Leases (Tables)

12 Months Ended

Apr. 30, 2012

Leases [Abstract]

Leased Property Under Capital Leases By Major Classes

		Asset balances at April 30,
		2012		2011
Real estate	$	11,933	$	11,933
Equipment		2,612		2,605
		14,545		14,538
Less accumulated amortization		4,378		3,918
	$	10,167	$	10,620

Schedule of Future Minimum Payments for Capital Leases And Noncancelable Operating Leases

		Capital		Operating leases
Years ended April 30,		leases		leases
2013	$	1,266	$	928
2014		1,262		739
2015		898		385
2016		721		199
2017		678		131
Thereafter		12,462		481
Total minimum lease payments		17,287	$	2,863
Less amount representing interest		7,642
Present value of net minimum lease payments	$	9,645