Schedule II - Valuation and Qualifying Accounts (Details) - Allowance for Doubtful Accounts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of Period	$ 569	$ 378	$ 137
Charged to Provision Accounts	295	315	694
Deduction or Other	(55)	(124)	(453)
Balance at End of Period	$ 809	$ 569	$ 378