Summary of Significant Accounting Policies (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended												12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2009	Sep. 30, 2009	Jun. 30, 2012 item	Jun. 30, 2011	Jun. 30, 2010
Summary of Significant Accounting Policies
Number of business segments													1
Number of reportable segments													1
Number of operating segments													1
Segment information
Total	$ 35,690	$ 30,688	$ 27,734	$ 28,878	$ 25,507	$ 25,893	$ 30,039	$ 25,396	$ 33,760	$ 31,266	$ 28,717	$ 31,435	$ 122,990	$ 106,835	$ 125,178
Migraine Headache
Segment information
Total													5,971	8,654	9,855
Glaucoma
Segment information
Total													4,252	3,118	2,025
Gallstone Prevention
Segment information
Total													5,991	5,370	2,190
Prescription Vitamin
Segment information
Total														1,838	5,640
Cardiovascular
Segment information
Total													18,142	12,553	20,996
Thyroid Deficiency
Segment information
Total													50,849	47,051	52,225
Antibiotic
Segment information
Total													6,724	6,101	6,449
Pain Management
Segment information
Total													20,870	14,747	14,129
Obesity
Segment information
Total													3,755	3,164	3,612
Other
Segment information
Total													$ 6,436	$ 4,239	$ 8,057