Accrued expenses and other current liabilities

12 Months Ended

Dec. 31, 2022

Payables And Accruals [Abstract]

Accrued expenses and other current liabilities

6. Accrued expenses and other current liabilities

Other accrued expenses and other current liabilities consisted of the following (in thousands):

	As of December 31,
	2022		2021
Payroll and related costs	$	8,748	$	6,549
Accrued contract termination costs		4,700		-
Research and development expenses		978		-
Professional fees		415		2,571
Operating lease liabilities		1,390		1,361
Prepaid royalty		1,011		-
Other		1,604		2,857
Accrued expenses and other current liabilities	$	18,846	$	13,338

We expense advertising costs when incurred, which amounted to $13.2 million and $39.7 million for 2022 and 2021, respectively, which was reclassified to discontinued operations as a result of business shift following transaction with Mayne Pharma.