Note 6 - Product Warranty (Tables)

3 Months Ended

Feb. 28, 2013

Schedule of Product Warranty Liability [Table Text Block]

	For the three months ended
	February 28, 2013			February 29, 2012
Balance, beginning	$	578,864			$	201,630
Settlements made in cash or in-kind		(168,689	)			(143,059	)
Warranties issued		165,155				125,566
Balance, ending	$	575,330			$	184,137