Discontinued Operations (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Assets:
Cash	$ 200	$ 0
Accounts receivable	0	52,000
Inventories	0	3,300
Discontinued operations	200	55,300
Liabilities:
Accrued expenses and taxes	0	20,700
Contract liabilities	0	16,500
Liabilities of discontinued operations	0	37,200
Revenues	28,500	387,700
Cost of goods sold	16,600	471,800
Gross profit	11,900	(84,100)
Selling, general and administrative expenses	3,500	280,400
Gain (loss) from operations	8,400	(364,500)
Loss on disposal	0	(405,400)
Gain (loss) before income tax benefit	8,400	(769,900)
Income tax expense (benefit), all deferred	4,000	(207,400)
Net gain (loss) attributable to discontinued operations	$ 4,400	$ (562,500)