Credit Risk Concentrations	12 Months Ended
Dec. 31, 2017
Risks And Uncertainties [Abstract]
Credit Risk Concentrations	13. Credit Risk Concentrations The Company maintained bank balances that, at times, exceeded the federally insured limit during the years ended December 31, 2017, 2016 and 2015. The Company has not experienced losses relating to these deposits and management does not believe that the Company is exposed to any significant credit risk with respect to these amounts. The Company’s rental property is managed by the Manager and the Asset Manager as described in Note 3. Management fees and acquisition expenses paid to the Manager and the Asset Manager represent 20%, 25% and 27% of total operating expenses for the years ended December 31, 2017, 2016, and 2015, respectively. The 2017 amount does not include acquisition costs paid to the Asset Manager as they were capitalized in accordance with ASU 2017-01 (see Note 2 and 3). The Company has mortgages and notes payable with four institutions that comprise 27%, 17%, 13% and 11% of total mortgages and notes payable at December 31, 2017. The Company had mortgages and notes payable with four institutions that comprised 20%, 18%, 12%, and 11% of total mortgages and notes payable at December 31, 2016. The Company had mortgages and notes payable with five institutions that comprised 22%, 13%, 13%, 11%, and 10% of total mortgages and notes payable at December 31, 2015. For the years ended December 31, 2017, 2016, and 2015, the Company had no individual tenants or common franchises that accounted for more than 10% of total revenues.

13. Credit Risk Concentrations

The Company maintained bank balances that, at times, exceeded the federally insured limit during the years ended December 31, 2017, 2016 and 2015. The Company has not experienced losses relating to these deposits and management does not believe that the Company is exposed to any significant credit risk with respect to these amounts.

The Company’s rental property is managed by the Manager and the Asset Manager as described in Note 3. Management fees and acquisition expenses paid to the Manager and the Asset Manager represent 20%, 25% and 27% of total operating expenses for the years ended December 31, 2017, 2016, and 2015, respectively. The 2017 amount does not include acquisition costs paid to the Asset Manager as they were capitalized in accordance with ASU 2017-01 (see Note 2 and 3). The Company has mortgages and notes payable with four institutions that comprise 27%, 17%, 13% and 11% of total mortgages and notes payable at December 31, 2017. The Company had mortgages and notes payable with four institutions that comprised 20%, 18%, 12%, and 11% of total mortgages and notes payable at December 31, 2016. The Company had mortgages and notes payable with five institutions that comprised 22%, 13%, 13%, 11%, and 10% of total mortgages and notes payable at December 31, 2015. For the years ended December 31, 2017, 2016, and 2015, the Company had no individual tenants or common franchises that accounted for more than 10% of total revenues.