Quarterly Financial Information - Unaudited (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Net sales	$ 114,611	$ 113,972	$ 108,483	$ 104,007	$ 110,822	$ 107,219	$ 100,108	$ 94,603	$ 441,073	$ 412,752	$ 393,692
Gross profit	27,436	25,336	22,805	22,367	23,567	23,317	21,950	18,410	97,944	87,244	70,947
Operating income (loss)	13,974	(5,060)	11,654	6,047	7,596	2,982	4,584	1,918	26,615	17,080	10,542
Net income	$ 10,702	$ (3,742)	$ 9,054	$ 4,140	$ 4,922	$ 1,803	$ 3,051	$ 752	$ 20,154	$ 10,528	$ 14,778
Earnings (loss) per share:
Basic	$ 2.03	$ (0.71)	$ 1.73	$ 0.8	$ 0.95	$ 0.35	$ 0.59	$ 0.15	$ 3.84	$ 2.04	$ 2.83
Diluted	$ 1.89	$ (0.71)	$ 1.62	$ 0.74	$ 0.89	$ 0.33	$ 0.57	$ 0.14	$ 3.55	$ 1.91	$ 2.74
Restructuring expense					$ 400	$ 2,600				$ 2,982
Sale of income					3,300
Pre-tax non-cash asset impairment charge									$ 14,079
Valuation allowance	$ 31				$ 52				$ 31	$ 52
Mexicali, Mexico [Member]
Earnings (loss) per share:
Lessee, Operating Lease, Term of Contract	12 years	12 years							12 years
Pre-tax non-cash asset impairment charge		$ 14,100							$ 14,100
Huntingburg Indiana [Member]
Earnings (loss) per share:
Pretax gain related to sale	$ 3,700	$ 700							$ 3,700