Note 11 - Income Taxes (Details) - Deferred Tax Assets Expiration With Respect To Net Operating Losses (USD $) In Thousands, unless otherwise specified	228 Months Ended	24 Months Ended
	Jun. 30, 2032 Domestic Tax Authority [Member]	Jun. 30, 2030 Foreign Tax Authority [Member]
Note 11 - Income Taxes (Details) - Deferred Tax Assets Expiration With Respect To Net Operating Losses [Line Items]
Deferred Income Tax Assets	$ 2,398	$ 1,194
Net Operating Loss Carryforwards	$ 51,808	$ 3,880