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Other Accrued Liabilities (Tables)
 3 Months Ended
Mar. 31, 2022
Accrued Liabilities, Current [Abstract]  
Other Accrued Liabilities
Other accrued expenses consisted of the following (in thousands):
 March 31,
2022		December 31,
2021
FOTIVDA U.S. Product Royalties2,420 2,011 
FOTIVDA Federal Rebates, Customer Credits and Co-Pay Assistance2,187 1,170 
Professional Fees1,497 1,107 
Other937 1,133 
Total7,041 5,421