Summary of Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) Contract shares	Jun. 30, 2016 USD ($) shares	Dec. 31, 2016 USD ($)
Accounting Policies [Abstract]
Number of contracts accounted for management fees | Contract			1
Management fees earned, net	$ 34,057	$ 63,036	$ 78,145	$ 150,725
Management fees earned, gross	878,563	$ 1,143,667	$ 2,173,022	$ 2,265,310
Potentially dilutive securities include options and warrants | shares			3,095,132	3,261,023
Inventories waste disposal equipment	11,271		$ 11,271		$ 12,996
Reserve for inventory obsolescence	$ 0		$ 0