Note 3 - Leasing Arrangements (Details Textual)	9 Months Ended
Mar. 29, 2020 USD ($)	Mar. 31, 2019 USD ($)
Number of Leases	1
Operating Lease, Right-of-Use Asset, Amortization	$ 124,758
Operating Lease, Liability, Total	1,861,856
Operating Lease, Liability, Current	$ 150,672

The amount of lease arrangements entered into by the entity.

No definition available.

Name:	bwla_NumberOfLeases
Namespace Prefix:	bwla_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of amortization expense attributable to right-of-use asset from operating lease.

+ References

No definition available.

+ Details

Name:	bwla_OperatingLeaseRightofuseAssetAmortization
Namespace Prefix:	bwla_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

+ Details

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

- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

+ Details

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