Quarterly report pursuant to Section 13 or 15(d)

Stock Based Awards (Tables)

Stock Based Awards (Tables)

9 Months Ended

Sep. 30, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity

The following table summarizes stock option transactions for the 2007 Plan and 2015 Plan, collectively, for the nine months ended September 30, 2021 (in thousands, except per share amounts):

	Number of Shares Available for Grant			Total Options Outstanding			Weighted Average Exercise Price		Aggregate Intrinsic Value
Balance at December 31, 2020		2,263			1,779		$	2.53	$	-
Increase in authorized options		5,000			-			-		-
Exercised		-			-			-		-
Granted		(1,037	)		1,037			1.11		-
Expired		976			-			-		-
Cancelled		341			(341	)		2.15		-
Balance at September 30, 2021		7,543			2,475		$	1.99		-

Schedule of Weighted Average Assumptions Used for Grants

The fair value of share option award is estimated using the Black-Scholes option pricing method based on the following weighted-average assumptions:


	Nine Months Ended September 30,
	2021			2020

Risk-Free interest rate		0.91	%		0.43	%
Expected dividend yield		0.00	%		0.00	%
Expected volatility		114.62	%		107.45	%
Expected term (in years)		5.8			5.9

Schedule of Common Stock Reserved Future Issuance

The following table presents information concerning common stock available for future issuance (in thousands) as of:

	September 30, 2021		September 30, 2020
Stock options issued and outstanding		2,475		1,801
Shares authorized for future option grants		7,543		2,718
Warrants outstanding		243		243
Total		10,261		4,762