Annual report pursuant to Section 13 and 15(d)

ACCRUED EXPENSES (Details)

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ACCRUED EXPENSES (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
ACCRUED EXPENSES    
Accrued employee compensation $ 2,702 $ 2,041
Research and development - license fees 870  
Accrued royalties payable 3,833 2,682
Accrued coupon and rebates 10,603 12,869
Return reserve 3,240 2,580
Other 1,485 1,326
Total accrued expenses $ 22,733 $ 21,498