FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2020

Fair Value Disclosures [Abstract]

Quantitative inputs

The following table presents the quantitative inputs, which we classify in Level 3 of the fair value hierarchy, used in estimating the fair value of the warrants:

	June 30,		December 31,
	2020		2019
CBG Financing Warrants
Expected volatility	85.00	%	85.00	%
Risk-free interest rate	0.18	%	1.60	%
Expected remaining term (years)	0.23		0.73
CBG Acquisition Warrants
Expected volatility	75.00	%	75.00	%
Risk-free interest rate	0.23	%	1.65	%
Expected remaining term (years)	3.23		3.72

adding or subtracting five percentage points with regard to our estimate of expected volatility, or increases or decreases in our stock price of five percent, would not have resulted in changes to our estimates of fair value, except as follows:

	Increase		Decrease
Change in volatility
CBG Financing Warrants	$	130	$	130
CBG Acquisition Warrants	460		405
Change in stock price
CBG Financing Warrants	$	660	$	595
CBG Acquisition Warrants	290		230

Reconciliation of liabilities of warrants

The following table presents the change in the liability balance associated with our liability-classified warrants (in thousands):

	Six Months Ended June 30,		Year Ended December 31,
	2020		2019
Balance at beginning of period	$	115	$	1,383
Increase (decrease) in fair value	6,203		(1,268)
Balance at end of period	$	6,318	$	115

Reconciliation of earnout payments

The following table presents the change during the six months ended June 30, 2020 in the balance of the liability associated with the Earnout Payments (in thousands):

Balance at beginning of period	$	1,086
Interest accrued on unpaid balance	34
Balance at end of period	$	1,120