Down payment of an equipment purchase.

No definition available.

Name:	BWMG_DownPaymentOfEquipmentPurchase
Namespace Prefix:	BWMG_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

Name:	us-gaap_DebtInstrumentPeriodicPayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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

- Definition

Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

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+ Details

Name:	us-gaap_LoansPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The cash outflow for a borrowing supported by a written promise to pay an obligation.

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+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentAxis=BWMG_SBALoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PlanNameAxis=BWMG_PaycheckProtectionProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=BWMG_HobokenStreetAssociationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=BWMG_MarlinCapitalSolutionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=BWMG_MercedesBenzMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	dei_LegalEntityAxis=BWMG_NavitasCreditCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Convertible Debentures and Notes Payable (Details Narrative) - USD ($)					6 Months Ended
	May 19, 2021	Aug. 21, 2020	May 12, 2020	Sep. 30, 2019	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Oct. 15, 2016	Jul. 01, 2013
Short-term Debt [Line Items]
Repayments of notes payable					$ 25,000	$ 30,000
SBA Loan [Member] \| Paycheck Protection Program [Member]
Short-term Debt [Line Items]
Debt Instrument, Term			7 months
Debt Instrument, Periodic Payment			$ 8,983
Loan balance					0		$ 159,600
Unsecured loan			$ 159,600
Hoboken Street Association [Member]
Short-term Debt [Line Items]
Notes payable					0		10,000	$ 10,000
Marlin Capital Solutions [Member]
Short-term Debt [Line Items]
Debt Instrument, Face Amount				$ 96,725
Debt Instrument, Term				36 months
Debt Instrument, Periodic Payment				$ 3,144
Loan balance					44,013
Mercedes Benz [Member] \| Installment Agreement [Member]
Short-term Debt [Line Items]
Debt Instrument, Face Amount		$ 55,841
Debt Instrument, Term		60 months
Debt Instrument, Periodic Payment		$ 931
Loan balance					$ 47,156
Debt instrument, interest rate					0.00%
Debt Instrument, Maturity Date		Oct. 05, 2020
Navitas Credit Corp [Member] \| Installment Agreement [Member]
Short-term Debt [Line Items]
Debt Instrument, Face Amount	$ 79,309
Debt Instrument, Term	60 months
Debt Instrument, Periodic Payment	$ 1,611
Loan balance					$ 36,021
[custom:DownPaymentOfEquipmentPurchase]					37,098
Mr. Tom Gonzales [Member]
Short-term Debt [Line Items]
Notes payable					15,000		$ 40,000		$ 200,000
Repayments of notes payable					$ 25,000