Condensesd Consolidated Balance Sheets [Parenthetical] (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Adjustments for chargebacks and other allowances	$ 4,874	$ 5,104
Treasury Stock, Shares	9,233	9,233
Preferred Stock, Par or Stated Value Per Share	$ 0.0001	$ 0.0001
Preferred Stock, Shares Authorized	1,666,667	1,666,667
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common stock
Common Stock, Par Value (in dollars per share)	$ 0.0001	$ 0.0001
Common Stock, Authorized Shares	33,333,334	33,333,334
Common Stock, Issued Shares	11,292,215	9,629,174
Common Stock, Outstanding Shares	11,282,982	9,619,941
Class C special stock
Common Stock, Par Value (in dollars per share)	$ 0.0001	$ 0.0001
Common Stock, Authorized Shares	781,281	781,281
Common Stock, Issued Shares	10,864	10,864
Common Stock, Outstanding Shares	10,864	10,864