Basis of Presentation and Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation and Principles of Consolidation	*Basis of Presentation and Principles of Consolidation* The accompanying condensed consolidated financial statements at June 30, 2021 and for the three-month and six-month periods ended June 30, 2021 and 2020, respectively, are unaudited, but include all adjustments, consisting of normal recurring entries, that management believes to be necessary for a fair presentation of the periods presented. Interim results are not necessarily indicative of results for a full year. Balance sheet amounts as of December 31, 2020 have been derived from our audited financial statements as of that date. The consolidated financial statements included herein have been prepared by us pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations. The consolidated financial statements should be read in conjunction with our audited financial statements contained in its Annual Report on Form 10-K for the year ended December 31, 2020 (as amended, the “2020 Annual Report”).
Liquidity and Capital Resources	*Liquidity and Capital Resources* At June 30, 2021, we had cash and cash equivalents and short-term investments of approximately $8.4 million. In order to ensure the Company had sufficient liquidity for the foreseeable future, on July 16, 2021, the Company announced the closing of the July 2021 Financing (as defined herein) for aggregate net proceeds of approximately $9.3 million (Note 7 – Subsequent Event). Management believes that our current cash and cash equivalents and short-term investments, together with the net proceeds from the July 2021 Financing, will be sufficient to fund the Company’s operations for the foreseeable future. This estimate is based, in part, upon our currently projected expenditures for the remainder of 2021 and the first seven months of 2022 of approximately $4.9 million (unaudited) to fund operating activities. These projected expenditures exclude any payments related to possible liquidated damages or dividends to be paid on the Preferred Stock (as defined herein). These projected expenditures and payments are also based upon numerous other assumptions and subject to many uncertainties, and our actual expenditures may be significantly different from these projections. While these projections represent the Company’s current expected expenditures, the Company has the ability to reduce the amounts as needed to manage its liquidity needs while still advancing its corporate objectives. The Company will ultimately be required to obtain additional funding in order to execute its long-term business plans, although it does not currently have commitments from any third parties to provide the Company with long term debt, capital or non-dilutive up-front payments from a potential strategic partner. The Company cannot assure that additional funding will be available on favorable terms, or at all. If the Company fails to obtain additional funding when needed, it may not be able to execute its business plans and its business may suffer, which would have a material adverse effect on its financial position, results of operations and cash flows.
Use of Estimates	*Use of Estimates* Preparation of the Company’s consolidated financial statements in conformance with U.S. GAAP requires the Company’s management to make estimates and assumptions that impact the reported amounts of assets, liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities in the Company’s consolidated financial statements and accompanying notes. The significant estimates in the Company’s consolidated financial statements relate to the valuation of equity awards, recoverability of deferred tax assets, and estimated useful lives of fixed assets, The Company bases estimates and assumptions on historical experience, when available, and on various factors that it believes to be reasonable under the circumstances. The Company evaluates its estimates and assumptions on an ongoing basis, and its actual results may differ from estimates made under different assumptions or conditions.
Stock Compensation	*Stock Compensation* The Company accounts for share-based awards to employees and nonemployees directors and consultants in accordance with the provisions of ASC 718, Compensation—Stock Compensation., and under the recently issued guidance following FASB’s pronouncement, ASU 2018-07, Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. Under ASC 718, and applicable updates adopted, share-based awards are valued at fair value on the date of grant and that fair value is recognized over the requisite service, or vesting, period. The Company values its equity awards using the Black-Scholes option pricing model, and accounts for forfeitures when they occur.
Foreign Currency Remeasurement	*Foreign Currency Remeasurement* The U.S. dollar has been determined to be the functional currency for the net assets of our German operations. The transactions are recorded in the local currencies and are remeasured at each reporting date using the historical rates for nonmonetary assets and liabilities and current exchange rates for monetary assets and liabilities at the balance sheet date. Exchange gains and losses from the remeasurement of monetary assets and liabilities are recognized in other income (loss). The Company recognized a gain (loss) of approximately $3,500 and ($9,500), respectively, for the three-month and six-month periods ended June 30, 2021 and a gain of approximately ($5,400) and $100, respectively, for the three and six-month periods ended June 30, 2020, respectively. Basic and Diluted Net Loss Per Common Share Basic and diluted net loss per common share is computed based on the weighted-average number of common shares outstanding. Diluted net income (loss) per share is computed by dividing the net income (loss) applicable to common stockholders by the weighted average number of common shares outstanding plus the number of additional common shares that would have been outstanding if all dilutive potential common shares had been issued using the treasury stock method. Common share equivalents that could potentially dilute net loss per share in the future, and which were excluded from the computation of diluted loss per share, totaled 2.9 million shares for each of the three-month and six-month periods ended June 30, 2021, and 7.9 million shares for each of the three-month and six-month periods ended June 30, 2020. Fair Value Measurements Assets and liabilities recorded at fair value on the balance sheets are categorized based upon the level of judgment associated with the inputs used to measure the fair value. Level inputs are as follows: Level 1 – quoted prices in active markets for identical assets or liabilities. Level 2 – other significant observable inputs for the assets or liabilities through corroboration with market data at the measurement date. Level 3 – significant unobservable inputs that reflect management’s best estimate of what market participants would use to price the assets or liabilities at the measurement date. We consider carrying amounts of accounts receivable, accounts payable and accrued expenses to approximate fair value due to the short-term nature of these financial instruments. Our non-financial assets are measured at fair value when there is an indicator of impairment and recorded at fair value only when an impairment charge is recognized.
Recently Issued Accounting Pronouncements	*Recently Issued Accounting Pronouncements* In June 2016, the FASB issued ASU No. 2016-13, Credit Losses - Measurement of Credit Losses on Financial Instruments (“ASC 326”). The standard significantly changes how entities will measure credit losses for most financial assets, including accounts and notes receivables. The standard will replace today’s “incurred loss” approach with an “expected loss” model, under which companies will recognize allowances based on expected rather than incurred losses. Entities will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The standard is effective for interim and annual reporting periods beginning after December 15, 2019. The adoption of ASU 2016-13 is not expected to have a material impact on the Company’s financial position, results of operations, and cash flows. Other recent authoritative guidance issued by the FASB (including technical corrections to the ASC), the American Institute of Certified Public Accountants, and the Securities and Exchange Commission (“SEC”) did not, or are not expected to, have a material impact on the Company’s consolidated financial statements and related disclosures.

