Accounts Receivable, net (Details) - Allowance for doubtful accounts - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of the period	$ 44	$ 95
Additions to expense	28	40
(Write offs) / Recoveries	(70)	(91)
Balance at end of the period	$ 2	$ 44