Annual report pursuant to Section 13 and 15(d)

Selected Quarterly Financial Data (Unaudited) Selected Quarterly Financial Data-Additional Information (Details)

v2.4.0.8
Selected Quarterly Financial Data (Unaudited) Selected Quarterly Financial Data-Additional Information (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]                      
Net revenue $ 31,574 $ 31,765 $ 29,773 $ 26,534 $ 24,830 $ 27,795 $ 24,420 $ 20,683 $ 119,646 $ 97,728 $ 71,937
Gross Profit 19,124 19,831 17,296 16,712 15,704 17,467 15,122 12,353 72,963 60,646 45,247
Net loss $ (2,647) $ (4,882) $ (2,904) $ (2,300) $ (4,581) $ 450 $ (2,559) $ (6,562) $ (12,733) $ (13,252) $ (22,024)
Earnings Per Share, Basic $ (0.08) $ (0.14) $ (0.09) $ (0.07) $ (0.14) $ 0.01 $ (0.08) $ (0.20) $ (0.37) $ (0.40) $ (0.68)
Earnings Per Share, Diluted $ (0.08) $ (0.14) $ (0.09) $ (0.07) $ (0.14) $ 0.01 $ (0.08) $ (0.20) $ (0.37) $ (0.40) $ (0.68)