Credit Agreements (Details)			9 Months Ended
	Feb. 11, 2021 USD ($) Subsidiary Property	Jun. 19, 2020 USD ($) Subsidiary	Mar. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Apr. 20, 2020 USD ($)
Line of Credit [Abstract]
Line of credit, maximum capacity		$ 25,000,000
Interest reserve			$ 1,750,000	$ 1,750,000
Paycheck Protection Program Loans [Member]
Line of Credit [Abstract]
Percentage of loan balance expected to be forgiven			100.00%
Accrued loan balance			$ 0
New Revolving Credit Facility [Member]
Line of Credit [Abstract]
Number of wholly-owned subsidiaries | Subsidiary		2
Line of credit availability before amendment			$ 100,000
Line of credit, maturity date			Jun. 19, 2022
Line of credit, optional extension period		1 year
Interest reserve		$ 1,750,000
Interest rate percentage		3.50%
Cash deposit balance		$ 20,000,000
Percentage of non-compliance fee		2.00%
Period allowed for adding additional borrowers and properties as collateral			60 days
Amended Revolving Credit Facility [Member]
Line of Credit [Abstract]
Line of credit availability	$ 25,000,000
Line of credit, maturity date			Jan. 31, 2023
Line of credit, optional extension period	1 year
Number of wholly-owned subsidiaries added as co-borrowers | Subsidiary	2
Number of properties added as replacement collateral | Property	2
Revolving Line of Credit [Member]
Line of Credit [Abstract]
Line of credit outstanding			$ 0	$ 0
Wind-Down Entity [Member] | Paycheck Protection Program Loans [Member]
Line of Credit [Abstract]
Interest rate percentage					1.00%
Face amount of debt					$ 324,700