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Revenues and Trade Receivables, Net (Tables)
 12 Months Ended
Dec. 31, 2021
Revenues and Trade Receivables, Net [Abstract]  
Summary of Revenue
The Company’s revenue was comprised of the following:

 Year Ended December 31,
 20212020
Manufacture and supply revenue$35,312 $24,881 
License and royalty revenue5,380 14,055 
Co-development and research fees1,635 1,264 
Proprietary product sales, net8,505 5,649 
Revenues$50,832 $45,849 
Disaggregation of Revenue The following table provides disaggregated net revenue by geographic area:
 Year Ended December 31,
 20212020
United States$42,860 $40,956 
Ex-United States7,972 4,893 
Revenues $50,832 $45,849 
Summary of Accounts Receivable, Net
Trade and other receivable, net consist of the following:

 December 31,
 20212020
Accounts receivable$9,678 $4,330 
Contract and other receivables3,087 3,081 
Less: allowance for bad debt(40)(40)
Less: sales-related allowances(605)(416)
Trade and other receivables, net$12,120 $6,955 
Changes in Allowance for Bad Debts
The following table presents the changes in the allowance for bad debt:

 December 31,
 20212020
Allowance for doubtful accounts at beginning of year$40 $124 
Additions charged to bad debt expense— 198 
Write-downs charged against the allowance— (282)
Allowance for doubtful accounts at end of year$40 $40 
Summary of Sales-related Allowances
The following table presents the changes in sales-related allowances:

 December 31,
 20212020
Balance at December 31, 2020$416 $203 
Provision related to sales in 20211,209 731 
Credits and payments(1,020)(518)
Balance at December 31, 2021$605 $416