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Revenue (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

Total revenue based on the disaggregation criteria described above are as follows (in thousands):

		Year ended December 31,
		2021				2020
Revenue by primary geographical market:
United States		$	2,215			$	330
Germany			536				25
Other European countries			111				110
Asia			145				1,114
Total		$	3,007			$	1,579
Revenue by timing of recognition:
Recognized at a point in time		$	2,991			$	1,515
Recognized over time			16				64
Total		$	3,007			$	1,579

Schedule of Contract Liabilities

Contract liabilities consisted of the following as of December 31, 2021 (in thousands):

		As of December 31, 2021
Contract liabilities, current		$	2,287
Contract liabilities, noncurrent			631
Total		$	2,918

The following table shows the significant changes in contract liabilities balance as of December 31, 2021 and 2020 (in thousands):

		Year ended December 31,
		2021				2020
Beginning balance		$	660			$	950
Revenue recognized that was included in the contract liabilities beginning balance			(570	)			(450	)
Increase due to invoices issued on performance obligations not yet satisfied during the period			2,828				160
Ending balance		$	2,918			$	660

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- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

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X

- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

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- References

No definition available.

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