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Market Concentrations
12 Months Ended
Dec. 31, 2020
Risks and Uncertainties [Abstract]  
Market Concentrations Market Concentrations
The Company is focused on the acquisition, development and commercialization of branded prescription products. 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 be in excess of the insurance limits provided by the Federal Deposit Insurance Corporation.
The Company’s primary customers are wholesale pharmaceutical distributors in the U.S.  Total revenues by customer for each customer representing 10% or more of consolidated revenues are summarized below for the years ended December 31:
202020192018
Customer 125%31%28%
Customer 225%28%25%
Customer 321%17%26%
*: less than 10% of total

The Company’s accounts receivable, net of allowances, due from the customers representing 10% or more of consolidated revenue was 60% and 59% at December 31, 2020 and 2019, respectively.