Aggregated fair market value of warrants and rights.

No definition available.

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

- Definition

Number of warrants granted.

+ References

No definition available.

+ Details

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

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

+ Details

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

- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
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

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_CounterpartyNameAxis=boxl_WhitehawkIncMember
Namespace Prefix:
Data Type:	na
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- Details

Name:	srt_TitleOfIndividualAxis=boxl_RyanLegudiMember
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STOCK COMPENSATION - WARRANTS (Details) - USD ($)		12 Months Ended
STOCK COMPENSATION - WARRANTS (Details) - USD ($)	Apr. 20, 2020	Dec. 31, 2021	Dec. 31, 2020
STOCK COMPENSATION
Warrants granted (in shares)		2,043,291	20,000
Warrants \| Whitehawk, Inc
STOCK COMPENSATION
Warrants granted (in shares)		2,043,291
Exercise price (in dollars per share)		$ 2.00
Vesting period (in years)		5 years
Aggregated fair market value		$ 3,100,000
Warrants \| Ryan Legudi
STOCK COMPENSATION
Warrants granted (in shares)	20,000
Exercise price (in dollars per share)	$ 0.70
Vesting period (in years)	4 years
Expiration term (in years)	5 years
Aggregated fair market value	$ 11,000