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REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenue	$ 8,959	$ 6,429	$ 26,430	$ 17,366
Revenue recognized	6,200	5,000	14,700	11,700
Licensing, support and maintenance
Disaggregation of Revenue [Line Items]
Total revenue	8,136	5,211	24,353	14,005
Variable royalties
Disaggregation of Revenue [Line Items]
Revenue recognized	739	832	1,913	2,679
Other
Disaggregation of Revenue [Line Items]
Total revenue	$ 84	$ 386	$ 164	$ 682

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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