Note 7 - Accrued Expenses (Tables)

9 Months Ended

Aug. 31, 2020

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	August 31, 2020		November 30, 2019
Salaries, wages, and commissions	$	716,340	$	555,201
Accrued warranty expense		278,518		203,185
Other		205,463		374,440
	$	1,200,321	$	1,132,826