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Operations and Summary of Significant Accounting Policies - Disaggregated net sales by customer type (Details) - USD ($)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Revenue	$ 100,000	$ 120,000
Medical
Revenue	63,000	62,000
Associations
Revenue	11,000	30,000
Education
Revenue	12,000	12,000
Other
Revenue	$ 14,000	$ 16,000

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income after deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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