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Note 6 - Stockholders' Equity - Warrants (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Outstanding (in shares) | 314,572 |
Outstanding (in dollars per share) | $ 0.5 |
Outstanding (Year) |  | 1 month 6 days
Outstanding | $ 0 | $ 59,737
Issued, number of shares (in shares) | 0 |
Issued, weighted average exercise price (in dollars per share) | $ 0 |
Exercised, number of shares (in shares) | (103,500) |
Exercised, weighted average exercise price (in dollars per share) | $ 0.5 |
Expired or cancelled, number of shares (in shares) | (211,072) |
Expired or cancelled, weighted average exercise price (in dollars per share) | $ 0.5 |
Outstanding (in shares) | 0 | 314,572
Outstanding (in dollars per share) | $ 0 | $ 0.5

X
- Definition The number of warrants or rights exercised during period. + References No definition available. + Details
Name: | mlss_ClassOfWarrantOrRightExercisedDuringPeriod
Namespace Prefix: | mlss_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share of warrants or rights exercised during period. + References No definition available. + Details
Name: | mlss_ClassOfWarrantOrRightExercisedDuringPeriodExercisePrice
Namespace Prefix: | mlss_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of warrants or rights expired or cancelled during period. + References No definition available. + Details
Name: | mlss_ClassOfWarrantOrRightExpiredOrCancelledDuringPeriod
Namespace Prefix: | mlss_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share of warrants or rights expired or cancelled during period. + References No definition available. + Details
Name: | mlss_ClassOfWarrantOrRightExpiredOrCancelledDuringPeriodExercisePrice
Namespace Prefix: | mlss_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of warrants or rights issued during period. + References No definition available. + Details
Name: | mlss_ClassOfWarrantOrRightIssuedDuringPeriod
Namespace Prefix: | mlss_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share of warrants or rights issued during period. + References No definition available. + Details
Name: | mlss_ClassOfWarrantOrRightIssuedDuringPeriodExercisePrice
Namespace Prefix: | mlss_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Intrinsic value of outstanding warrants. + References No definition available. + Details
Name: | mlss_ClassOfWarrantOrRightOutstandingAggregateIntrinsicValue
Namespace Prefix: | mlss_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the weighted average remaining term of warrants and rights outstanding, + References No definition available. + Details
Name: | mlss_WarrantsAndRightsOutstandingWeightedAverageRemainingTerm
Namespace Prefix: | mlss_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- 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