Consolidated Statements of Stock and Stockholders' Deficit (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Series G Redeemable Preferred Stock
Preferred stock issuance costs		$ 130,000
Class A and B Common Stock
Issuance of common stock upon initial public offering, offering costs	$ 4,024,000