Note 5 - Fair Value Measurements - Liability Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Details) - Contingent Consideration [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2021	Mar. 31, 2021
Fair value at the beginning of period	$ 10,582	$ 6,137
Change in fair value of contingent consideration	1,588	6,188
Payments	0	(155)
Fair value at the end of period	$ 12,170	$ 12,170