Commitments and Contingencies (Tables)

12 Months Ended

May. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Summary of Minimum Future Payment Due Under Lease

Minimum payments over the next five years under these leases as of May 31, 2015, exclusive of property taxes and insurance, are as follows:

Year ending May 31,	Minimum Payments
2016	$	838
2017	416
2018	92
2019	—
2020	—
	$	1,346