Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accrued expenses and other liabilities
Research and development related costs	$ 789	$ 1,055
Payroll and related costs	5,085	4,049
Accounting, tax and audit services	736	470
Manufacturing and inventory	592	4,779
Product returns	2,282	349	$ 33
Government rebates	1,751	135
Other accrued gross to net	1,090	178
Other	1,504	1,829
Total other current liabilities	$ 13,829	$ 12,844