Balances and Transactions with Related Parties (Details 2) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Balances and Transactions With Related Parties [Abstract]
Short-term benefits	$ 3	$ 16	$ 11
Share-based payment to those employed by the Company or on its behalf	190	394	501
Share-based payment to those not employed by the Company or on its behalf	$ 147	$ 41	$ 2

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

No definition available.

Name:	BWAY_ShorttermBenefits
Namespace Prefix:	BWAY_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant