Note 16 - Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Mar. 31, 2024	Mar. 31, 2023	Jun. 30, 2023
Accumulated other comprehensive loss	$ (860)						$ (860)		$ (2,785)
Balance	472,890	$ 462,556	$ 471,006	$ 437,064	$ 415,739	$ 407,323	471,006	$ 407,323
Other comprehensive income (loss)	186	1,739	(31)	1,524	807	(89)	1,894	2,242
Balance	477,338	472,890	462,556	453,193	437,064	415,739	477,338	453,193
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated other comprehensive loss	(2,591)						(2,591)		(3,219)
AOCI Attributable to Parent [Member]
Balance	(1,063)	(2,810)	(2,785)	(5,749)	(6,544)	(6,462)	(2,785)	(6,462)
Other comprehensive income (loss)	203	1,747	(25)	1,513	795	(82)
Balance	(860)	$ (1,063)	$ (2,810)	$ (4,236)	$ (5,749)	$ (6,544)	(860)	(4,236)
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Other comprehensive income (loss)							1,894	2,242
Less AOCI attributable to noncontrolling interests							31	$ (16)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Accumulated other comprehensive loss	$ 1,731						$ 1,731		$ 434