Consolidated Condensed Statement of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Apr. 30, 2015	10,000,000		(190,504)
Balance at Apr. 30, 2015	$ 1,000	$ 991	$ (2,244)	$ 34,587	$ 105	$ 34,439
Net income				2,119		2,119
Change in unrealized gains on securities, net of taxes					(92)	$ (92)
Purchase of treasury stock (in shares)			(12,237)			5,355	[1]
Purchase of treasury stock			$ (166)			$ (166)	[1]
Dividends declared				(1,568)		(1,568)
Balance (in shares) at Jul. 31, 2015	10,000,000		(202,741)
Balance at Jul. 31, 2015	$ 1,000	991	$ (2,410)	35,138	13	34,732
Balance (in shares) at Apr. 30, 2016	10,000,000		(243,411)
Balance at Apr. 30, 2016	$ 1,000	991	$ (3,040)	35,524	125	34,600
Net income				6,358		6,358
Change in unrealized gains on securities, net of taxes					154	154
Purchase of treasury stock (in shares)			(32,714)
Purchase of treasury stock			$ (535)			(535)
Dividends declared				(1,653)		(1,653)
Balance (in shares) at Jul. 31, 2016	10,000,000		(276,125)
Balance at Jul. 31, 2016	$ 1,000	$ 991	$ (3,575)	$ 40,229	$ 279	$ 38,924

[1] Were acquired during the $3 million repurchase program authorized in September 2012.