Refers to amount of adoption adjustment to accumulated deficit under ASC 606 incurred during the period.

No definition available.

Name:	mson_AdoptionAdjustmentToAccumulatedDeficitUnderAsc606
Namespace Prefix:	mson_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Description of beginning year of minimum royalty payments.

+ References

No definition available.

+ Details

Name:	mson_BeginningYearOfMinimumRoyaltyPayments
Namespace Prefix:	mson_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Refers to amount of longterm contract assets as on balance sheet date.

+ References

No definition available.

+ Details

Name:	mson_LongtermContractAssets
Namespace Prefix:	mson_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Refers to amount of minimum royalty payments incurred during the period.

+ References

No definition available.

+ Details

Name:	mson_MinimumRoyaltyPayments
Namespace Prefix:	mson_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Refers to amount of transfer initial payments of functional intellectual property incurred during the period.

+ References

No definition available.

+ Details

Name:	mson_TransferInitialPaymentsOfFunctionalIntellectualProperty
Namespace Prefix:	mson_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of a reclassification adjustment made to prior period financial statement amounts.

+ References

No definition available.

+ Details

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

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

+ Details

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

- Details

Name:	us-gaap_NewAccountingPronouncementEarlyAdoptionAxis=us-gaap_AdjustmentsForNewAccountingPrincipleEarlyAdoptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=mson_LicenseAndExclusiveManufacturingAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=mson_HunanXingHangRuiKangBioTechnologiesCoLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Revenue Recognition (Details Narrative) - USD ($)			3 Months Ended		9 Months Ended
Revenue Recognition (Details Narrative) - USD ($)	Oct. 19, 2018	Jul. 02, 2018	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2019	Mar. 31, 2018	Jun. 30, 2018
Revenues			$ 9,556,590	$ 12,439,132	$ 29,094,208	$ 28,043,700
Adoption adjustment to accumulated deficit under ASC 606					960,000
Contract assets			$ 960,000		960,000		$ 0
Accounting Standards Codification 605 [Member]
Adoption adjustment to accumulated deficit under ASC 606					$ 960,000
License And Exclusive Manufacturing Agreement [Member]
Cumulative prior period adjustment		$ 960,000
License And Exclusive Manufacturing Agreement [Member] \| Hunan Xing Hang Rui Kang Bio-technologies Co Ltd [Member]
Transfer initial payments of functional intellectual property	$ 5,000,000
Minimum royalty payments	$ 2,000,000
Beginning year of minimum royalty payments	2019