Note 6 - Investment Securities Available for Sale (Tables)

12 Months Ended

Mar. 31, 2016

Notes Tables

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

			Gross		Gross
	Amortized		unrealized		unrealized		Fair
March 31, 2016	cost		gains		losses		value
U.S. government agencies	$	10,519,126	$	20,622	$	6,752	$	10,532,996
Municipal bonds		4,061,599		51,105		140		4,112,564
Corporate bonds		2,000,000		-		101,360		1,898,640
Mortgage-backed securities		53,939,706		300,731		300,237		53,940,200
	$	70,520,431	$	372,458	$	408,489	$	70,484,400

			Gross		Gross
	Amortized		unrealized		unrealized		Fair
March 31, 2015	cost		gains		losses		value
U.S. government agencies	$	17,509,211	$	3,363	$	200,627	$	17,311,947
Municipal bonds		2,149,114		168,016		-		2,317,130
Corporate bonds		2,000,000		-		46,736		1,953,264
Mortgage-backed securities		71,779,015		387,015		808,620		71,357,410
	$	93,437,340	$	558,394	$	1,055,983	$	92,939,751

Investments Classified by Contractual Maturity Date [Table Text Block]

	Available for Sale
	March 31, 2016				March 31, 2015
	Amortized		Fair		Amortized		Fair
	cost		value		cost		value
Maturing
Within one year	$	731,217	$	731,060	$	509,211	$	512,574
Over one to five years		3,268,217		3,287,589		-		-
Over five to ten years		9,830,135		9,751,610		19,000,000		18,752,637
Over ten years		2,751,156		2,773,941		2,149,114		2,317,130
Mortgage-backed, in monthly installments		53,939,706		53,940,200		71,779,015		71,357,410
	$	70,520,431	$	70,484,400	$	93,437,340	$	92,939,751

Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block]

	Less than 12 months				12 months or longer				Total
	Gross unrealized		Fair		Gross unrealized		Fair		Gross unrealized		Fair
March 31, 2016	losses		value		losses		value		losses		value
U.S. government agencies	$	6,752	$	2,244,157	$	-	$	-	$	6,752	$	2,244,157
Municipal bonds		140		480,168		-		-		140		480,168
Corporate bonds		-		-		101,360		1,898,640		101,360		1,898,640
Mortgage-backed securities		33,080		4,367,962		267,157		20,274,037		300,237		24,641,999
	$	39,972	$	7,092,287	$	368,517	$	22,172,677	$	408,489	$	29,264,964

	Less than 12 months				12 months or longer				Total
	Gross unrealized		Fair		Gross unrealized		Fair		Gross unrealized		Fair
March 31, 2015	losses		value		losses		value		losses		value
U.S. government agencies	$	11,208	$	3,988,792	$	189,419	$	12,810,581	$	200,627	$	16,799,373
Municipal bonds		-		-		-		-		-		-
Corporate bonds		46,736		1,953,264		-		-		46,736		1,953,264
Mortgage-backed securities		187,176		9,687,070		621,444		33,241,821		808,620		42,928,891
	$	245,120	$	15,629,126	$	810,863	$	46,052,402	$	1,055,983	$	61,681,528