Condensed Consolidated Balance Sheets (Parenthetical)	Sep. 30, 2017 $ / shares shares
Common stock, shares outstanding	13,222,583
Class A
Common stock, par value | $ / shares	$ 0.001
Common stock authorized	125,000,000
Common Stock, Shares, Issued	13,222,583
Common stock, shares outstanding	13,222,583
Class B
Common stock, par value | $ / shares	$ 0.001
Common stock authorized	8,401,000
Common Stock, Shares, Issued	8,268,188
Common stock, shares outstanding	8,268,188