Annual report pursuant to Section 13 and 15(d)

Stock Based Awards (Tables)

Stock Based Awards (Tables)

12 Months Ended

Dec. 31, 2022

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 years ended December 31, 2022 and 2021 (table 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		190			148		$	30.36	$	29
Increase in authorized options		416			-			-		-
Granted		(87	)		86			13.32		-
Expired		81			-			-		-
Cancelled		29			(29	)		26.16		-
Balance at December 31, 2021		629			205		$	23.76	$	-
Increase in authorized options		-			-			-		-
Granted		(158	)		158			5.04		-
Expired		12			(12	)		33.24		-
Cancelled		1			(1	)		15.36		9
Balance at December 31, 2022		484			350		$	15.36	$	9

Schedule of Weighted Average Assumptions Used for Grants

Assumptions:
Weighted average per share grant date fair value	$	12.01
Risk-free interest rate		2.89	%
Expected dividend yield		0.00	%
Expected volatility		111.96	%
Expected terms (in years)		5.83

Assumptions:
Weighted average per share grant date fair value	$	11.16
Risk-free interest rate		0.91	%
Expected dividend yield		0.00	%
Expected volatility		114.62	%
Expected terms (in years)		5.83

Schedule of Common Stock Reserved for Future Issuance

The following table presents information concerning common stock available for future issuance as of December 31, (in thousands):

	2022		2021

Stock options issued and outstanding		350		206
Shares authorized for future option grants		484		628
Warrants outstanding		20		20
Total		854		854