Name:	bwla_EquitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLonger
Namespace Prefix:	bwla_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of accumulated unrealized loss on investment in equity security in continuous unrealized loss position for 12 months or longer, without allowance for credit loss.

No definition available.

Name:	bwla_EquitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
Namespace Prefix:	bwla_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of investment in equity security in continuous unrealized loss position for less than 12 months, without allowance for credit loss.

No definition available.

Name:	bwla_EquitySecuritiesContinuousUnrealizedLossPositionLessThan12Months
Namespace Prefix:	bwla_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of accumulated unrealized loss on investment in equity security in continuous unrealized loss position for less than 12 months, without allowance for credit loss.

No definition available.

Name:	bwla_EquitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
Namespace Prefix:	bwla_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of accumulated unrealized loss on equity securities.

No definition available.

Name:	bwla_EquitySecuritiesFvniAccumulatedUnrealizedLoss
Namespace Prefix:	bwla_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740