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Shareholders' Equity (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended | 1 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2012 | Dec. 31, 2013 | Feb. 03, 2014 | Jan. 31, 2014 | Jun. 18, 2013 | Nov. 27, 2014 | Apr. 30, 2013
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of ordinary shares | $ 467 us-gaap_StockIssuedDuringPeriodValueNewIssues |  |  |  |  |  |  |
Trading description | For each Ordinary share purchased under the SEDA, YA will pay 95% of the lowest daily VWAP (as defined below) of the Ordinary shares during the five consecutive trading days following the date of an advance notice from the Company (provided such VWAP is greater than or equal to 90% of the last closing price of the Ordinary shares at the time of delivery of the advance notice). Once presented with an advance notice, YA Global is required to purchase the number of shares specified in the advance notice. Each such notice may be for an amount of Ordinary shares not to exceed the greater of (1) $25 and (2) the average of the Daily Value Traded for the five trading days prior to the advance notice, where Daily Value Traded is the product obtained by multiplying the daily trading volume for such day by the VWAP for such day. Notwithstanding the forgoing, the notice shall not exceed $150 for the 2013 SEDA and $500 for the 2014 SEDA. |  |  |  |  |  |  |
Stock Option [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Option term |  | 10 years |  |  |  |  |  |
Ordinary shares reserved for purchase |  | 275,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |  |
Options still available for future grants | 80,005 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |  |  |
Vesting period | 4 years |  |  |  |  |  |  |
Stock option plan expiration date |  | May 31, 2023 |  |  |  |  |  |
Weighted-average grant-date fair value of options granted | $ 5.32 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  | $ 4.18 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |
Weighted-average grant-date fair value of unvested options | $ 4.26 us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |  |  |
Total intrinsic value of options exercised |  |  | 91 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |
Unrecognized compensation cost related to non-vested share-based compensation arrangements | 182 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  | 231 us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |
Proceeds from exercise of options |  |  | 86 us-gaap_ProceedsFromStockOptionsExercised / us-gaap_AwardTypeAxis = us-gaap_EmployeeStockOptionMember |  |  |  |  |
Minimum [Member] | Stock Option [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Option term | 2 years |  |  |  |  |  |  |
Maximum [Member] | Stock Option [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Option term | 10 years |  |  |  |  |  |  |
YA Global Master SPV Ltd. [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of ordinary shares, shares | 63,948 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember |  | 43,834 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember |  |  |  |  |
Issuance of ordinary shares | 600 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember |  | 600 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember |  |  |  |  |
Ordinary shares issued for commitment fee | 13,711 bosc_CommonStockSharesIssuedForCommitmentFee / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember |  |  |  |  |  |  |
YA Global Master SPV Ltd. [Member] | Note Purchase Agreement [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of ordinary shares, shares |  |  |  | 2,500 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_FinancialInstrumentAxis = bosc_PurchaseAgreementMember |  |  |  |
Bridge Loan |  |  |  | 500 us-gaap_BridgeLoan / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_FinancialInstrumentAxis = bosc_PurchaseAgreementMember |  |  |  |
Bridge loan expiration period |  |  |  | 1 year |  |  |  |
Standby Equity Distribution Agreement [Member] | YA Global Master SPV Ltd. [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of ordinary shares, shares | 290,254 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember |  |  |  |  |  |  |
Issuance of ordinary shares | 958 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember |  |  | 2,000 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember |  | 600 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember |  |
Shares issued for services |  |  | 7,500 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember |  |  |  |  |
Payments of stock issuance costs | 42 us-gaap_PaymentsOfStockIssuanceCosts / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember |  |  |  |  |  |  |
Number shares covered by warrants |  |  |  |  | 161,000 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember |  |  | 140,887 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember
Warrant extension term |  |  |  |  | 2 years |  |  |
Standby Equity Distribution Agreement [Member] | YA Global Master SPV Ltd. [Member] | Minimum [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  | 7.43 invest_InvestmentWarrantsExercisePrice / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember |  |  |
Standby Equity Distribution Agreement [Member] | YA Global Master SPV Ltd. [Member] | Maximum [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  | 11 invest_InvestmentWarrantsExercisePrice / us-gaap_CounterpartyNameAxis = bosc_YaGlobalMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember |  |  |
Cukierman & Co [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares issued for services | 17,747 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |  | 20,932 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_AffiliatedEntityMember |  |  |  |  |
Edouard Cukierman [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares issued for services | 17,079 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember |  | 7,787 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_BoardOfDirectorsChairmanMember |  |  |  |  |
THCAP [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares issued for services | 6,004 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bosc_ThcapMember |  | 9,868 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bosc_ThcapMember |  |  |  |  |
Number shares covered by warrants |  | 3,600 us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bosc_ThcapMember |  |  |  |  |  |
Term of warrants |  | 3 years |  |  |  |  |  |
Exercise price of warrants |  | 2.39 invest_InvestmentWarrantsExercisePrice / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bosc_ThcapMember |  |  |  |  |  |
THCAP [Member] | Director Fees [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares issued for services | 2,405 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionAxis = bosc_DirectorFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bosc_ThcapMember |  | 1,219 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionAxis = bosc_DirectorFeesMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bosc_ThcapMember |  |  |  |  |
Director [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Shares issued for services | 2,652 us-gaap_StockIssuedDuringPeriodSharesIssuedForServices / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = us-gaap_DirectorMember |  |  |  |  |  |  |
Novel Infrastructure, Ltd. [Member] | Share Purchase Agreement [Member] |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |
Issuance of ordinary shares, shares |  |  |  |  |  |  | 128,147 us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_FinancialInstrumentAxis = bosc_PurchaseAgreementOneMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bosc_NovelInfrastructureMember |
Issuance of ordinary shares |  |  |  |  |  |  | 500 us-gaap_StockIssuedDuringPeriodValueNewIssues / us-gaap_FinancialInstrumentAxis = bosc_PurchaseAgreementOneMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bosc_NovelInfrastructureMember |
Payments of stock issuance costs |  |  |  |  |  |  | $ 33 us-gaap_PaymentsOfStockIssuanceCosts / us-gaap_FinancialInstrumentAxis = bosc_PurchaseAgreementOneMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = bosc_NovelInfrastructureMember |

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