XML 42 R32.htm IDEA: XBRL DOCUMENT v3.23.2

STOCK-BASED COMPENSATION PLANS (Tables)

6 Months Ended

Jun. 30, 2023

STOCK-BASED COMPENSATION PLANS

Schedule of outstanding and exercisable number of options

​

​	​	​	​	​
​		Outstanding		Exercisable
​	​	Number of Options	​	Number of Options
​	​	(in thousands)	​	(in thousands)
Plan Category
2005 Stock Option Plan		211	​	211
2017 Stock Option Plan		351	​	350
Total		562	​	561

Schedule of stock-based compensation expenses recorded in the condensed consolidated statements of operations

The following summarizes stock-based compensation expenses recorded in the condensed consolidated statements of income (in thousands):

​

​	​	​	​	​	​	​	​	​	​	​	​	​
​	​	For the Three Months Ended June 30,						For the Six Months Ended June 30,
​		2023			2022			2023			2022
Cost of Revenue	​	$	7	​	$	12	​	$	15	​	$	27
Sales and marketing expense	​		69	​		55	​		130	​		114
General, and administrative	​	​	584	​	​	468	​	​	822	​	​	983
Total stock based compensation expense	​	$	660	​	$	535	​	$	967	​	$	1,124

Schedule of stock option activity under all equity compensation plans

​

​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	Weighted-	​	​	​
​	​	​	​	Weighted-		​	Average	​	Aggregate
​	​	Number of	​	Average		​	Remaining	​	Intrinsic
​	​	Shares	​	Exercise		​	Contractual	​	Value
​		(in thousands)		Price			Term (Years)		(in thousands)
Outstanding at December 31, 2022		793	​	$	2.67	​	5.03	​	$	8,908
Granted		—	​	$	—	​	​	​		​
Forfeited		(206)	​	$	6.30	​	​	​		​
Exercised	​	(25)	​	$	5.38	​	​	​	​	​
Outstanding at June 30, 2023		562	​	$	1.23	​	3.05	​	$	4,701
​	​	​	​	​	​	​	​	​	​	​
Exercisable at June 30, 2023		561	​	$	1.21	​	3.04	​	$	4,699

Schedule of restricted stock award activity under all equity compensation plans

​

​	​	​	​	​	​
​	​	Number of	​	​
​	​	Shares		Weighted Average
​		(in thousands)		Grant Date Fair Value
Granted but not vested at December 31, 2022		431	​	$	11.92
Granted		134	​	​	10.81
Forfeited		(4)	​	​	12.65
Vested		(88)	​	​	12.14
Granted but not vested at June 30, 2023		473	​	$	11.56

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
-Name Accounting Standards Codification
-Section 50
-Subparagraph (c)
-Paragraph 2
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ 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
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ 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
-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

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

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (e)
-SubTopic 10
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

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

X

- Definition

Tabular disclosure for outstanding and exercisable number of stock options.

+ References

No definition available.

+ Details

Name:	zyxi_ScheduleOfOutstandingAndExercisableNumberOfStockOptionsTableTextBlock
Namespace Prefix:	zyxi_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration