Sale Of Stock, Percentage Of Aggregate Number Of Shares Issued In Transaction

No definition available.

Name:	smsi_SaleOfStockPercentageOfAggregateNumberOfSharesIssuedInTransaction
Namespace Prefix:	smsi_
Data Type:	xbrli:pureItemType
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

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

+ Details

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

- Definition

The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

Name:	us-gaap_ProceedsFromIssuanceOfPrivatePlacement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

Name:	us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

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

- Details

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

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=smsi_SecuritiesPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_PrivatePlacementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix:
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Common Stock (Details) $ / shares in Units, $ in Millions			6 Months Ended
Common Stock (Details) $ / shares in Units, $ in Millions	May 14, 2024 $ / shares shares	May 10, 2024 $ / shares shares	Jun. 30, 2024 USD ($) $ / shares shares	Nov. 14, 2024 $ / shares
Class of Warrant or Right [Line Items]
Proceeds from issuance of warrants \| $			$ 3.4
Pre-Funded Warrants
Class of Warrant or Right [Line Items]
Aggregate number of warrants (in shares) \| shares			845,000
Exercise price (in dollars per share)			$ 0.001
Securities Purchase Agreement
Class of Warrant or Right [Line Items]
Number of shares issued (in shares) \| shares		1,065,000
Purchase price (in dollars per share)		$ 2.15
Securities Purchase Agreement \| Pre-Funded Warrants
Class of Warrant or Right [Line Items]
Purchase price (in dollars per share)		$ 2.149
Aggregate number of warrants (in shares) \| shares		845,000
Exercise price (in dollars per share)		$ 0.001
Private Placement \| Common Warrants
Class of Warrant or Right [Line Items]
Aggregate number of warrants (in shares) \| shares	1,910,000
Exercise price (in dollars per share)	$ 2.34
Over-Allotment Option \| Placement Agency Warrants
Class of Warrant or Right [Line Items]
Aggregate number of warrants (in shares) \| shares	133,700
Percentage of aggregate number of shares issued in transaction	0.070
Over-Allotment Option \| Placement Agency Warrants \| Forecast
Class of Warrant or Right [Line Items]
Exercise price (in dollars per share)				$ 2.86