The weighted average grant-date fair value of warrants granted during the reporting period.

No definition available.

Name:	mlss_ClassOfWarrantOrRightIssuedDuringPeriodWeightedAverageGrantDateFairValue
Namespace Prefix:	mlss_
Data Type:	num:perShareItemType
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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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

- Definition

Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExercisePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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

- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

+ Details

Name:	us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_WarrantsAndRightsOutstandingMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
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=mlss_The2016WarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=mlss_The2019WarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputSharePriceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=mlss_WarrantLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedTermMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputPriceVolatilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExpectedDividendRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputExercisePriceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputRiskFreeInterestRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=mlss_MeasurementInputWeightedAverageOfSharesGrantedFairValueMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note I - Stockholders' Equity - Assumption Used to Value Liability Classified Warrants at Grant Date (Details)	1 Months Ended	11 Months Ended	12 Months Ended
	Dec. 31, 2019 $ / shares shares	Nov. 30, 2019 $ / shares shares	Dec. 31, 2018 shares	Dec. 17, 2019 $ / shares
Fair Value of Common Stock, employee stock options (in dollars per share)	$ 0.84			$ 0.42
Share-based Payment Arrangement, Option [Member]
Fair Value of Common Stock, employee stock options (in dollars per share)	$ 1.28
Volatility, employee stock options, minimum		91.80%
Volatility, employee stock options, maximum	102.00%	102.30%
Dividend yield, employee stock options	0.00%	0.00%
Risk-free interest rate, employee stock options, minimum	1.53%	1.68%
Risk-free interest rate, employee stock options, maximum	1.63%	1.53%
Weighted average fair value of options granted, employee stock options (in dollars per share)	$ 0.64	$ 0.72
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross \| shares	592,358	592,358
Share-based Payment Arrangement, Option [Member] \| Minimum [Member]
Fair Value of Common Stock, employee stock options (in dollars per share)		$ 1.07
Expected Term, employee stock options (Year)	1 year	1 year 36 days
Volatility, employee stock options, minimum	92.00%
Exercise Price, employee stock options (in dollars per share)	$ 1.04	$ 1.04
Share-based Payment Arrangement, Option [Member] \| Maximum [Member]
Fair Value of Common Stock, employee stock options (in dollars per share)		$ 1.60
Expected Term, employee stock options (Year)	2 years 36 days	2 years 80 days
Exercise Price, employee stock options (in dollars per share)	$ 2.09	$ 2.09
The 2016 Warrants [Member]
Number of shares underlying warrants granted (in shares) \| shares	1,592,775	1,592,775
The 2019 Warrants [Member]
Weighted average fair value of securities granted, warrants (in dollars per share)		$ 0.22
Number of shares underlying warrants granted (in shares) \| shares	1,084,171	1,749,171
Measurement Input, Share Price [Member] \| The 2016 Warrants [Member] \| Minimum [Member]
Warrants, measurement input		0.36
Measurement Input, Share Price [Member] \| The 2016 Warrants [Member] \| Maximum [Member]
Warrants, measurement input		0.83
Measurement Input, Share Price [Member] \| The 2019 Warrants [Member]
Warrants, measurement input		0.33
Measurement Input, Share Price [Member] \| Warrant Liabilities [Member] \| The 2016 Warrants [Member]
Warrants, measurement input	1.28
Measurement Input, Share Price [Member] \| Warrant Liabilities [Member] \| The 2019 Warrants [Member]
Warrants, measurement input	1.28
Measurement Input, Expected Term [Member] \| The 2016 Warrants [Member] \| Minimum [Member]
Warrants, measurement input		0.2
Measurement Input, Expected Term [Member] \| The 2016 Warrants [Member] \| Maximum [Member]
Warrants, measurement input		0.5
Measurement Input, Expected Term [Member] \| The 2019 Warrants [Member]
Warrants, measurement input		4.9
Measurement Input, Expected Term [Member] \| Warrant Liabilities [Member] \| The 2016 Warrants [Member]
Warrants, measurement input	0.1
Measurement Input, Expected Term [Member] \| Warrant Liabilities [Member] \| The 2019 Warrants [Member]
Warrants, measurement input	4.1
Measurement Input, Price Volatility [Member] \| The 2016 Warrants [Member] \| Minimum [Member]
Warrants, measurement input		0.86
Measurement Input, Price Volatility [Member] \| The 2016 Warrants [Member] \| Maximum [Member]
Warrants, measurement input		1
Measurement Input, Price Volatility [Member] \| The 2019 Warrants [Member]
Warrants, measurement input		0.83
Measurement Input, Price Volatility [Member] \| Warrant Liabilities [Member] \| The 2016 Warrants [Member]
Warrants, measurement input	0.38
Measurement Input, Price Volatility [Member] \| Warrant Liabilities [Member] \| The 2019 Warrants [Member]
Warrants, measurement input	0.88
Measurement Input, Expected Dividend Rate [Member] \| The 2016 Warrants [Member]
Warrants, measurement input		0
Measurement Input, Expected Dividend Rate [Member] \| The 2019 Warrants [Member]
Warrants, measurement input		0
Measurement Input, Expected Dividend Rate [Member] \| Warrant Liabilities [Member] \| The 2016 Warrants [Member]
Warrants, measurement input	0
Measurement Input, Expected Dividend Rate [Member] \| Warrant Liabilities [Member] \| The 2019 Warrants [Member]
Warrants, measurement input	0
Measurement Input, Exercise Price [Member] \| The 2016 Warrants [Member]
Warrants, measurement input		2.55
Measurement Input, Exercise Price [Member] \| The 2019 Warrants [Member]
Warrants, measurement input		0.5
Measurement Input, Exercise Price [Member] \| Warrant Liabilities [Member] \| The 2016 Warrants [Member]
Warrants, measurement input	2.55
Measurement Input, Exercise Price [Member] \| Warrant Liabilities [Member] \| The 2019 Warrants [Member]
Warrants, measurement input	0.5
Measurement Input, Risk Free Interest Rate [Member] \| The 2016 Warrants [Member] \| Minimum [Member]
Warrants, measurement input		0.0188
Measurement Input, Risk Free Interest Rate [Member] \| The 2016 Warrants [Member] \| Maximum [Member]
Warrants, measurement input		0.0209
Measurement Input, Risk Free Interest Rate [Member] \| The 2019 Warrants [Member]
Warrants, measurement input		0.023
Measurement Input, Risk Free Interest Rate [Member] \| Warrant Liabilities [Member] \| The 2016 Warrants [Member]
Warrants, measurement input	0.0156
Measurement Input, Risk Free Interest Rate [Member] \| Warrant Liabilities [Member] \| The 2019 Warrants [Member]
Warrants, measurement input	0.0171
Measurement Input, Weighted Average of Shares Granted, Fair Value [Member] \| Warrant Liabilities [Member] \| The 2016 Warrants [Member]
Weighted average fair value of securities granted, warrants (in dollars per share)
Measurement Input, Weighted Average of Shares Granted, Fair Value [Member] \| Warrant Liabilities [Member] \| The 2019 Warrants [Member]
Weighted average fair value of securities granted, warrants (in dollars per share)	$ 1.01