Company Background and Overview - Additional Information (Details)		1 Months Ended	12 Months Ended
	Aug. 01, 2014	Aug. 31, 2014	Dec. 31, 2015 item
Company Background And Overview [Line Items]
Number of service offerings			2
Reverse stock split of common stock and treasury stock	0.2	0.2
Common Stock
Company Background And Overview [Line Items]
Reverse stock split of common stock and treasury stock			0.20
Stockholders equity, reverse stock split description		1-for-5