Number of warrants exercised.

No definition available.

Name:	smtk_ClassOfWarrantOrRightExercised
Namespace Prefix:	smtk_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average exercise price of warrants exercised.

+ References

No definition available.

+ Details

Name:	smtk_ClassOfWarrantOrRightExercisedWeightedAverageExercisePrice
Namespace Prefix:	smtk_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of warrants or rights issued.

+ References

No definition available.

+ Details

Name:	smtk_ClassOfWarrantOrRightIssued
Namespace Prefix:	smtk_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average exercise price of warrants or rights issued.

+ References

No definition available.

+ Details

Name:	smtk_ClassOfWarrantOrRightIssuedWeightedAverageExercisePrice
Namespace Prefix:	smtk_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Weighted average exercise price of warrants outstanding.

+ References

No definition available.

+ Details

Name:	smtk_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
Namespace Prefix:	smtk_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted Average Remaining Contractual Term (years)

+ References

No definition available.

+ Details

Name:	smtk_WarrantsAndRightsAdditionalDisclosureAbstract
Namespace Prefix:	smtk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Warrants, Number of Shares Rollforward [Abstract]

+ References

No definition available.

+ Details

Name:	smtk_WarrantsNumberOfSharesRollforwardAbstract
Namespace Prefix:	smtk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Warrants, Weighted Average Exercise Price Rollforward [Abstract]

+ References

No definition available.

+ Details

Name:	smtk_WarrantsWeightedAverageExercisePriceRollforwardAbstract
Namespace Prefix:	smtk_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=smtk_CommonStockWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=smtk_ClassBWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=smtk_ClassCWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=smtk_PreFundedWarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

STOCKHOLDERS' EQUITY - Common Stock Warrants (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Sep. 30, 2025	Dec. 31, 2024
Common stock warrants
Number of shares
Warrants outstanding at beginning of the year			5,171,430
Exercised			(160)
Warrants outstanding at end of the year	5,171,270		5,171,270
Weighted-Average Exercise Price
Warrants outstanding at beginning of the year			$ 4.94
Exercised			0.35
Warrants outstanding at end of the year	$ 4.94		$ 4.94
Weighted Average Remaining Contractual Term (years)
Warrants outstanding at beginning of the year			2 years 3 months 3 days
Warrants outstanding at end of the year	1 year 6 months 7 days		1 year 6 months 7 days
Common stock warrants \| Minimum
Number of shares
Exercise price per share	$ 0.35		$ 0.35	$ 0.35
Common stock warrants \| Maximum
Number of shares
Exercise price per share	$ 70		$ 70	$ 70
Class B Warrants
Number of shares
Exercise price per share		$ 0.35
Class C Warrants
Number of shares
Issued		1,282,412
Exercise price per share		$ 0.0001
Pre funded warrants
Number of shares
Warrants outstanding at beginning of the year			2,318,502
Issued			1,282,412
Exercised	(1,133,977)		(1,133,977)
Warrants outstanding at end of the year	2,466,937		2,466,937
Weighted-Average Exercise Price
Warrants outstanding at beginning of the year			$ 0.0064
Issued			0.0001
Exercised	$ 0.0001		0.0001
Warrants outstanding at end of the year	$ 0.006		$ 0.006