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Significant Accounting Policies (Policies)
12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Consolidation, Policy [Policy Text Block]
Principles of Consolidation
 
The consolidated financial statements include the accounts of the Company, its wholly owned subsidiaries, BLEST, and Clyra Medical. Management believes Clyra Medical’s financial statements are appropriately consolidated with that of the Company after reviewing the guidance of ASC Topic 
810
,
 “Consolidation”, and concluding that BioLargo controls Clyra Medical. While BioLargo does
not
have voting interest control through a majority stock ownership of Clyra Medical (it owns
36%
of the outstanding voting stock), it does exercise control under the “Variable Interest Model.” There is substantial board overlap, BioLargo is the primary beneficiary since it has the power to direct Clyra Medical’s activities that most significantly impact Clyra Medical’s performance, and it has the obligation to absorb losses or receive benefits (through royalties and licensing) that could be potentially significant to Clyra Medical. Biolargo has consolidated Clyra Medical’s operations for all periods presented. (See Note
9.
)
 
All intercompany accounts and transactions have been eliminated.
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Foreign Currency
 
The Company has designated the functional currency of Biolargo Water, Inc., our Canadian subsidiary, to be the Canadian dollar. Therefore, translation gains and losses resulting from differences in exchange rates are recorded in accumulated other comprehensive income.
Cash and Cash Equivalents, Policy [Policy Text Block]
Cash and Cash Equivalents
 
The Company considers all highly liquid investments with maturities of
three
months or less when acquired to be cash equivalents. Substantially all cash equivalents are held in short-term money market accounts at
one
of the largest financial institutions in the United States. From time to time, our cash account balances are greater than the Federal Deposit Insurance Corporation insurance limit of
$250,000
per owner per bank, and during such times, we are exposed to credit loss for amounts in excess of insured limits in the event of non-performance by the financial institution. We do
not
anticipate non-performance by our financial institution.
 
As of
December 31, 2018
and
2019,
our cash balances were made up of the following (in thousands):
 
   
2018
   
2019
 
Biolargo, Inc. and subsidiaries
  $
193
    $
652
 
Clyra Medical Technologies, Inc.
   
462
     
3
 
Total
  $
655
    $
655
 
Receivable [Policy Text Block]
Accounts Receivable
 
Trade accounts receivable are recorded net of allowances for doubtful accounts. Estimates for allowances for doubtful accounts are determined based on payment history and individual customer circumstances. The allowance for doubtful accounts as of 
December 31, 2018 
was
nil
and
2019
was 
$24,000.
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Credit Concentration
 
We have a limited number of customers that account for significant portions of our revenue. During the year ended
December 31, 2018,
we had
one
customer and during the year ended
December 31, 2019,
there were
no
customers that accounted for more than
10%
of consolidated revenues in the respective periods, as follows:
 
   
2018
   
2019
 
Customer A
   
33
%    
<10
%
 
We had
two
customers that each accounted for more than
10%
of consolidated accounts receivable at
December 
31,
2018
and
three
customers at
December 31, 2019
as follows:
 
   
2018
   
2019
 
Customer B
   
12
%    
<10
%
Customer C
   
31
%    
<10
%
Customer D
   
<10
%    
20
%
Customer E
   
<10
%    
14
%
Customer F
   
<10
%    
13
%
Inventory, Policy [Policy Text Block]
Inventory
 
Inventories are stated at the lower of cost or net realizable value using the average cost method. The allowance for obsolete inventory as of 
December 31, 2018
and
2019
was
$3,000
.
 As of
December 31, 2018
and
2019,
inventories consisted of (in thousands):
 
   
2018
   
2019
 
Raw material
  $
14
    $
11
 
Finished goods
   
12
     
5
 
Total
  $
26
    $
16
 
Other Assets, Policy [Policy Text Block]
Other Assets
 
Other Assets consisted of security deposits of
$35,000
related to our business offices.
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Impairment
 
Long-lived and definite lived intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset
may
not
be recoverable. If the sum of the expected future undiscounted cash flows from the use of the asset and its eventual disposition is less than the carrying amount of the asset, then an impairment loss is recognized. The impairment loss is measured based on the fair value of the asset. Any resulting impairment is recorded as a reduction in the carrying value of the related asset in excess of fair value and a charge to operating results. For the years ended
December 31, 2018
and
2019,
management determined that there was
no
impairment of its long-lived assets, including its In-process Research and Development (see Note
9
).
Earnings Per Share, Policy [Policy Text Block]
Earnings (Loss) Per Share
 
