Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2025	Dec. 31, 2024	Jun. 30, 2025
Operating activities:
Net loss	$ (2,511)	$ (710)	$ 2,421	$ (5,147)	$ (3,221)	$ (2,726)
Adjustments to reconcile net loss to net cash provided by operating activities:
Non-cash compensation expense					2,808	4,033
Non-cash compensation to directors					960	974
Depreciation	8,120		7,825		16,258	15,198
Amortization	1,713		1,712		3,426	3,428
Deferred income taxes					(165)	(1,238)
Adjustment to tax receivable agreement liability					(856)	0	$ (347)
Other items, net					1,479	(435)
Change in operating assets and liabilities:
Trade receivables					8,147	6,725
Inventories					(4,647)	178
Prepaid expenses and other assets					(6,738)	(2,707)
Accounts payable					(3,069)	10,372
Income taxes payable					64	941
Accrued expenses					5,815	(13,509)
Other liabilities					(1,079)	(1,229)
Net cash provided by operating activities					19,182	20,005
Investing activities:
Purchases of property and equipment					(8,720)	(14,271)
Proceeds from sale of property and equipment					90	350
Net cash used in investing activities					(8,630)	(13,921)
Financing activities:
Proceeds from revolving credit facility					20,000	43,000
Payments on revolving credit facility					(18,000)	(20,000)
Proceeds received from exercise of stock options					0	233
Cash paid for withholding taxes on vested restricted stock					(814)	(752)
Repurchase and retirement of Class A Common Stock					(20,849)	(20,199)
Net cash (used in) provided by financing activities					(19,663)	2,282
Effect of exchange rate changes on cash					318	(193)
Changes in cash					(8,793)	8,173
Cash—Beginning of period		$ 37,002		$ 26,945	37,002	26,945	26,945
Cash—End of period	$ 28,209		$ 35,118		28,209	35,118	$ 37,002
Supplemental cash flow information:
Cash paid for interest					631	1,072
Cash paid (refund) for income taxes, net					15	(425)
Non-cash financing activities:
ROU assets obtained in exchange for lease liabilities					$ 0	$ 1,787