Concentration of Credit Risk (Tables)

12 Months Ended

Dec. 31, 2014

Concentration of Credit Risk [Abstract]

Future minimum lease payments receivable under noncancelable leases

As of December 31, 2014, minimum future lease revenue payments receivable under noncancelable leases were as follows:

Years ending
2015	$	22,938,700
2016		21,300,400
2017		17,937,600
2018		13,719,200
2019		12,860,000
Thereafter		37,596,300
	$	126,352,200