Note 3 - Related Party Transactions (Details Textual) - USD ($)	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Majority Shareholder [Member]
Statement [Line Items]
Ownership Interest, Number of Shares (in shares)		15,243,283
Ownership Interest Percentage		72.40%
Vigers Appraisal And Consulting Ltd [Member]
Statement [Line Items]
Income From Advanced Payment of Rental and Utility Fees	$ 158,000	$ 166,000
Vigers Appraisal And Consulting Ltd [Member] | Related Party [Member]
Statement [Line Items]
Accounts Payable	842	0
Vigers Strategic Services Ltd [Member]
Statement [Line Items]
Income From Advanced Payment of Rental and Utility Fees	1,600	$ 2,000
Vigers Strategic Services Ltd [Member] | Related Party [Member]
Statement [Line Items]
Accounts Payable	$ 0