Value
As of December 31, 2015
Debt Securities:
Government sponsored mortgage-backed securities	$	43,099	$	836	$	-	$	43,935

Schedule of Unrealized Loss on Investments [Table Text Block]

	December 31, 2016
	Less than 12 Months					12 Months or More					Total
Description of Securities	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Municipals	$	33,084,816	$	(1,082,021	)	$	179,402	$	(3,633	)	$	33,264,218	$	(1,085,654	)
Corporates		1,996,172		(3,828	)		881,100		(686	)		2,877,272		(4,514	)
Government sponsored mortgage-backed securities and SBA loan pools		39,570,463		(1,022,511	)		3,649,276		(104,526	)		43,219,739		(1,127,037	)
	$	74,651,451	$	(2,108,360	)	$	4,709,778	$	(108,845	)	$	79,361,229	$	(2,217,205	)

	December 31, 2015
	Less than 12 Months					12 Months or More					Total
Description of Securities	Fair Value		Unrealized Losses			Fair Value		Unrealized Losses			Fair Value		Unrealized Losses
Equity Securities	$	-	$	-		$	35,151	$	(12,776	)	$	35,151	$	(12,776	)
U. S. government agencies		6,399,920		(83,965	)		1,996,864		(53,136	)		8,396,784		(137,101	)
Municipals		6,167,019		(70,266	)		715,410		(15,542	)		6,882,429		(85,808	)
Corporates		1,675,500		(79,708	)		2,138,200		(72,311	)		3,813,700		(152,019	)
Government sponsored mortgage-backed securities and SBA loan pools		33,072,102		(493,865	)		15,923,314		(530,256	)		48,995,416		(1,024,121	)
	$	47,314,541	$	(727,804	)	$	20,808,939	$	(684,021	)	$	68,123,480	$	(1,411,825	)

Held-to-maturity Securities [Member]

Notes Tables

Held-to-maturity Securities [Table Text Block]

	Amortized Cost		Approximate Fair Value
Government sponsored mortgage-backed securities not due on a single maturity date	$	27,528	$	28,153