COVID-19 - Collections and Agreements with Tenants (Details)		1 Months Ended	3 Months Ended
	Aug. 05, 2020	Jul. 31, 2020 USD ($)	Jun. 30, 2020 USD ($) tenant
Unusual or Infrequent Item, or Both [Line Items]
Number of tenants with expiring lease renewing | tenant			2
Office and Retail
Unusual or Infrequent Item, or Both [Line Items]
Rental and Other Property Income Billed to Tenants			$ 12,940,790
% Collected			90.20%
% Collected by Applying the Security Deposit			1.00%
% Deferred			0.30%
% Recorded as Bad Debt			0.10%
% Abated			0.00%
Office and Retail | Subsequent Event
Unusual or Infrequent Item, or Both [Line Items]
Rental and Other Property Income Billed to Tenants		$ 4,470,553
% Collected		86.30%
% Collected by Applying the Security Deposit		0.00%
% Deferred		0.00%
% Recorded as Bad Debt		0.00%
% Abated		0.00%
Office and Retail | Subsequent Event | Three Months Ended June 30, 2020
Unusual or Infrequent Item, or Both [Line Items]
Rental and other property income billed to tenants, additionally collected	5.70%
Office and Retail | Subsequent Event | July 2020
Unusual or Infrequent Item, or Both [Line Items]
Rental and other property income billed to tenants, additionally collected	5.10%
Parking
Unusual or Infrequent Item, or Both [Line Items]
Rental and Other Property Income Billed to Tenants			$ 978,117
% Collected			21.90%
% Collected by Applying the Security Deposit			0.00%
% Deferred			0.00%
% Recorded as Bad Debt			49.60%
% Abated			12.70%
Parking | Subsequent Event
Unusual or Infrequent Item, or Both [Line Items]
Rental and Other Property Income Billed to Tenants		$ 360,789
% Collected		28.80%
% Collected by Applying the Security Deposit		0.00%
% Deferred		0.00%
% Recorded as Bad Debt		0.00%
% Abated		0.00%