The Company and Basis of Presentation - Additional Information (Details) (USD $)	9 Months Ended
	Sep. 30, 2013 Markets	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Accounting Policies [Abstract]
Number of market for products	50
Cash and cash equivalents	$ 18,654,000	$ 22,241,000	$ 25,941,000	$ 20,666,000
Anticipated cash flow from operations and other working capital	$ 37,400,000