Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2017	Dec. 31, 2016	Dec. 31, 2015
Equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000	10,000,000
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	150,000,000	150,000,000	150,000,000
Common stock, shares issued (in shares)	38,000,663	38,000,663	38,000,663
Common stock, shares outstanding (in shares)	38,000,663	38,000,663	38,000,663
Class A Convertible Preferred Stock [Member]
Equity:
Preferred stock, shares issued (in shares)	6,750,000	3,250,000	3,250,000
Preferred stock, shares outstanding (in shares)	6,750,000	3,250,000	3,250,000
Class B Convertible Preferred Stock [Member]
Equity:
Preferred stock, shares issued (in shares)	250,000
Preferred stock, shares outstanding (in shares)	250,000