Name:	blgo_ClassOfWarrantOrRightCallProvisionStockPriceThresholdConsecutiveBusinessDays
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Represents the discount on convertible notes payable.

No definition available.

Name:	blgo_DiscountOnConvertibleNotePayable
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The maximum discount percentage on the securities offering.

No definition available.

Name:	blgo_MaximumDiscountOnSecuritiesOffering
Namespace Prefix:	blgo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The maximum amount of over allotment value.

No definition available.

Name:	blgo_MaximumOverAllotmentProceeds
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The minimum amount of proceeds from sale of units before company has the right to register common stock with the SEC.

No definition available.

Name:	blgo_MinimumProceedsRequiredForStockRegistration
Namespace Prefix:	blgo_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

The amount of over-allotment percentage.

No definition available.

Name:	blgo_OverAllotmentPercentage
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Data Type:	num:percentItemType
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Period Type:	instant

The maximum value from the unit offering.

No definition available.

Name:	blgo_UnitOfferingMaximumValue
Namespace Prefix:	blgo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The amount of common stock available per warrant conversion.

No definition available.

Name:	blgo_WarrantConvertibleConversionRatio
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Data Type:	xbrli:pureItemType
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Period Type:	duration

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Data Type:	num:perShareItemType
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Period Type:	instant

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The price per share of the conversion feature embedded in the debt instrument.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

Name:	us-gaap_DebtInstrumentConvertibleConversionPrice1
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Data Type:	num:perShareItemType
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Period Type:	instant

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

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Data Type:	num:percentItemType
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Period Type:	instant

Amount of the cost of borrowed funds accounted for as interest expense for debt.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Name:	us-gaap_InterestExpenseDebt
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

No definition available.