Consolidated Statements Of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net revenues:
Product sales, net	$ 131,973	$ 99,414	$ 123,171
Promotion services	2,817	27,644	33,098
Total net revenues	134,790	127,058	156,269
Operating expenses:
Cost of product sales	23,002	17,668	21,996
Sales and marketing	48,477	55,240	70,327
Research and development	14,581	8,044	5,145
General and administrative	22,746	32,496	21,344
Restructuring charges		1,181	1,096
Estimated SEC and DOJ investigation loss (Note 19)		2,000
Intangible asset impairment (Note 7)			42,728
Amortization of acquired intangible assets	0	0	2,645
Change in fair value of contingent consideration (Note 3)			(15,422)
Total operating expenses	108,806	116,629	149,859
Income from operations	25,984	10,429	6,410
Non-operating income (expense):
Interest and investment income	161	85	89
Interest and investment expense	(48)	(103)	(185)
Other income (expense), net	280	2,795	(42)
Income before income tax provision (benefit)	26,377	13,206	6,272
Income tax provision (benefit)	1,169	2,242	(3,348)
Net income	$ 25,208	$ 10,964	$ 9,620
Basic net income per share	$ 0.49	$ 0.20	$ 0.17
Diluted net income per share	$ 0.48	$ 0.20	$ 0.16
Weighted average shares used in computing:
Basic net income per share	51,277	53,587	56,637
Diluted net income per share	52,684	54,936	58,483