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Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2023

Stock-Based Compensation [Abstract]

Schedule of stock option activity under plans

						Options Outstanding
										Weighted
		Shares								Average
		Available				Number of				Exercise
		for Grant				Shares				Prices
Balance as of December 31, 2022			1,556				1,499			$	3.32
RSUs granted			(80	)			—			$	—
RSUs cancelled and returned to the Plans			51				—			$	—
Options cancelled			—				(17	)		$	6.76
Balance as of March 31, 2023			1,527				1,482			$	3.28

Schedule of RSU activity under plans

						Weighted
						Average
		Number of				Grant-Date
		Shares				Fair Value
Non-vested shares as of December 31, 2022			1,057			$	2.06
Granted			80			$	0.99
Vested			(51	)		$	2.07
Non-vested shares as of March 31, 2023			1,086			$	1.98

Schedule of significant ranges of outstanding and exercisable options

		Options Outstanding												Options Exercisable
						Weighted
						Average
						Remaining				Weighted								Weighted
						Contractual				Average								Average				Aggregate
		Number				Life				Exercise				Number				Exercise				Intrinsic
Range of Exercise Price		Outstanding				(in Years)				Price				Exercisable				Price				value
$1.57 - $14.99			1,472				7.41			$	2.64				920			$	2.60			$	—
$15.00 - $25.59			4				0.49			$	15.00				4			$	15.00			$	—
$25.60 - $143.99			1				1.43			$	50.00				1			$	50.00			$	—
$144.00 - $409.99			4				3.19			$	144.00				4			$	144.00			$	—
$410.00 - $924.00			1				1.45			$	410.00				1			$	410.00			$	—
$1.57 - $924.00			1,482				7.38			$	3.28				930			$	3.60			$	—

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- References

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- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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-Name Accounting Standards Codification
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