Debt - Related Party (Details) $ in Millions	1 Months Ended	6 Months Ended
Dec. 31, 2016 USD ($)	Jun. 30, 2017
Debt Instrument [Line Items]
Repayments of Notes Payable	$ 3.2
HD Vest [Member] \| Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Note repayment in year one, percentage		0.50
Note repayment in year two, percentage		0.40
Note repayment in year three, percentage		0.10
HD Vest [Member] \| President [Member] \| Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Debt instrument term		3 years
Interest rate		5.00%

Note Repayment In Year One, Percentage

No definition available.

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- Definition

Note Repayment In Year Three, Percentage

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
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- Definition

Note Repayment In Year Two, Percentage

+ References

No definition available.

+ Details

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Namespace Prefix:	bcor_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Period Type:	instant

- 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

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Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

The cash outflow for a borrowing supported by a written promise to pay an obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

+ Details

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Balance Type:	credit
Period Type:	duration

- Details

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- Details

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- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_PresidentMember
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