Note 5 - Commitments and Contingencies (Details Textual)	Sep. 26, 2018 USD ($)	Jul. 01, 2018
Capital Leased Assets, Number of Units		2
Subsequent Event [Member]
Purchase Commitment, Agreement to Upgrade Scoring System	$ 275,000

Represents the amount of an agreement to upgrade the automatic scoring system.

No definition available.

Name:	bwla_PurchaseCommitmentAgreementToUpgradeScoringSystem
Namespace Prefix:	bwla_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant