XML 63 R44.htm IDEA: XBRL DOCUMENT v3.22.4

Stock Plans (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-based Compensation

The following table summarizes stock-based compensation expense related to all of the Company’s stock awards included by operating expense categories, as follows:

									Twelve Months Ended December 31,
																					2022						2021						2020
Cost of revenues																					$	788					$	1,593					$	2,409
Research and development																					1,728						2,862						4,380
Selling, general and administrative																					2,945						4,850						4,348
Total stock-based compensation expense																					$	5,461					$	9,305					$	11,137

The following table summarizes stock-based compensation expense related to all of the Company’s stock awards included by award types, as follows:

									Twelve Months Ended December 31,
																					2022						2021						2020
Stock options																					$	2,570					$	3,748					$	1,308
Restricted stock awards																					2,899						5,364						9,743
Performance Based Cash Units																					(8)						193						86
Total stock-based compensation before taxes																					$	5,461					$	9,305					$	11,137
Tax benefit																					$	1,062					$	1,750					$	1,815

Schedule of Fair Value Assumptions

The weighted-average assumptions used in the Black-Scholes option pricing model are as follows: 

												Twelve Months Ended December 31,
																								2022						2021						2020
Expected stock price volatility																								74.1		%				82.3		%				74.5		%
Risk-free interest rate																								3.1		%				0.7		%				1.0		%
Expected life of options (in years)																								4.15						4.23						4.47
Expected dividend yield																								0.0		%				0.0		%				0.0		%
Weighted-average fair value of the options																								$	0.71					$	1.83					$	2.79

Schedule of Information about Stock Options Outstanding

The following table summarizes information about stock options outstanding as of December 31, 2022: 

Options						Number of Options						Weighted-Average Exercise Price						Weighted-Average Remaining Contractual Term (Years)						Aggregate Intrinsic Value
Outstanding at December 31, 2021						4,715						$	6.53
Options Granted						3,039						1.22
Options Exercised						—						—
Options Cancelled						(1,113)						8.33
Outstanding at December 31, 2022						6,641						$	3.80					5.28						$	—
Vested and exercisable at December 31, 2022						2,445						$	7.08					3.84						$	—

Schedule of Unvested Restricted Stock and Performance Shares Activity

A summary of the Company’s unvested restricted stock at December 31, 2022, and changes during the year ended December 31, 2022, is presented below:

Unvested Restricted Stock						Number of Awards						Weighted- Average Grant Date Fair Value
Unvested at December 31, 2021						2,574						$	3.57
Granted						3,205						1.25
Granted adjustment1						63						1.64
Vested						(805)						4.28
Forfeited						(652)						2.74
Unvested at December 31, 2022						4,385						$	1.82

_____________________________

1    Represents performance based cash units grants that vested and were paid out in form of shares of stock during the period.

A summary of the Company’s unvested performance-based cash units at December 31, 2022 and changes during the year ended December 31, 2022, is presented below:

Unvested Cash Units						Number of Awards						Period end Fair Value
Unvested at December 31, 2021						1,996						$	2.44
Granted						4,672
Granted adjustment 1						(216)
Vested						(63)
Forfeited						(517)
Unvested at December 31, 2022						5,872						$	0.62

_____________________________

1    Includes changes in the unvested units due to performance adjustments.

X

- References

No definition available.

+ Details

Name:	us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_NonvestedRestrictedStockSharesActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfCompensationCostForShareBasedPaymentArrangementsAllocationOfShareBasedCompensationCostsByPlanTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration