Note 4 - Investments - Reconciliation of Investments Recorded at Fair Value (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2024 USD ($)
Equity Securities [Member]
Beginning Balance	$ 290
Principal repayments	0
Amortization of day one premium	0
Accretion of bifurcation discount	0
Net Investment Income (Loss)	(290)
Other Comprehensive Income (Loss)	0
Ending Balance	0
Debt Securities [Member]
Beginning Balance	7,008
Principal repayments	(3,000)
Amortization of day one premium	(172)
Accretion of bifurcation discount	507
Net Investment Income (Loss)	1,038
Other Comprehensive Income (Loss)	(967)
Ending Balance	$ 4,414