Basis of Presentation and Summary of Significant Accounting Policies - Summary of Information about Contract Balances (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Accounts receivable
Opening Balance	$ 1,051	$ 916
Increase/(decrease), net	(263)	135
Ending Balance	788	1,051
Unbilled receivable
Opening Balance	219	868
Increase/(decrease), net	2	(649)
Ending Balance	221	219
Contract assets (current)
Opening Balance	93	195
Increase/(decrease), net	1	(102)
Ending Balance	94	93
Contract assets (long-term)
Opening Balance	93	110
Increase/(decrease), net	(57)	(17)
Ending Balance	36	93
Deferred revenue (current)
Opening Balance	57	200
Deferred revenue	(27)	(143)
Ending Balance	$ 30	$ 57

Increas decrease in contract assets (long-term).

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- Definition

Increase Decrease in Contract Assets Current.

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- Definition

Increase (decrease), unbilled receivable.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right to consideration is unconditional, classified as current.

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- Definition

The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

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Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

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- Definition

Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

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