v3.21.2

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]
Revenue	$ 0	$ 0	$ 400	$ 62
Transferred at Point in Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	400	62
Transferred over Time [Member]
Disaggregation of Revenue [Line Items]
Revenue	0		0	0
North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	62
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0	$ 400	$ 0

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+ References

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-Publisher FASB
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