XML 46 R33.htm IDEA: XBRL DOCUMENT v2.4.1.9
Note 7 - Warrants (Details) (USD $)
12 Months Ended 0 Months Ended 9 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Jun. 25, 2014
Jun. 30, 2013
Mar. 26, 2014
Dec. 28, 2012
Jun. 08, 2010
Apr. 30, 2013
Dec. 31, 2012
Jul. 23, 2012
Note 7 - Warrants (Details) [Line Items]                    
Amortization of Debt Discount (Premium) (in Dollars) $ 8,000us-gaap_AmortizationOfDebtDiscountPremium $ 247,412us-gaap_AmortizationOfDebtDiscountPremium                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 350,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 60,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights       50,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights 50,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights      
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share) $ 0.30us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 $ 0.30us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1       $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1      
Derivative Liability, Fair Value, Amount Not Offset Against Collateral (in Dollars)   14,412us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral     244,800us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral 6,805us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral        
Selling, General and Administrative Expense (in Dollars) 2,793,119us-gaap_SellingGeneralAndAdministrativeExpense 2,004,777us-gaap_SellingGeneralAndAdministrativeExpense                
Summer 2014 Offering [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights     717,500us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_SummerTwoThousandFourteenOfferingMember
             
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)     $ 0.75us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_SummerTwoThousandFourteenOfferingMember
             
Class of Warrant or Right, Call Provision, Stock Price Threshold, Consecutive Business Days     20 days              
Class of Warrant or Right, Call Provision, Stock Price Threshold (in Dollars per share)     $ 1.50blgo_ClassOfWarrantOrRightCallProvisionStockPriceThreshold
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_SummerTwoThousandFourteenOfferingMember
             
Summer 2013 [Member] | Common Stock [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Stock Issued During Period Shares Warrants Exercised 280,000blgo_StockIssuedDuringPeriodSharesWarrantsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Summer2013Member
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
                 
Proceeds from Warrant Exercises (in Dollars) 84,000us-gaap_ProceedsFromWarrantExercises
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Summer2013Member
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
                 
Summer 2013 [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 3,190,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Summer2013Member
    3,450,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Summer2013Member
           
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)       $ 0.30us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Summer2013Member
           
Clyra Spring 2014 Private Securities Offering [Member] | Common Stock [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 4,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_ClyraSpring2014PrivateSecuritiesOfferingMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
                 
Clyra Spring 2014 Private Securities Offering [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights 980,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_ClyraSpring2014PrivateSecuritiesOfferingMember
                 
Winter 2013 [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   2,333,329us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Winter2013Member
               
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)   $ 0.55us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Winter2013Member
               
Clyra Winter 2012 Private Securities Offering [Member] | Modified Offering [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights               3,333us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_ClyraWinter2012PrivateSecuritiesOfferingMember
/ us-gaap_StatementScenarioAxis
= blgo_ModifiedOfferingMember
   
Clyra Winter 2012 Private Securities Offering [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights               799,999us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_ClyraWinter2012PrivateSecuritiesOfferingMember
2,858us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_ClyraWinter2012PrivateSecuritiesOfferingMember
 
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)               1,833us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_ClyraWinter2012PrivateSecuritiesOfferingMember
   
Winter 2012 Warrants [Member] | Common Stock [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Proceeds from Warrant Exercises (in Dollars) 197,144us-gaap_ProceedsFromWarrantExercises
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Winter2012WarrantsMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
                 
Conversion of Stock, Shares Issued 492,860us-gaap_ConversionOfStockSharesIssued1
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Winter2012WarrantsMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
                 
Winter 2012 Warrants [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights                 3,127,914us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Winter2012WarrantsMember
 
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)                 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Winter2012WarrantsMember
 
Interest Expense, Other (in Dollars)       233,000us-gaap_InterestExpenseOther
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_Winter2012WarrantsMember
           
Other Warrants [Member] | Selling, General and Administrative Expense [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Derivative Liability, Fair Value, Amount Not Offset Against Collateral (in Dollars)                 62,100us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
/ us-gaap_NatureOfExpenseAxis
= blgo_SellingGeneralAndAdministrativeExpenseMember
 
Other Warrants [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   60,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
      50,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
      250,000us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
Class of Warrant or Right, Exercise Price of Warrants or Rights (in Dollars per share)   $ 0.30us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
      $ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
      $ 0.40us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
Derivative Liability, Fair Value, Amount Not Offset Against Collateral (in Dollars)   14,412us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
      6,805us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
      67,500us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
Selling, General and Administrative Expense (in Dollars)   5,400us-gaap_SellingGeneralAndAdministrativeExpense
/ us-gaap_ClassOfWarrantOrRightAxis
= blgo_OtherWarrantsMember
               
Common Stock [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Amortization of Debt Discount (Premium) (in Dollars) $ 8,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
$ 247,412us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
               
Summer 2014 Offering [Member]                    
Note 7 - Warrants (Details) [Line Items]                    
Sale of Stock, Price Per Share (in Dollars per share) $ 0.40us-gaap_SaleOfStockPricePerShare
/ us-gaap_TransactionTypeAxis
= blgo_SummerTwoThousandFourteenOfferingMember
  $ 0.40us-gaap_SaleOfStockPricePerShare
/ us-gaap_TransactionTypeAxis
= blgo_SummerTwoThousandFourteenOfferingMember