Subsequent Events (Details) - USD ($)	Jul. 22, 2015	May. 04, 2015	Aug. 05, 2015	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2013	Jun. 17, 2013
Subsequent Event [Line Items]
Investment in joint venture				$ 320,000	$ 320,000
Municipal City of Suqian [Member]
Subsequent Event [Line Items]
Investment in joint venture					$ 320,000
Thornton, Colorado Building [Member]
Subsequent Event [Line Items]
Sale leaseback, sales price		$ 11,500,000
Sale leaseback transaction, lease term		10 years
Common Stock [Member]
Subsequent Event [Line Items]
Securities called by rights						262,500	43,750
Subsequent Event [Member] | Municipal City of Suqian [Member]
Subsequent Event [Line Items]
Investment in joint venture			$ 320,000
Subsequent Event [Member] | Common Stock [Member] | Rights [Member]
Subsequent Event [Line Items]
Securities called by rights	8,300,000
Subsequent Event [Member] | Common Stock [Member] | Rights Exercisable Immediately [Member]
Subsequent Event [Line Items]
Securities called by rights	1,500,000
Rights exercisable during period	750,000
Duration of measurement period	30 days
Subsequent Event [Member] | Common Stock [Member] | Rights Exercisable In Future Period [Member]
Subsequent Event [Line Items]
Securities called by rights	6,800,000
Rights exercisable during period	1,100,000
Duration of measurement period	30 days