Stockholders' Equity (Details 1)	6 Months Ended
Stockholders' Equity (Details 1)	Jun. 30, 2017 $ / shares shares
Exercise Price per Share \| $ / shares	$ 8.45
Shares Subject to purchase \| shares	2,340,828
Warrant 1 [Member]
Exercise Price per Share \| $ / shares	$ 7.12
Expiration Date	May 18, 2018
Shares Subject to purchase \| shares	702,247
Warrant 2 [Member]
Exercise Price per Share \| $ / shares	$ 9.00
Expiration Date	May 18, 2019
Shares Subject to purchase \| shares	1,605,131
Warrant 3 [Member]
Exercise Price per Share \| $ / shares	$ 10.00
Expiration Date	Nov. 21, 2019
Shares Subject to purchase \| shares	33,450