BUSINESS COMBINATION - Pro Forma (Details) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($) $ / shares
Business Combinations [Abstract]
Revenues	$ 0
Loss attributable to Menlo	12,043
SUPPLEMENTAL PRO FORMA COMBINED RESULTS OF OPERATIONS:
Revenues	1,750
Net loss	$ 37,641
Loss per share - basic (in USD per share) \| $ / shares	$ 0.62
Loss per share - diluted (in dollars per share) \| $ / shares	$ 0.62
Adjustments to the supplemental pro forma combined results of operations, included in the above, are as follows:
Transaction costs	$ (14,931)
Acceleration of stock based compensation	(7,199)
Total Adjustments	$ (22,130)

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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-Name Accounting Standards Codification
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