Note 19 - Earnings Per Share (Details Textual) - $ / shares	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding (in shares)	741,750	656,375	741,750	656,375
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit (in dollars per share)			$ 2.53	$ 2.53
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit (in dollars per share)			$ 7.76	$ 7.76
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	140,500	285,500	140,500	285,500