XML 69 R58.htm IDEA: XBRL DOCUMENT
v3.25.3

Note 15 - Subsequent Events (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |  | 9 Months Ended |
--- | --- | --- | ---
Nov. 05, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) |  | 1 |  | 1
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) |  | $ 1.41 |  | $ 1.74
Proceeds from Issuance or Sale of Equity |  | $ 966 | $ 3,351 |
Subsequent Event [Member] |  |  |  |
Equity Offering, Shares Authorized (in shares) | 4,000,000 |  |  |
Proceeds from Issuance or Sale of Equity | $ 2,700 |  |  |
Subsequent Event [Member] | Chief Executive Officer [Member] |  |  |  |
Proceeds from Issuance or Sale of Equity | $ 1,500 |  |  |
Subsequent Event [Member] | November 2025 Warrants [Member] |  |  |  |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | 1 |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 0.6708 |  |  |

X
- Definition Represents the number shares authorized in an equity offering. + References No definition available. + Details
Name: | smsi_EquityOfferingSharesAuthorized
Namespace Prefix: | smsi_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 3: 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

X
- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. + 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 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3 + Details
Name: | us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_TitleOfIndividualAxis=srt_ChiefExecutiveOfficerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=smsi_November2025WarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |