CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Cash flows from operating activities:
Net loss	$ (14,516)	$ (3,875)
Net cash provided by (used in) operating activities
Depreciation and amortization	11,448	11,588
Postretirement benefits and pension settlement cost	7,726	0
Net losses (gains) on disposal of assets	2,547	(18,091)
Net losses on derivative instruments	3,498	113
Share-based compensation expense	1,999	3,806
Provision for credit losses	356	748
Change in operating assets and liabilities:
Accounts receivable, net	10,833	10,448
Inventories	7,391	(7,954)
Derivative assets, net	(6,035)	565
Other assets	1,589	2,335
Accounts payable	(10,724)	(11,777)
Accrued expenses and other	(15)	(2,053)
Net cash provided by (used in) operating activities	16,097	(14,147)
Cash flows from investing activities:
Sale of business	(800)	(1,214)
Purchases of property, plant and equipment	(9,591)	(13,843)
Proceeds from sales of property, plant and equipment	4,489	29,780
Net cash (used in) provided by investing activities	(5,902)	14,723
Cash flows from financing activities:
Proceeds from Credit Facilities	8,000	6,279
Repayments on Credit Facilities	(17,000)	(6,000)
Payment of financing costs	(33)	(76)
Payments of finance lease obligations	(193)	(193)
Net cash (used in) provided by financing activities	(9,226)	10
Net increase in cash and cash equivalents and restricted cash	969	586
Cash and cash equivalents and restricted cash at beginning of period	6,005	5,419
Cash and cash equivalents and restricted cash at end of period	6,974	6,005
Supplemental disclosure of cash flow information:
Cash paid for interest	2,358	2,803
Cash paid for income taxes	152	164
Supplemental disclosure of non-cash investing and financing activities:
Non-cash additions to property, plant and equipment	85	167
Right-of-use assets obtained in exchange for new operating lease liabilities	21,407	13,508
Non-cash issuance of 401(K) common stock	$ 0	$ 595