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Note 4 - Contract Receivables, Contract Assets and Contract Liabilities (Tables)

6 Months Ended

May 31, 2021

Notes Tables

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

		May 31, 2021				November 30, 2020
Receivables		$	2,405,000			$	2,391,000
Assets			287,000				56,000
Liabilities			1,015,000				276,000

X

- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

+ Details

Name:	us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration