Supplementary Financial Statement Information - Schedule of Basic and Diluted Loss Per Share (Details) (Parentheticals)	6 Months Ended
Jun. 30, 2026
Numerator ($ in thousands):
Percentage of dividend on preferred shares	8.00%

The percentage rate used to calculate cumulative dividend on preferred shares.

No definition available.

Name:	brnx_PreferredStockCumulativeDividendRatePercentage
Namespace Prefix:	brnx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration