The amount of quarterly installment amount in related to the note receivable pursuant to the agreement.

No definition available.

Name:	mlss_NoteReceivableQuarterlyInstallmentAmount
Namespace Prefix:	mlss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The period of option to repurchase pursuant to the agreement.

+ References

No definition available.

+ Details

Name:	mlss_OptionToRepurchasePeriod
Namespace Prefix:	mlss_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Period to repurchase the variable entity shares at a specified purchase price under the agreement.

+ References

No definition available.

+ Details

Name:	mlss_OptionToRepurchaseVariableEntitySharesAtSpecifiedPurchasePricePeriod
Namespace Prefix:	mlss_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Purchase price under the agreement to repurchase the variable interest entity shares within the first two years.

+ References

No definition available.

+ Details

Name:	mlss_OptionToRepurchaseVariableInterestEntitySharesPurchasePrice
Namespace Prefix:	mlss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The price for shares of variable interest entity interest sold pursuant the agreement.

+ References

No definition available.

+ Details

Name:	mlss_PriceForSharesOfVariableInterestEntityInterestSold
Namespace Prefix:	mlss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of cash inflow from the sale of variable interest entity shares with agreement to repurchase.

+ References

No definition available.

+ Details

Name:	mlss_ProceedsFromSaleOfVariableInterestEntitySharesWithAgreementToRepurchase
Namespace Prefix:	mlss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount received that would be required to be returned to the purchaser.

+ References

No definition available.

+ Details

Name:	mlss_ReturnObligationAmount
Namespace Prefix:	mlss_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

This element represents disclosure of the amount of gain which has been deferred as the result of the sale of a business or operating assets to a highly leveraged entity which deferred gain has been reflected in the accompanying statement of financial position as reduction from the related asset.

+ References

No definition available.

+ Details

Name:	us-gaap_EquityMethodInvestmentDeferredGainOnSale
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66022249&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_EquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_NotesReceivableNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=mlss_MilestoneChinaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TransactionTypeAxis=mlss_SaleOfVariableInterestEntitysSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementScenarioAxis=mlss_UponExerciseOfDefaultAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Note D - Notes Receivable (Details Textual) - USD ($)	1 Months Ended	12 Months Ended
Note D - Notes Receivable (Details Textual) - USD ($)	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Mar. 02, 2018	May 31, 2017	Jun. 30, 2014
Proceeds from Sale of Variable Interest Entity Shares with Agreement to Repurchase		$ 250,000
Milestone China [Member]
Equity Method Investment, Ownership Percentage						40.00%
Equity Method Investment, Deferred Gain on Sale	$ 1,400,000
Equity Method Investments	$ 0	$ 0	$ 0			$ 1,000,000
Milestone China [Member] \| Sale of Variable Interest Entity's Shares [Member]
Equity Method Investment, Ownership Percentage	40.00%				40.00%
Option to Repurchase, Period	10 years
Price for Shares of Variable Interest Entity Interest Sold	$ 1,400,000
Proceeds from Sale of Variable Interest Entity Shares with Agreement to Repurchase	125,000
Financing Receivable, Net	1,275,000
Note Receivable, Quarterly Installment Amount	125,000
Option to Repurchase Variable Interest Entity Shares, Purchase Price	$ 1,400,000
Option to Repurchase Variable Entity Shares at Specified Purchase Price, Period	2 years
Equity Method Investment, Deferred Gain on Sale	$ 1,400,000
Milestone China [Member] \| Sale of Variable Interest Entity's Shares [Member] \| Upon Exercise of Default Agreement [Member] \| Subsequent Event [Member]
Return Obligation, Amount				$ 250,000