Accrued Expenses and Other Current Liabilities

6 Months Ended

Jun. 30, 2021

Payables And Accruals [Abstract]

Accrued Expenses and Other Current Liabilities

5. Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities were comprised of the following (in thousands):

	June 30, 2021		December 31, 2020
Salary and related expenses	$	10,318	$	11,250
Discounts and allowances for commercial product sales		4,035		3,688
Accrued interest		2,132		519
Deferred lease liability		1,351		1,422
Milestone rights liability — current		1,088		1,337
Danbury facility buildout		1,055		—
Professional fees		521		533
Sales and marketing services		347		99
Other		1,559		859
Total accrued expenses and other current liabilities	$	22,406	$	19,707

Included in salary and related expenses is approximately $1.0 million of deferred social security taxes as permitted under the CARES Act.  The Company was permitted to defer the employer share of social security taxes otherwise owed on dates beginning March 27, 2020 and ending December 31, 2020.  The amount of the deferral was based on wages paid from April through December 2020.  The Company received notification of forgiveness by the SBA for the full principal balance of the PPP loan as discussed in Note 6 – Borrowings.  Therefore, the deferred social security taxes will be repaid in August 2021.