Note 7 - Accrued Expenses (Tables)

12 Months Ended

Nov. 30, 2013

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	November 30, 2013		November 30, 2012
Salaries, wages, and commissions	$	836,200	$	924,123
Accrued warranty expense		220,719		578,864
Other		661,556		457,253
	$	1,718,475	$	1,960,240