Revenues - Changes in Balances of Deferred Costs to Obtain and Fulfill Contracts (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($)
Deferred Costs to Obtain Contracts [Member]
Capitalized Contract Cost [Line Items]
Balance at beginning of period	$ 207
Costs deferred	244
Amortization	(107)
Balance at end of period	344
Deferred Costs to Fulfill Contracts [Member]
Capitalized Contract Cost [Line Items]
Balance at beginning of period	154
Costs deferred	41
Amortization	(64)
Balance at end of period	$ 131