Stockholders' Equity - Warrants (Details)	6 Months Ended
	Jun. 30, 2017 $ / shares shares
Warrants Outstanding
Outstanding at the beginning of the period (in shares) | shares	6,750
Exercised (in shares) | shares	0
Canceled/forfeited (in shares) | shares	(6,750)
Expired (in shares) | shares	0
Outstanding at the end of the period (in shares) | shares	0
Weighted Average Exercise Price During Period
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 4.30
Exercised (in dollars per share) | $ / shares	0.00
Canceled/forfeited (in dollars per share) | $ / shares	4.30
Expired (in dollars per share) | $ / shares	0.00
Outstanding at the end of the period (in dollars per share) | $ / shares	$ 0.00