XML 39 R25.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2

STOCK BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2024

STOCK-BASED COMPENSATION

Schedule of the company's stock option activity

​

​	​	​	​	​	​	​	​	​	​	​
​		​		​	​	​	​	​		Weighted Average
​	​	​	​	​	​	​	​	​	​	Remaining
​	​	​	​	Weighted Average		​	​	​	​	Contractual
​		Number of Shares		Exercise Price			Total Intrinsic Value			Life (in years)
Outstanding as of January 1, 2024		737,895	​	$	25.42	​	$	1,317,000	​	7.6
Exercised	​	(19,497)	​	​	2.52	​	​	—	​	—
Canceled/Expired		(79,196)	​	​	52.95	​	​	—	​	—
Outstanding as of March 31, 2024		639,202	​	$	22.71	​	$	720,000	​	7.5
Options vested and exercisable		329,916	​	$	41.17	​	$	113,000	​	6.2

Schedule of stock-based compensation expenses

​

​	​	​	​	​	​	​
​		For the Three Months Ended
​	​	March 31,
​		2024			2023
Stock Compensation expenses:		​			​
Research and development	​	$	6,000	​	$	151,000
General and administrative	​		73,000	​		221,000
Stock compensation in continuing operations	​	​	79,000	​	​	372,000
Stock compensation in discontinued operations	​	​	—	​	​	288,000
Total stock compensation expenses	​	$	79,000	​	$	660,000

X

- Definition

Tabular disclosure of stock based compensation expenses recorded.

+ References

No definition available.

+ Details

Name:	mrkr_StockBasedCompensationExpensesTableTextBlock
Namespace Prefix:	mrkr_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

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 activity for award under share-based payment arrangement. Includes, but is not limited to, outstanding award at beginning and end of year, granted, exercised, forfeited, 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)(2)
-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_ScheduleOfShareBasedCompensationActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration