Note 9 - Significant Risk Concentrations - Rebate Credits (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Cost of Sales [Member]
Reductions	$ 450	$ 94	$ 581	$ 229
Selling and Marketing Expense [Member]
Reductions	$ 74	$ 69	$ 363	$ 174

The amount of expense offset under the rebates program.

No definition available.

Name:	bsqr_ExpenseOffsetUnderRebatesProgram
Namespace Prefix:	bsqr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration