Note 11 - Stock Based Compensation (Tables)

6 Months Ended

Sep. 30, 2018

Notes Tables

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Grant Date	Number of Options Granted		Risk Free Interest Rate			Expected Term (in years)		Expected Stock Price Volatility			Dividend Yield			Fair Value of Options Granted
February 3, 2014		225,150		2.07	%		7.0		27.30	%		0.00	%	$	4.65
November 1, 2016		19,000		1.61	%		7.0		27.17	%		0.00	%	$	4.35
February 3, 2017		3,700		2.27	%		7.0		27.26	%		0.00	%	$	5.18
April 1, 2018		20,354		2.67	%		7.0		19.61	%		0.00	%	$	4.05

Share-based Compensation, Stock Options, Activity [Table Text Block]

September 30, 2018:	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)
Outstanding at April 1, 2018		242,350	$	13.84		6.1
Granted		20,354		14.25		9.5
Exercised		-		-		-
Forfeited, exchanged or expired		-		-		-
Outstanding at September 30, 2018		262,704	$	13.87		5.9
Vested at September 30, 2018		180,260	$	13.85		5.4

March 31, 2018:	Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)
Outstanding at April 1, 2017		242,350	$	13.84		7.1
Granted		-		-		-
Exercised		-		-		-
Forfeited, exchanged or expired		-		-		-
Outstanding at March 31, 2018		242,350	$	13.84		6.1
Vested at March 31, 2018		180,260	$	13.84		5.8

Schedule of Nonvested Share Activity [Table Text Block]

				Weighted-Average
September 30, 2018:	Shares			Fair Value
Nonvested shares at April 1, 2018		19,440		$	13.74
Granted		8,801			14.25
Vested		(80	)		14.00
Forfeited		-			-
Nonvested shares at September 30, 2018		28,161		$	13.90
Fair Value of shares vested at September 30, 2018	$	923,567

				Weighted-Average
March 31, 2018:	Shares			Fair Value
Nonvested shares at April 1, 2017		36,220		$	13.76
Granted		-			-
Vested		(16,780	)		13.78
Forfeited		-			-
Nonvested shares at March 31, 2018		19,440		$	13.74
Fair Value of shares vested at March 31, 2018	$	918,555