We report basic and diluted earnings (loss) per share (“EPS”) for common and common share equivalents. Basic EPS is computed by dividing reported earnings by the weighted average shares outstanding. Diluted EPS is computed by adding to the weighted average shares the dilutive effect if stock options and warrants were exercised into common stock. For the years ended
December 31, 2018
and
2019,
the denominator in the diluted EPS computation is the same as the denominator for basic EPS due to the anti-dilutive effect of the warrants and stock options on the Company’s net loss.
Use of Estimates, Policy [Policy Text Block]
Use of Estimates
 
The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and revenues and expenses during the period reported. Actual results could differ from those estimates. Estimates are used when accounting for stock-based transactions, debt transactions, derivative liabilities, allowance for bad debt, asset depreciation and amortization, among others.
 
 
The methods, estimates and judgments we use in applying these most critical accounting policies have a significant impact on the results of our financial statements.
Share-based Payment Arrangement [Policy Text Block]
Share-Based Compensation Expense
 
We recognize compensation expense for stock option awards on a straight-line basis over the applicable service period of the award, which is the vesting period. Fair value is determined on the grant date. Share-based compensation expense is based on the grant date fair value estimated using the Black-Scholes Option Pricing Model.
 
For stock and stock options issued to consultants and other non-employees for services, the Company measures and records an expense as of the earlier of the date at which either: a commitment for performance by the non-employee has been reached or the non-employee’s performance is complete. The equity instruments are measured at the current fair value, and for stock options, the instruments are measured at fair value using the Black Scholes option model.
 
For equity instruments issued and outstanding where performance is
not
complete, but the instrument has been recorded, those instruments are measured again at their then current fair market values at each of the reporting dates (they are “marked-to market”) until the performance and the contract are complete.
 
The following methodology and assumptions were used to calculate share-based compensation for the years ended
December 31, 2018
and
2019:
 
   
2018
   
2019
 
   
Non Plan
   
2007 Plan
   
Non Plan
   
20
18
Plan
 
Risk free interest rate
 
 2.43
2.91%
 
 
 2.89
2.91%
 
 
 1.68
2.65%
 
 
 1.68
2.65%
 
Expected volatility
 
 538
563%
 
 
 489
548%
 
 
 133
152%
 
 
 133
152%
 
Expected dividend yield
 
 
 
   
 
 
   
 
 
   
 
 
 
Forfeiture rate
 
 
 
   
 
 
   
 
 
   
 
 
 
Life in years
 
 
7
 
   
 
7
 
   
 
10
 
   
 
10
 
 
 
Expected price volatility is the measure by which our stock price is expected to fluctuate during the expected term of an option. Expected volatility is derived from the historical daily change in the market price of our common stock, as we believe that historical volatility is the best indicator of future volatility.
 
The risk-free interest rate used in the Black-Scholes calculation is based on the prevailing U.S. Treasury yield as determined by the U.S. Federal Reserve. We have never paid any cash dividends on our common stock and do
not
anticipate paying cash dividends on our common stock in the foreseeable future.
 
Historically, we have
not
had significant forfeitures of unvested stock options granted to employees and Directors. A significant number of our stock option grants are fully vested at issuance or have short vesting provisions. Therefore, we have estimated the forfeiture rate of our outstanding stock options as zero.
Warrant Policy [Policy Text Block]
Warrants
 
Warrants issued with our convertible and non-convertible debt instruments are accounted for under the fair value and relative fair value method.
 
The warrant is
first
analyzed per its terms as to whether it has derivative features or
not.
If the warrant is determined to be a derivative and
not
qualify for equity treatment, then it is measured at fair value using the Black Scholes option model, and recorded as a liability on the balance sheet. The warrant is re-measured at its then current fair value at each subsequent reporting date (it is “marked-to-market”).
 
If the warrant is determined to
not
have derivative features, it is recorded into equity at its fair value using the Black Scholes option model, however, limited to a relative fair value based upon the percentage of its fair value to the total fair value including the fair value of the convertible note.
 
Convertible debt instruments are recorded at fair value, limited to a relative fair value based upon the percentage of its fair value to the total fair value including the fair value of the warrant. Further, the convertible debt instrument is examined for any intrinsic beneficial conversion feature (“BCF”) of which the conversion price is less than the closing common stock price on date of issuance. If the relative fair value method is used to value the convertible debt instrument and there is an intrinsic BCF, a further analysis is undertaken of the BCF using an effective conversion price which assumes the conversion price is the relative fair value divided by the number of shares the convertible debt is converted into by its terms. The BCF value is accounted for as equity.
 
