Note 5 - Accrued Expenses (Tables)

9 Months Ended

Aug. 31, 2013

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities [Table Text Block]

	August 31, 2013		November 30, 2012
Salaries, wages, and commissions	$	914,803	$	924,123
Accrued warranty expense		520,428		578,864
Other		346,429		457,253
	$	1,781,660	$	1,960,240