Note 17 - Summary of Quarterly Results (Unaudited) - Quarterly Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2022	Jun. 30, 2021
Net Sales	$ 127,469	$ 110,111	$ 111,143	$ 106,397	$ 97,015	$ 72,204	$ 76,387	$ 70,006
Gross Profit	32,457	26,793	25,448	24,510	22,904	18,092	19,706	18,272	$ 109,208	$ 78,974
Net Income	$ 5,176	$ 3,618	$ 3,105	$ 3,133	$ 198	$ 1,472	$ 2,208	$ 1,990	$ 15,032	$ 5,868
Basic (in dollars per share)	$ 0.19	$ 0.13	$ 0.11	$ 0.12	$ 0.01	$ 0.05	$ 0.08	$ 0.08	$ 0.55	$ 0.22
Diluted (in dollars per share)	0.18	0.13	0.11	0.11	0.01	0.05	0.08	0.07	$ 0.54	$ 0.21
Maximum [Member]
Share prices (in dollars per share)	7.66	7.49	8.42	8.43	9.54	10.78	9.01	7.34
Minimum [Member]
Share prices (in dollars per share)	$ 5.53	$ 6.00	$ 6.41	$ 7.12	$ 7.55	$ 8.09	$ 6.75	$ 5.52
Fiscal Year [Member]
Net Sales									$ 455,120	$ 315,612
Gross Profit									109,208	78,974
Net Income									$ 15,032	$ 5,868
Basic (in dollars per share)									$ 0.55	$ 0.22
Diluted (in dollars per share)									0.54	0.21
Fiscal Year [Member] | Maximum [Member]
Share prices (in dollars per share)									8.43	10.78
Fiscal Year [Member] | Minimum [Member]
Share prices (in dollars per share)									$ 5.53	$ 5.52