ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (Details)	12 Months Ended
Dec. 31, 2021
Maximum
Duration over which software maintenance, hardware maintenance, and subscription services are generally transferred	5 years
Minimum
Duration over which software maintenance, hardware maintenance, and subscription services are generally transferred	3 years

Duration over which software maintenance, hardware maintenance, and subscription services are generally transferred.

No definition available.

Name:	boxl_RevenuePerformanceObligationSatisfiedAtPointInTimeTransfersOfControl
Namespace Prefix:	boxl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration