Note 9 - Deferred Financing Costs, Net (Tables)

3 Months Ended

Aug. 31, 2015

Deferred Financing Costs [Abstract]

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]

	As of
	August 31, 2015			May 31, 2015
Balance at beginning of period	$	26,399			33,116
Amortization		(1,754	)		(6,717	)
Balance at end of period	$	24,645			26,399