Related Party Transaction, Percent Of Mergers And Acquisitions Success Fee.

No definition available.

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Namespace Prefix:	bosc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Related Party Transaction, Percent Of Success Fee.

+ References

No definition available.

+ Details

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Namespace Prefix:	bosc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The per share price that the individual must pay to acquire shares under the deferred compensation arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864

+ 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

No definition available.

+ Details

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

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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

- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

+ Details

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

- 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

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=bosc_RelatedPartyMember
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- Details

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Related Parties (Details Textual) $ / shares in Units, ₪ in Thousands		1 Months Ended	12 Months Ended					23 Months Ended
	Jul. 01, 2012 USD ($)	Dec. 20, 2011 USD ($) shares	Dec. 31, 2017 USD ($)	Dec. 31, 2017 ILS (₪)	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 shares	Dec. 31, 2014 shares	Dec. 31, 2010 USD ($)
Related Party Transaction [Line Items]
Percentage of success fee					6.00%
Percentage of success fee, M&A transactions					3.50%
Exercise price of options \| $ / shares					$ 3.8
Director Fees [Member]
Related Party Transaction [Line Items]
Shares issued for services							2,652
Cukierman & Co. [Member]
Related Party Transaction [Line Items]
Amount of monthly transaction \| $		$ 5,000			$ 10,000			$ 8,500
Options granted		22,360
Shares issued for services					0	4,065	17,747
Cukierman & Co. [Member] \| Minimum [Member]
Related Party Transaction [Line Items]
Percentage of success fee					4.00%
Cukierman & Co. [Member] \| Maximum [Member]
Related Party Transaction [Line Items]
Percentage of success fee					6.00%
Edouard Cukierman [Member]
Related Party Transaction [Line Items]
Amount of monthly transaction \| $	$ 6,400
Shares issued for services					0	0	17,079
THCAP [Member]
Related Party Transaction [Line Items]
Amount of monthly transaction \| $					$ 3,700
Shares issued for services					0	0	6,004
THCAP [Member] \| Director Fees [Member]
Related Party Transaction [Line Items]
Shares issued for services					0	0	2,405
iDnext [Member] \| Subsequent Event [Member]
Related Party Transaction [Line Items]
Amount of monthly transaction			$ 8,500	₪ 33