Revenue, Contract Balances (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Revenue [Abstract]
Revenue recognized	$ 600
Contract liabilities [Abstract]
Unbilled receivables, current	342	$ 314
Unbilled receivables, non-current	185	308
Customer pre-payments	(320)	(99)
Deferred revenue, current	(887)	(805)
Deferred revenue, non-current	(169)	(186)
Total net contract liabilities	$ (849)	$ (468)