The Company and Basis of Presentation (Private Placement Offering) (Details) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended
	Mar. 15, 2017 USD ($) $ / shares shares	Apr. 30, 2016	Mar. 31, 2017 USD ($) $ / shares
Exercise price of warrant | $ / shares			$ 10.40
Class of Warrant or Right, Warrant Term			5 years
Reverse stock split
Reverse stock split, ratio		0.320615582
Private placement
Issuance of stock (in shares) | shares	1,324,256
Price per issue and sold units | $ / shares	$ 9.47
Gross proceeds | $	$ 12,500		$ 8,979
Number of shares per unit | shares	1
Number of warrants per unit | shares	0.75
Exercise price of warrant | $ / shares	$ 10.40
Class of Warrant or Right, Warrant Term	5 years