Stockholders' Equity (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014 Director	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2014	Nov. 06, 2012
Detachable Common Stock Warrant related to Term Loan [Abstract]
Warrants outstanding, beginning balance (in shares)	2,602	2,602
Partial exercises of Comvest Warrant (in shares)	(400)
Warrants outstanding, ending balance (in shares)	2,677	2,602	2,602
Warrants exercise price outstanding, beginning balance (in dollars per share)	$ 4.95	$ 4.95			$ 1.20
Warrants exercise price (in dollars per share)	$ 5.14	$ 4.95	$ 4.95		$ 1.20
Warrants exercise price outstanding, ending balance (in dollars per share)	$ 5.14	$ 4.95	$ 4.95		$ 1.20
Weighted Average Remaining Life (Years)	4 years 6 months	5 years 4 months 2 days	6 years 4 months 2 days
Initial fair value of warrants issued	$ 1,108			$ 589
Change in discount on Term Loan and Common Stock Warrants	$ 305
Revised exercise price of warrant at trailing average stock price (in hundredths)	150.00%
Duration of trailing average stock price related to revised exercise price of warrants	30 days
Number of current directors or stockholders as insider participants	5
DS Services [Member]
Detachable Common Stock Warrant related to Term Loan [Abstract]
Grant of DS Services Warrant (in shares)	475
Warrants exercise price (in dollars per share)	$ 3.04
Warrants exercise price outstanding, ending balance (in dollars per share)	$ 3.04
Warrants expiry date	Jan. 01, 2021
Comvest Warrant [Member]
Detachable Common Stock Warrant related to Term Loan [Abstract]
Grant of DS Services Warrant (in shares)	1,731
Warrants outstanding, ending balance (in shares)	1,331
Warrants exercise price (in dollars per share)	$ 2.30
Warrants exercise price outstanding, ending balance (in dollars per share)	$ 2.30
Warrants expiry date	Apr. 30, 2020
Issuance of common stock (in shares)	292
Comvest Warrant [Member] | Insider Participants [Member]
Detachable Common Stock Warrant related to Term Loan [Abstract]
Grant of DS Services Warrant (in shares)	131