Note 5 - Contract Receivables, Contract Assets and Contract Liabilities (Tables)

9 Months Ended

Aug. 31, 2023

Notes Tables

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

	August 31, 2023		November 30, 2022
Receivables	$	4,456,000	$	2,467,000
Assets		286,000		451,000
Liabilities		1,064,000		1,153,000