Revenue, Contract Balances (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Revenue [Abstract]
Revenue recognized	$ 900
Contract liabilities [Abstract]
Unbilled receivables, current	322	$ 392
Unbilled receivables, non-current	150	163
Customer pre-payments	(7)	(101)
Deferred revenue, current	(1,205)	(1,329)
Deferred revenue, non-current	(148)	(143)
Total net contract liabilities	$ (888)	$ (1,018)