Schedule II Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2021

Schedule II-Valuation and Qualifying Accounts

Schedule II-Valuation and Qualifying Accounts

	Balance at		Charged to				Balance at
	Beginning of		Costs and				End of
	Period		Expenses		Deductions		Period
Year ended December 31, 2021
Allowance for doubtful accounts and returns	$	—	$	—	$	—	$	—
Deferred tax valuation allowance		9,133		780		2,224		7,689
Year ended December 31, 2020
Allowance for doubtful accounts and returns	$	818	$	—	$	818	$	—
Deferred tax valuation allowance		8,327		806		—		9,133
Year ended December 31, 2019
Allowance for doubtful accounts and returns	$	—	$	818	$	—	$	818
Deferred tax valuation allowance		6,835		1,492		—		8,327