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Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2018
Income Tax [Line Items]
Loss before income taxes	$ (2,083,000)	$ (2,160,000)	$ (4,151,000)	$ (4,398,000)
Effective tax rate for continuing operations	0.00%	0.00%	0.00%	0.00%
Federal statutory effective tax rate			21.00%	21.00%
Alternative minimum tax credit receivable								$ 429,000
Unrecognized tax benefits	$ 0	$ 0	$ 0	$ 0
Forecast
Income Tax [Line Items]
Tax Cuts And Jobs Act Of 2017 Alternative minimum tax credit refundable					$ 107,000	$ 107,000	$ 214,000

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