Management Fee Expense, Annual, Maximum

No definition available.

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Period Type:	duration

- Definition

Percentage of annual management fee payable in cash

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Related Party Transaction, Accrued Interest In Event Of Default, Percentage

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Related Party Transaction, Advance Payable Period

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Related Party Transaction, Conversion Price Per Share

+ References

No definition available.

+ Details

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- Definition

Related Party Transaction, Finance Percentage

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Increase In Outstanding Balance Payable In Event Of Default, Percentage

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Maximum Aggregate Purchase Amount

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Related Party Transaction, Maximum Aggregate Purchase Amount Increase

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of monthly fixed payment for services with related party during the financial reporting period.

+ References

No definition available.

+ Details

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Namespace Prefix:	boxl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Related Party Transaction, Outstanding Commitment Converted

+ References

No definition available.

+ Details

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Namespace Prefix:	boxl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of commission on gross profit derived on total purchase order revenue.

+ References

No definition available.

+ Details

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Namespace Prefix:	boxl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Rate Ratio Per 0.80

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Shares Issued In Conversion

+ References

No definition available.

+ Details

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Namespace Prefix:	boxl_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Related Party Transaction, Shortfall Payment Period

+ References

No definition available.

+ Details

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Namespace Prefix:	boxl_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Related Party Transaction, Term

+ References

No definition available.

+ Details

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

- Definition

Related Party Transaction, Threshold Proceeds From Sale Of Converted Shares

+ References

No definition available.

+ Details

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Namespace Prefix:	boxl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Period over which the Management Agreement pays after employment termination, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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

- Definition

Face amount or stated value per share of common stock.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480100/505-10-S45-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of transactions with related party during the financial reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
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+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 850
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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RELATED PARTY TRANSACTIONS (Details) - USD ($)							3 Months Ended		6 Months Ended
RELATED PARTY TRANSACTIONS (Details) - USD ($)	Apr. 01, 2026	Nov. 03, 2025	May 27, 2025	Jan. 04, 2024	Nov. 01, 2022	Jan. 31, 2018	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Related Party Transaction [Line Items]
Common stock, par value (in dollars per share)							$ 0.0001		$ 0.0001		$ 0.0001
Sales, Marketing, Management and Related Consulting Services \| Mark Elliott
Related Party Transaction [Line Items]
Related party transaction, monthly fixed payment for services					$ 4,000
Related party transaction, percentage of commission on gross profit derived on total purchase order revenue					15.00%
Related party transaction amounts							$ 81,000	$ 3,000	$ 127,000	$ 39,000
Management Agreement
Related Party Transaction [Line Items]
Related party transaction amounts										$ 43,000
Management Agreement \| Related Party
Related Party Transaction [Line Items]
Term over which management agreement pays after employment termination (in months)				13 months		13 months
Management fee percentage						0.375%
Maximum annual management fee						$ 250,000
Inventory Finance Agreement
Related Party Transaction [Line Items]
Maximum aggregate purchase amount		$ 9,000,000.0
Advance payable period		90 days
Outstanding obligation balance converted	$ 556,200
Shares issued in conversion (in shares)	100,000
Conversion price (in dollars per share)	$ 5.562
Threshold aggregate proceeds from sale of conversion shares	$ 556,200
Shortfall payment period	5 days
Inventory Finance Agreement \| J.J. ASTOR
Related Party Transaction [Line Items]
Maximum aggregate purchase amount	$ 10,000,000.0	$ 9,000,000.0	$ 6,000,000
Related party transaction term			1 year
Advance payable period		90 days	90 days
Related party transaction rate			5.35%
Increase in outstanding balance payable in event of default, percentage			10.00%
Accrued interest percentage in event of default			19.00%
Finance percentage		80.00%
Maximum aggregate purchase amount increase		$ 3,000,000
Related party transaction rate ratio		1.0535
Inventory Finance Agreement \| J.J. ASTOR \| Related Party
Related Party Transaction [Line Items]
Common stock, par value (in dollars per share)		$ 0.0001