SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

The following table sets forth the fair value of the Company’s financial assets measured at fair value on a recurring basis based on the three-tier fair value hierarchy (in thousands):

	Level 1 (1)
	June 30, 2020		December 31, 2019
Assets:
Money market funds	$	21,570	$	7,232
U.S. treasuries	—		4,497
Total	$	21,570	$	11,729

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(1) No assets as of each respective date were identified as Level 2 or 3 based on the three-tier fair value hierarchy. The Company had no financial liabilities measured at fair value on a recurring basis as of each respective date.

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table sets forth the potential common shares excluded from the calculation of net income (loss) per common share, because their inclusion would be anti-dilutive:

	Three and Six Months Ended June 30,
	2020	2019
Outstanding warrants	19,556,108	349,074
Outstanding options	1,578,231	625,428
Unvested restricted stock units	253,045	—
Redeemable convertible preferred stock (as converted into common stock)	—	1,256,466
Promissory notes (as converted into common stock)	—	168,832
Total	21,387,384	2,399,800