Summary of Significant Accounting Policies - Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 segment	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2009
Accounting Policies [Abstract]
Letter of credit				$ 200,000
Restricted cash	200,000	200,000
Allowance for doubtful accounts	18,000	2,000
Concentration Risk [Line Items]
Advertising expense	597,000	522,000	1,180,000
Capitalized advertising	2,000	159,000
Foreign currency gains (losses)	$ 95,000	$ 68,000	$ (86,000)
Number of operating segments	1
Pharmaceutical Distributor, Customer One [Member] | Sales Revenue, Product Line [Member]
Concentration Risk [Line Items]
Concentration risk	30.50%
Pharmaceutical Distributor, Customer Two [Member] | Sales Revenue, Product Line [Member]
Concentration Risk [Line Items]
Concentration risk	30.30%
Pharmaceutical Distributor, Customer Three [Member] | Sales Revenue, Product Line [Member]
Concentration Risk [Line Items]
Concentration risk	16.60%
Retail Customer [Member] | Sales Revenue, Product Line [Member]
Concentration Risk [Line Items]
Concentration risk	14.60%
Retail Customer [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration risk	10.30%
Pharmaceutical Distributor, Customer One, Two and Three [Member] | Accounts Receivable [Member]
Concentration Risk [Line Items]
Concentration risk	84.90%