Condensed Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows From Operating Activities
Net income	$ 155,000	$ 81,000
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation	202,000	134,000
Amortization of finite-life intangible assets	12,000	20,000
Share-based compensation expense	371,000	95,000
Deferred income taxes		6,000
Changes in operating assets and liabilities:
Accounts receivable	675,000	95,000
Contract assets	(57,000)	(167,000)
Inventories	(240,000)	(500,000)
Prepaid expenses and other assets	901,000	(125,000)
Income tax payable, net	(226,000)	(175,000)
Accounts payable and accrued liabilities	(863,000)	(26,000)
Accrued compensation	(1,174,000)	(1,132,000)
Net cash used in operating activities	(244,000)	(1,694,000)
Cash Flows From Investing Activities
Expenditures for property and equipment	(109,000)	(241,000)
Expenditures for finite-life intangible assets	(24,000)	(15,000)
Net cash used in investing activities	(133,000)	(256,000)
Cash Flows From Financing Activities
Issuance of common stock upon exercise of options	29,000
Taxes paid on net share settlement of stock option exercises		(60,000)
Repurchase of common stock		(145,000)
Net cash provided by (used in) financing activities	29,000	(205,000)
Net decrease in cash	(348,000)	(2,155,000)
Cash and cash equivalents
Beginning of period	7,372,000	8,153,000
End of period	7,024,000	5,998,000
Supplemental Disclosures of Cash Flow Information
Cash paid for income taxes	251,000	135,000
Supplemental Disclosures of Noncash Investing and Financing Activities
Property and equipment acquisitions in accounts payable	34,000	46,000
Intangible asset acquisitions in accounts payable		9,000
Demonstration equipment returned to inventory	$ 19,000	$ 5,000