Transactions with Related Parties (Details Textual) - USD ($) $ in Thousands				1 Months Ended	2 Months Ended	3 Months Ended		6 Months Ended
		Mar. 13, 2014	Mar. 02, 2014	Jan. 31, 2014	Mar. 12, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Related Party Transaction [Line Items]
Business management fee						$ 0	$ 12	$ 0	$ 2,605
Consulting agreement fee per month								$ 200
Date of Self-Management Transaction Event		Mar. 12, 2014
Service agreement termination notice window in days								60 days
Reimbursement for property manager compensation and other expenses					$ 249
Reimbursement for business manager compensation and other expenses					$ 3,401
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Business management fee incurred, gross				$ 3,333
Investigation Costs									739
Business management fee	[1]					0	12	$ 0	$ 2,605
Payment to related party								0.20%
Percentage Of Gross Income Generated By Multi-Tenant Office Property									3.50%
Effective hiring date of property manager employees			Mar. 01, 2014
Percentage Of Gross Income Generated By Multi-Tenant Retail Property									3.50%
Reimbursement to property managers							$ 904		$ 3,295
Inland Bank and Trust [Member]
Related Party Transaction [Line Items]
Deposited in Inland Bank and Trust						$ 377		$ 377		$ 376

[1] In connection with the closing of the Master Modification Agreement and termination of the business management agreement, the Company paid a business management fee for January 2014, which totaled approximately $3,333. The Company did not pay a business management fee subsequent to January 31, 2014. Pursuant to the letter agreement dated May 4, 2012, the business management fee was reduced for investigation costs exclusive of legal fees incurred in conjunction with the SEC matter. The Master Modification Agreement contained a ninety-day reconciliation of certain payments and reimbursements, including the January 2014 business management fee. The reconciliation was completed during the three months ended June 30, 2014, which resulted in $739 of SEC-related investigation costs and an adjusted January 2014 business management fee expense of $2,605. Pursuant to the March 12, 2014 Self-Management Transactions, the May 4, 2012 letter agreement by the Business Manager has been terminated.