The warrant and BCF relative fair values are also recorded as a discount to the convertible promissory notes. As present, these equity features of the convertible promissory notes have recorded a discount to the convertible notes that is substantially equal to the proceeds received.
Non Cash Transactions [Policy Text Block]
Non-Cash Transactions
 
We have established a policy relative to the methodology to determine the value assigned to each intangible we acquire, and/or services or products received for non-cash consideration of our common stock. The value is based on the market price of our common stock issued as consideration, at the date of the agreement of each transaction or when the service is rendered or product is received.
Revenue from Contract with Customer [Policy Text Block]
Revenue Recognition
 
We adopted ASU
2014
-
09,
“Revenue from Contracts with Customers”, Topic
606,
on
January 1, 2018.
The guidance focuses on the core principle for revenue recognition.
 
The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve that core principle, an entity should apply the following steps:
 
Step
1:
Identify the contract(s) with a customer.
 
Step
2:
Identify the performance obligations in the contract.
 
Step
3:
Determine the transaction price.
 
Step
4:
Allocate the transaction price to the performance obligations in the contract.
 
Step
5:
Recognize revenue when (or as) the entity satisfies a performance obligation.
 
We have revenue from
two
subsidiaries, Odor-
No
-More and BLEST. Odor-
No
-More identifies its contract with the customer through a written purchase order, in which the details of the contract are defined including the transaction price and method of shipment. The only performance obligation is to create and ship the product and each product has separate pricing. Odor-
No
-More recognizes revenue at a point in time when the order for its goods are shipped if its agreement with the customer is FOB Odor-
No
-More’s warehouse facility, and when goods are delivered to its customer if its agreement with the customer is FOB destination. Revenue is recognized with a reduction for sales discounts, as appropriate and negotiated in the customer’s purchase order. Odor-
No
-More also installs misting systems for which it bills on a time and materials basis. It identifies its contract with the customer through a written purchase order in which the details of the time to be billed and materials purchased and an estimated completion date. The performance obligation is the completion of the installation. Revenue is recognized in arrears as the work is performed.
 
BLEST identifies services to be performed in a written contract, which specifies the performance obligations and the rate at which the services will be billed. Each service is separately negotiated and priced. Revenue is recognized as services are performed and completed. BLEST’s contracts typically call for invoicing for time and materials incurred for that contract. A few contracts have called for milestone or fixed cost payments where BLEST bills an agreed to amount per month for the life of the contract. In these instances, completed work, billed hourly, is recognized as revenue. If the billing amount is greater or lesser than the completed work, a receivable or payable is created. These accounts are adjusted upon additional billings as the work is completed. To date, there have been
no
discounts or other financing terms for the contracts.
 
In the event that we generate revenues from royalties or license fees from our intellectual property, we anticipate a licensee would pay a license fee in
one
or more installments and ongoing royalties based on their sales of products incorporating or using our licensed intellectual property. Upon entering into a licensing agreement, we will determine the appropriate method of recognizing the royalty and license fees.
Government Grants [Policy Text Block]
Government Grants
 
We have been awarded multiple research grants from the Canadian National Research Institute – Industrial Research Assistance Program (NRC-IRAP) and the National Science and Engineering Research Council of Canada (NSERC). The grants received are considered other income and are included in our consolidated statements of operations. We received our
first
grant in
2015
and have been awarded over
75
grants totaling over
$3.
million. Some of the funds from these grants are given directly to
third
parties (such as the University of Alberta or a
third
-party research scientist) to support research on our technology. The grants have terms generally ranging between
six
and
eighteen
months and support a majority, but
not
all, of the related research budget costs. This cooperative research allows us to utilize (i) a depth of resources and talent to accomplish highly skilled work, (ii) financial aid to support research and development costs, (iii) independent and credible validation of our technical claims.
 
The grants typically provide for (i) recurring monthly amounts, (ii) reimbursement of costs for research talent for which we invoice to request payment, and (iii) ancillary cost reimbursement for research talent travel related costs. All awarded grants have specific requirements on how the money is spent, typically to employ researchers.
None
of the funds
may
be used for general administrative expenses or overhead in the United States. These grants have substantially increased our level of research and development activities in Canada. We continue to apply for Canadian government and agency grants to fund research and development activities.
Not
all of our grant applications have been awarded, and
no
assurance can be made that any pending grant application, or any future grant applications, will be awarded.
Income Tax, Policy [Policy Text Block]
Income
Taxes
 
The asset and liability approach is used to recognize deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the carrying amounts and the tax bases of asset and liabilities. Deferred tax assets and liabilities are determined based on the differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. The effect on deferred tax asset and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.
 
