Note 6 - Related Party Transactions (Details Textual) - USD ($)	3 Months Ended	6 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Majority Shareholder [Member]
Ownership Interest, Number of Shares (in shares)	15,243,283			15,243,283
Ownership Interest Percentage	72.40%			72.40%
Vigers Appraisal And Consulting Ltd [Member]
Income From Advanced Payment of Rental and Utility Fees	$ 33,000	$ 36,000		$ 65,000	$ 76,000
Accounts Payable	1,000	1,000		1,000	1,000
The Whisky Capital Pte Ltd [Member]
Accounts Payable		0			$ 0
Payments to Suppliers	$ 0	$ 0	$ 30,000	$ 0

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(15)(5))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(15)(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1

Name:	us-gaap_AccountsPayableCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant