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Summary Of Significant Accounting Policies (Policy) | 12 Months Ended
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Dec. 31, 2020
Summary Of Significant Accounting Policies [Abstract] |
Use Of Estimates | Use of Estimates ﻿ The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires that management make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenue earned and expenses incurred during the reporting period. Actual results could differ from those estimates.
Proceeds From Grants | Proceeds from Grants ﻿ In 2020, the Company received $4.2 million of reimbursement from the National Institutes of Health and National Institute on Drug Abuse and $4.7 million in 2019. The Company records the proceeds from these grants as reductions to its research and development expenses.
Cash And Cash Equivalents And Concentration Of Credit Risk | Cash and Cash Equivalents and Concentration of Credit Risk ﻿ The Company invests in cash and cash equivalents and, in the past, marketable securities. The Company considers highly-liquid financial instruments with original maturities of three months or less to be cash equivalents. Highly liquid investments that are considered cash equivalents include money market accounts, money market funds and certificates of deposit. The carrying value of cash equivalents approximates fair value due to the short-term maturity of these securities. ﻿ The Company’s investment policy allows for investments in marketable securities with active secondary or resale markets, establishes diversification and credit quality requirements and limits investments by maturity and issuer. The Company maintains its investments at one financial institution.
Fair Value Measurements | Fair Value Measurements ﻿ The Company reports its cash and cash equivalents at fair value as Level 1, Level 2 or Level 3 using the following inputs: ﻿
| · |  | Level 1 includes quoted prices in active markets. The Company bases the fair value of money market funds on Level 1 inputs.
| · |  | Level 2 includes significant observable inputs, such as quoted prices for identical or similar investments, or other inputs that are observable and can be corroborated by observable market data for similar securities. The Company uses market pricing and other observable market inputs obtained from third-party providers. It uses the bid price to establish fair value where a bid price is available. The Company bases the fair value of its certificates of deposit, if any, on Level 2 inputs.
| · |  | Level 3 includes unobservable inputs that are supported by little or no market activity. The Company does not have any investments where the fair value is based on Level 3 inputs.
﻿ If a financial instrument uses inputs that fall in different levels of the hierarchy, the instrument will be categorized based upon the lowest level of input that is significant to the fair value calculation. A certificate of deposit totaling $13.0 million at December 31, 2019 was included within cash equivalents as a Level 2 input. The fair value of the remainder of cash and cash equivalents, including money market accounts, was based on Level 1 inputs at December 31, 2020 and 2019.
Business Segments | Business Segments ﻿ The Company reports segment information based on how it internally evaluates the operating performance of its business units, or segments. The Company’s operations are confined to one business segment: the development of novel drugs and diagnostics.
Stock-Based Compensation | Stock-based Compensation ﻿ The Company recognizes non-cash expense for the fair value of all stock options and other share-based awards. The Company uses the Black-Scholes option valuation model to calculate the fair value of stock options, using the single-option award approach and straight-line attribution method. This model requires the input of subjective assumptions including expected stock price volatility, expected life and estimated forfeitures of each award. These assumptions consist of estimates of future market conditions, which are inherently uncertain, and therefore, are subject to management's judgment. The Company recognizes the resulting fair value as expense on a straight-line basis over the vesting period of each respective stock option, generally four years. ﻿ The Company has granted share-based awards that vest upon achievement of certain performance criteria, or performance awards. The Company multiplies the number of performance awards by the fair value of its common stock on the date of grant to calculate the fair value of each award. It estimates an implicit service period for achieving performance criteria for each award. The Company recognizes the resulting fair value as expense over the implicit service period when it concludes that achieving the performance criteria is probable. The Company periodically reviews and updates as appropriate its estimates of implicit service periods and conclusions on achieving the performance criteria. Performance awards vest and common stock is issued upon achievement of the performance criteria.
Net Loss Per Share | Net Loss per Share ﻿ Basic net loss per share is computed on the basis of the weighted-average number of common shares outstanding for the reporting period. Diluted net loss per share is computed on the basis of the weighted-average number of common shares outstanding plus dilutive potential common shares outstanding using the treasury-stock method. Potential dilutive common shares consist of outstanding equity awards and warrants. There is no difference between the Company’s net loss and comprehensive loss. The numerators and denominators in the calculation of basic and diluted net loss per share were as follows (in thousands, except net loss per share data): ﻿
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  |
﻿ |  | Year ended December 31,
﻿ |  | 2020 |  | 2019
﻿Numerator: |  |  |  |  |  |
﻿Net loss |  | $ | (6,334) |  | $ | (4,631)
﻿Denominator: |  |  |  |  |  |
﻿Shares used in computing net loss per share, basic and diluted |  |  | 26,105 |  |  | 17,412
﻿Net loss per share, basic and diluted |  | $ | (0.24) |  | $ | (0.27)
﻿ |  |  |  |  |  |
﻿ Dilutive common stock options excluded from net loss per share, diluted |  |  | 2,145 |  |  | 2,932
﻿ Common stock warrants excluded from net loss per share, diluted |  |  | 554 |  |  | 4,504
﻿ |  |  |  |  |  |
﻿ The Company excluded weighted equity awards and warrants outstanding to purchase common stock from the calculation of diluted net loss per share because the effect of including these shares in this calculation would be anti-dilutive.
