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Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Prepaid expenses and other current assets	$ 1,200,868	$ 447,036
Prepayments to Vendors [Member]
Prepaid expenses and other current assets	1,069,381	351,408
Employee Receivables [Member]
Prepaid expenses and other current assets	2,300	3,571
Prepaid State and Local Taxes [Member]
Prepaid expenses and other current assets	3,455	16,385
Prepaid and Refundable Income Taxes [Member]
Prepaid expenses and other current assets	35,279	30,879
Prepaid License and Other [Member]
Prepaid expenses and other current assets	$ 90,453	$ 44,793

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- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6787-107765

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 340
-SubTopic 10
-Section 05
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68074540&loc=d3e5879-108316

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765

+ Details

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

X

- Details

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

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Balance Type:
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X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=BOXL_PrepaidStateAndLocalTaxesMember
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X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=BOXL_PrepaidAndRefundableIncomeTaxesMember
Namespace Prefix:
Data Type:	na
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X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=BOXL_PrepaidLicenseAndOtherMember
Namespace Prefix:
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Balance Type:
Period Type: