Note 8 - Deferred Revenue (Tables)

3 Months Ended

Aug. 31, 2013

Deferred Revenue Disclosure [Abstract]

Deferred Revenue, by Arrangement, Disclosure [Table Text Block]

	August 31, 2013			May 31, 2013
Balance at beginning of period	$	39,449			38,769
Debt issuance costs		-			11,412
Loss on extinguishment of debt		-			(5,625	)
Amortization		(1,556	)		(5,107	)
Balance at end of period	$	37,893			39,449