Fair Value Of Financial Instruments | Fair Value of Financial Instruments ﻿ Financial instruments include cash and cash equivalents, accounts payable and accrued liabilities. The estimated fair value of financial instruments has been determined using available market information or other appropriate valuation methodologies. However, considerable judgment is required in interpreting market data to develop estimates of fair value; therefore, the estimates are not necessarily indicative of the amounts that could be realized or would be paid in a current market exchange. The effect of using different market assumptions and/or estimation methodologies may be material to the estimated fair value amounts. The carrying amounts of cash and cash equivalents, accounts payable and accrued liabilities are at cost, which approximates fair value due to the short maturity of those instruments.
Research Contract Costs And Accruals | Research Contract Costs and Accruals ﻿ The Company has entered into various research and development contracts with research institutions and other third-party vendors. These agreements are generally cancelable, and related payments are recorded as research and development expenses as incurred. The Company records accruals for estimated ongoing research costs. When evaluating the adequacy of the accrued liabilities, the Company analyzes progress of the studies including the phase or completion of events, invoices received and contracted costs. Significant judgments and estimates are made in determining the accrued balances at the end of any reporting period. Actual results could differ from the Company’s estimates. The Company’s historical accrual estimates have not been materially different from actual costs.
Incentive Bonus Plan | Incentive Bonus Plan In 2020, the Company established the 2020 Cash Incentive Bonus Plan (the “Plan”) to incentivize Plan participants. Awards under the Plan are accounted for as liability awards under ASC 718 “Stock-based Compensation”. The fair value of each potential Plan award will be determined once a grant date occurs and will be remeasured each reporting period. Compensation expense associated with the Plan will be recognized over the expected achievement period for each Plan award, when a Performance Condition is considered probable of being met. See Note 8 for further discussion of the Plan.
Leases | ﻿ Leases ﻿ The Company recognizes assets and liabilities that arise from leases. For operating leases, the Company is required to recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statements of financial position. As the Company`s leases do not provide an implicit rate, it uses its incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. Lease expense for lease payments is recognized on a straight-line basis over the lease term.
Income Taxes | Income Taxes ﻿ The Company accounts for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax balances are adjusted to reflect tax rates based on currently enacted tax laws, which will be in effect in the years in which the temporary differences are expected to reverse. The Company has accumulated significant deferred tax assets that reflect the tax effects of net operating loss and tax credit carryovers and temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Realization of certain deferred tax assets is dependent upon future earnings. The Company is uncertain about the timing and amount of any future earnings. Accordingly, the Company offsets these deferred tax assets with a valuation allowance. ﻿ The Company accounts for uncertain tax positions in accordance with ASC 740, “Income Taxes”, which clarifies the accounting for uncertainty in tax positions. These provisions require recognition of the impact of a tax position in the Company’s financial statements only if that position is more likely than not of being sustained upon examination by taxing authorities, based on the technical merits of the position. Any interest and penalties related to uncertain tax positions will be reflected as a component of income tax expense.
Recent Accounting Pronouncements | Recent Accounting Pronouncements ﻿ The Company reviewed recently issued accounting pronouncements and plan to adopt those that are applicable to it, and does not expect the adoption of these pronouncements to have a material impact on its financial position, results of operations or cash flows. ﻿ In December 2019, the FABS issued ASU No. 2019-12, Income Taxes (Topic 740) Simplifying Accounting for Income Taxes as part of its initiative to reduce complexity in the accounting standards. The guidance amended certain disclosure requirements that had become redundant, outdated or superseded. Additionally, this guidance amends accounting for the interim period effects of changes in tax laws or rates and simplifies aspects of the accounting for franchise taxes. The guidance is effective for annual periods beginning after December 15, 2020, and is applicable for the Company in fiscal year 2021. Early adoption is permitted. The Company does not anticipate that this guidance will have a material impact on its consolidated financial statements. ﻿ In November 2018, the FASB issued ASU No. 2018-18, Collaborative Arrangements (Topic 808): Clarifying the Interaction Between Topic 808 and Topic 606. The amendments in this update provide guidance on how to assess whether certain transactions between collaborative arrangement participants should be accounted for within the revenue recognition standard. The amendments in this update are effective for interim and annual periods for the Company beginning on January 1, 2020. The adoption of this guidance did not have a material impact on the Company’s financial statements. ﻿ In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820) - Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (ASU 2018-13), which is designed to improve the effectiveness of disclosures by removing, modifying and adding disclosures related to fair value measurements. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The adoption of ASU 2018-13 did not have a material impact on the Company’s financial statements.

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