Accrued Expenses

12 Months Ended

Dec. 31, 2019

Payables and Accruals [Abstract]

Accrued Expenses

Accrued Expenses

Accrued expenses consist of the following (in thousands):

	December 31,
	2018		2019
Royalties	$	10,245	$	14,061
Inventory liabilities	7,084		7,954
Interest expense	878		4,535
Salaries and employee benefits	2,891		3,017
Professional fees	1,671		2,115
Goods in transit	1,072		1,664
Unclaimed property liability	—		1,200
Sales commissions	398		669
Bonuses	1,152		570
Unearned revenue	561		557
Other	3,962		3,173
	$	29,914	$	39,515

In addition to royalties currently payable on the sale of licensed products during the year, the Company records a liability as accrued royalties for the estimated shortfall in achieving minimum royalty guarantees pursuant to certain license agreements (see Note 17 - Commitments).