Employee Stock Purchase Plan (Details)	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of shares covered under the Employee Stock Purchase Plan (ESPP)		250,000
Purchase price per share as percentage of fair market value	95.00%
Issuance of shares under employee stock purchase plan (in shares)	13,507
Shares available for future issuance under the ESPP	236,493