Discontinued Operations (Details) - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021
Assets:
Cash	$ 600		$ 600		$ 0
Accounts receivable	0		0		52,000
Inventories	0		0		3,300
Discontinued operations	600		600		55,300
Liabilities:
Accrued expenses and taxes	0		0		20,700
Contract liabilities	7,900		7,900		16,500
Liabilities of discontinued operations	7,900		7,900		$ 37,200
Revenues	0	$ 107,800	20,600	$ 387,700
Cost of goods sold	6,900	78,800	10,300	458,500
Gross profit (loss)	(6,900)	29,000	10,300	(70,800)
Selling, general and administrative expenses	700	12,600	2,900	282,200
Gain (loss) from operation	(7,600)	16,400	7,400	(353,000)
Loss on disposal	0	0	0	(405,400)
Income (loss) before income tax benefit	(7,600)	16,400	7,400	(758,400)
Income tax expense (benefit)	0	0	4,000	(179,900)
Net income (loss) from attributable to discontinued operations	$ (7,600)	$ 16,400	$ 3,400	$ (578,500)