Commercial Mortgage and Other Loans Receivable - Mortgage Loans (Details) - Mortgage Receivable [Member] $ in Thousands	12 Months Ended
	Jun. 30, 2019 USD ($)
Principal Balance at July 1, 2018	$ 3,005
Deferred Fees Balance at July 1, 2018	0
Provision for Loan Loss Balance at July 1, 2018	0
Carrying Value Balance at July 1, 2018	3,005
Additions during the period:
New mortgage loans	4,110
Deductions during the period:
Collections of principal	(2,920)
Additions during the period:
New mortgage loans	(81)
Deductions during the period:
Collections of principal	0
Additions during the period:
New mortgage loans	0
Deductions during the period:
Collections of principal	0
Additions during the period:
New mortgage loans	4,029
Deductions during the period:
Collections of principal	(2,920)
Principal Balance at June 30, 2019	4,195
Deferred Fees Balance at June 30, 2019	(81)
Provision for Loan Loss Balance at June 30, 2019	0
Carrying Value Balance at June 30, 2019	$ 4,114