Organization and Summary of Significant Accounting Policies (Details Narrative) - USD ($)	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Product Information [Line Items]
Net Income (Loss) Attributable to Parent	$ 2,040,000	$ 619,000
Cash used in operating activities	423,000	484,000
Cash used in operating activities	919,000	(1,036,000)	$ 411,000
Cash	18,000
Cash and cash equivalents	0	0
Inventory Valuation Reserves	48,000
Inventory, Net	0	48,000
Write-down of investment	1,112,000
Write-down of investment	1,000	1,149,000
Advertising expense	44,000	106,000
Research and development expense	3,000	17,000
Warranty accrual	$ 0	$ 0
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Desmet Ballestra [Member]
Product Information [Line Items]
Concentration risk percentage	95.00%	97.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | E W [Member]
Product Information [Line Items]
Concentration risk percentage	5.00%	3.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | E W [Member]
Product Information [Line Items]
Concentration risk percentage	0.00%	100.00%