We account for uncertainties in income tax law under a comprehensive model for the financial statement recognition, measurement, presentation and disclosure of uncertain tax positions taken or expected to be taken in income tax returns as prescribed by generally accepted accounting principles (“GAAP”). Under GAAP, the tax effects of a position are recognized only if it is “more-likely-than-
not”
to be sustained by the taxing authority as of the reporting date. If the tax position is
not
considered “more-likely-than-
not”
to be sustained, then
no
benefits of the position are recognized.
Fair Value of Financial Instruments, Policy [Policy Text Block]
Fair Value of Financial Instruments
 
Management believes the carrying amounts of the Company’s financial instruments (excluding debt and equity instruments) as of
December 31, 2018
and
2019
approximate their respective fair values because of the short-term nature of these instruments. Such instruments consist of cash, accounts receivable, prepaid assets, accounts payable, lines of credit, and other assets and liabilities.
 
Tax Credits [Policy Text Block]
Tax Credits
 
Our research and development activities in Canada
may
entitle our Canadian subsidiary to claim benefits under the “Scientific Research and Experimental Development Program”, a Canadian federal tax incentive program designed to encourage Canadian businesses of all sizes and in all sectors to conduct research and development in Canada. Benefits under the program include credits to taxable income. If our Canadian subsidiary does
not
have taxable income in a reporting period, we instead receive a tax refund from the Canadian Revenue Authority. Those refunds are classified in Other Income on our Consolidated Statement of Operations and Comprehensive Loss.
Lessee, Leases [Policy Text Block]
Leases
 
In
February 2016,
the FASB issued ASU Update
No.
2016
-
02,
“Leases,” which requires lessees to recognize most leases on their balance sheets as a right-of-use asset with a corresponding lease liability, and lessors to recognize a net lease investment. Additional qualitative and quantitative disclosures are also required. We adopted this standard effective
January 1, 2019
using the effective date option, as approved by the FASB in
July 2018,
which resulted in a
$399,000
gross up of assets and liabilities; this balance
may
fluctuate over time as we enter into new leases, extend or terminate current leases. As of
December 31, 2019,
the gross up of our balance sheet related to our operating leases totals
$411,000.
Upon the transition to the ASC
842,
the Company elected to use hindsight as a practical expedient with respect to determining the lease terms (as we considered our updated expectations of acceptance of the ONM lease renewal) and in assessing any impairment of right-of-use assets for existing leases.
No
impairment is expected at this time.
New Accounting Pronouncements, Policy [Policy Text Block]
Recent Accounting Pronouncements.
 
In
August 2018,
the FASB issued Accounting Standards Update
No.
2018
-
13,
“Fair Value Measurement (Topic
820
), Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement.” The amendments in this update modify the disclosure requirements on fair value measurements in Topic
820,
Fair Value Measurement. The amendments in this update are effective for public business entities for fiscal years beginning after
December 15, 2019,
including interim periods within that fiscal year. Management has
not
concluded its evaluation of the guidance. Its initial analysis is that it does
not
believe the new guidance will substantially impact the Company’s financial statements.
 
In
June 2018,
The FASB issued Accounting Standards Update
No.
2018
-
07,
“Compensation – Stock Compensation (topic
718
): Improvements to Nonemployee Share-Based Payment Accounting”. The amendments in this update expand the scope of Topic
718
to include share-based payment transactions for acquiring goods and services from nonemployees. An entity should apply the requirements of Topic
718
to nonemployee awards except for specific guidance on inputs to an option pricing model and the attribution of cost (that is, the period of time over which share-based payment awards vest and the pattern of cost recognition over that period). The amendments specify that Topic
718
applies to all share-based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor’s own operations by issuing share-based payment awards. The amendments also clarify that Topic
718
does
not
apply to share-based payments used to effectively provide (
1
) financing to the issuer or (
2
) awards granted in conjunction with selling goods or services to customers as part of a contract accounted for under Topic
606,
Revenue from Contracts and Customers. The amendments in this update are effective for public business entities for fiscal years beginning after
December 15, 2018,
including interim periods within that fiscal year. We implemented the new guidelines during
2019
and there was
not
a substantial impact to our stock compensation expense.