Notes to Condensed Consolidated Financial Statements (Details Narrative) - shares	3 Months Ended
Aug. 31, 2021	Aug. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Weighted average number of shares outstanding	3,496,522	3,487,085

Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

No definition available.

Name:	us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration