Significant Risks and Uncertainties (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2012	Oct. 31, 2011
Significant Risks and Uncertainties
Cash and certificate of deposit balances at financial institutions in excess of the federally insured limits	$ 23,260	$ 21,000

Represents the credit risk associated with the amount of cash and deposits, as of the balance sheet date, that is not insured by the Federal Deposit Insurance Corporation.

No definition available.

Name:	brli_ConcentrationRiskCreditRiskUninsuredAmount
Namespace Prefix:	brli_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant