CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 49,818,000	$ 27,127,000	$ 19,599,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,163,000	1,930,000	1,771,000
Gain on disposal of fixed asset		(15,000)
Interest expense (income) on other investments	31,000	(470,000)
Unrealized (gain) loss on marketable securities	(56,000)	80,000	426,000
(Recovery of) Provision for credit losses	(99,000)	(112,000)	17,000
Change to inventory reserve	1,691,000	(445,000)	1,187,000
Deferred income taxes	(2,776,000)	(2,818,000)	(214,000)
Stock based compensation expense	1,733,000	1,464,000	1,649,000
Gain on extinguishment of debt			(3,904,000)
Changes in operating assets and liabilities:
Accounts receivable	(5,730,000)	3,261,000	(1,154,000)
Inventories	(3,255,000)	1,883,000	(19,274,000)
Prepaid expenses and other current assets	(867,000)	(564,000)	(430,000)
Income tax receivable	2,000	(75,000)
Other assets	25,000	35,000	(103,000)
Accounts payable, accrued expenses, accrued salaries and wages, accrued income taxes	2,688,000	(6,581,000)	8,762,000
Net Cash Provided by Operating Activities	45,368,000	24,700,000	8,332,000
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant, and equipment	(1,594,000)	(2,962,000)	(1,482,000)
Proceeds from disposal of fixed asset		38,000
Purchases of marketable securities	(206,000)	(148,000)	(81,000)
Purchases of other investments	(1,351,000)	(35,281,000)
Redemption of other investments		10,091,000
Net Cash Used in Investing Activities	(3,151,000)	(28,262,000)	(1,563,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from stock option exercises	427,000	85,000	155,000
Cash paid for dividend	(13,258,000)	(2,298,000)
Net Cash (Used in) Provided by Financing Activities	(12,831,000)	(2,213,000)	155,000
Net increase (decrease) in Cash and Cash Equivalents	29,386,000	(5,775,000)	6,924,000
CASH AND CASH EQUIVALENTS - Beginning	35,955,000	41,730,000	34,806,000
CASH AND CASH EQUIVALENTS - Ending	65,341,000	35,955,000	41,730,000
SUPPLEMENTAL CASH FLOW INFORMATION
Interest paid	14,000	16,000	16,000
Income taxes paid	$ 9,330,000	$ 8,811,000	$ 2,168,000