Note 9 - Income Taxes (Details Textual) - USD ($)	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member]
Statement [Line Items]
Operating Loss Carryforwards		$ 0
Tax Credit Carryforward, Amount		$ 0
Foreign Tax Authority [Member] | Canada Revenue Agency [Member]
Statement [Line Items]
Operating Loss Carryforwards	$ 46,000
Tax Credit Carryforward, Amount	0
Deferred Tax Assets, Valuation Allowance	$ 12,000		$ 0