Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Cash Flows from Operating Activities
Net Income	$ 16,212,000	$ 19,309,000
Non-cash items included in net income
Depreciation and amortization	9,020,000	7,143,000
Deferred income taxes	270,000	(1,143,000)
Deferred compensation plan	1,441,000	1,374,000
ESPP discount	159,000	145,000
Stock compensation expense	3,195,000	2,961,000
Issuance of common shares as compensation	337,000	338,000
Loss on disposition of fixed assets	(21,000)	173,000
Allowance for credit losses	93,000	57,000
Inventory obsolescence reserve	607,000	(1,259,000)
Changes in certain assets and liabilities
Accounts receivable	(15,606,000)	8,894,000
Inventories	131,000	4,646,000
Refundable income taxes	304,000	466,000
Accounts payable	11,532,000	(3,092,000)
Accrued expenses and other	2,781,000	(6,865,000)
Customer prepayments	(1,836,000)	(850,000)
Net cash flows provided by operating activities	28,619,000	32,297,000
Cash Flows from Investing Activities
Proceeds from the sale of fixed assets	50,000	32,000
Purchases of property, plant and equipment	(2,515,000)	(4,626,000)
Net cash flows used in investing activities	(25,321,000)	(4,594,000)
Cash Flows from Financing Activities
Payments of long-term debt	(145,537,000)	(102,366,000)
Borrowings of long-term debt	146,668,000	83,520,000
Cash dividends paid	(4,469,000)	(4,280,000)
Shares withheld for employees' taxes	(463,000)	(304,000)
Payments on financing lease obligations	(253,000)	(241,000)
Proceeds from stock option exercises	842,000	1,270,000
Net cash flows used in financing activities	(3,212,000)	(22,401,000)
Change related to foreign currency	105,000	45,000
Increase in cash and cash equivalents	191,000	5,347,000
Cash and cash equivalents at beginning of period	4,110,000	1,828,000
Cash and cash equivalents at end of period	4,301,000	7,175,000
CBH [Member]
Cash Flows from Investing Activities
Acquisition of CBH (net of cash acquired)	(22,797,000)	0
EMI Industries [Member]
Cash Flows from Investing Activities
Acquisition of EMI	$ (59,000)	$ 0