Basis of Presentation and Summary of Significant Accounting Policies (Textual) (Details) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 operating_segment reporting_unit	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Line Items]
Maturity Date of Highly Liquid Investments			3 months
Cash and Cash Equivalents, at Carrying Value	$ 21,522,000	$ 26,911,000	$ 21,522,000	$ 26,911,000	$ 22,130,000	$ 32,003,000
Cash	6,900,000		6,900,000
Money market funds	14,600,000		14,600,000
Number of Operating Segments			1
Number of Reportable Segments			1
Goodwill Impairment					0
Benefit from income taxes	$ (253,000)	$ (35,000)	$ 314,000	$ 41,000
Intellectual Property [Member]
Accounting Policies [Line Items]
Percentage of Undiscounted Cash Flows Greater Than Carry Value of Asset Group					37.00%