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Market Concentrations
 12 Months Ended
Dec. 31, 2013
Risks and Uncertainties [Abstract]  
Market Concentrations
Market Concentrations
The Company currently focuses on acquiring, developing, and commercializing branded prescription products for the acute care and gastroenterology markets. The Company’s principal financial instruments subject to potential concentration of credit risk are accounts receivable, which are unsecured, and cash equivalents. The Company’s cash equivalents consist primarily of money market funds. Certain bank deposits may at times be in excess of the Federal Deposit Insurance Corporation insurance limits.
The Company’s primary customers are wholesale pharmaceutical distributors in the U.S.  Total gross revenues by customer for each customer representing 10% or more of consolidated gross revenues are summarized below for the years ended December 31:
 
 
2013
 
2012
 
2011
 
 
 
 
 
 
 
Customer 1
 
19%
 
35%
 
36%
Customer 2
 
23%
 
30%
 
28%
Customer 3
 
23%
 
28%
 
31%
Customer 4
 
24%
 
1%
 
—%

The Company’s accounts receivable, net of allowances, due from these four customers at December 31, 2013 and 2012 was 85.3% and 81%, respectively.