Basis of Presentation and Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2021

Basis of Presentation and Principles of Consolidation

Basis of Presentation and Principles of Consolidation

The accompanying condensed consolidated financial statements at June 30, 2021 and for the three-month and six-month periods ended June 30, 2021 and 2020, respectively, are unaudited, but include all adjustments, consisting of normal recurring entries, that management believes to be necessary for a fair presentation of the periods presented. Interim results are not necessarily indicative of results for a full year. Balance sheet amounts as of December 31, 2020 have been derived from our audited financial statements as of that date.

The consolidated financial statements included herein have been prepared by us pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been condensed or omitted pursuant to such rules and regulations. The consolidated financial statements should be read in conjunction with our audited financial statements contained in its Annual Report on Form 10-K for the year ended December 31, 2020 (as amended, the “2020 Annual Report”).

Liquidity and Capital Resources

Liquidity and Capital Resources

At June 30, 2021, we had cash and cash equivalents and short-term investments of approximately $8.4 million. In order to ensure the Company had sufficient liquidity for the foreseeable future, on July 16, 2021, the Company announced the closing of the July 2021 Financing (as defined herein) for aggregate net proceeds of approximately $9.3 million (Note 7 – Subsequent Event). Management believes that our current cash and cash equivalents and short-term investments, together with the net proceeds from the July 2021 Financing, will be sufficient to fund the Company’s operations for the foreseeable future. This estimate is based, in part, upon our currently projected expenditures for the remainder of 2021 and the first seven months of 2022 of approximately $4.9 million (unaudited) to fund operating activities. These projected expenditures exclude any payments related to possible liquidated damages or dividends to be paid on the Preferred Stock (as defined herein). These projected expenditures and payments are also based upon numerous other assumptions and subject to many uncertainties, and our actual expenditures may be significantly different from these projections.

While these projections represent the Company’s current expected expenditures, the Company has the ability to reduce the amounts as needed to manage its liquidity needs while still advancing its corporate objectives. The Company will ultimately be required to obtain additional funding in order to execute its long-term business plans, although it does not currently have commitments from any third parties to provide the Company with long term debt, capital or non-dilutive up-front payments from a potential strategic partner. The Company cannot assure that additional funding will be available on favorable terms, or at all. If the Company fails to obtain additional funding when needed, it may not be able to execute its business plans and its business may suffer, which would have a material adverse effect on its financial position, results of operations and cash flows.

Use of Estimates

Use of Estimates

Preparation of the Company’s consolidated financial statements in conformance with U.S. GAAP requires the Company’s management to make estimates and assumptions that impact the reported amounts of assets, liabilities, revenues and expenses, and the disclosure of contingent assets and liabilities in the Company’s consolidated financial statements and accompanying notes. The significant estimates in the Company’s consolidated financial statements relate to the valuation of equity awards, recoverability of deferred tax assets, and estimated useful lives of fixed assets, The Company bases estimates and assumptions on historical experience, when available, and on various factors that it believes to be reasonable under the circumstances. The Company evaluates its estimates and assumptions on an ongoing basis, and its actual results may differ from estimates made under different assumptions or conditions.

Stock Compensation

Stock Compensation

The Company accounts for share-based awards to employees and nonemployees directors and consultants in accordance with the provisions of ASC 718, Compensation—Stock Compensation., and under the recently issued guidance following FASB’s pronouncement, ASU 2018-07, Compensation—Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. Under ASC 718, and applicable updates adopted, share-based awards are valued at fair value on the date of grant and that fair value is recognized over the requisite service, or vesting, period. The Company values its equity awards using the Black-Scholes option pricing model, and accounts for forfeitures when they occur.

Foreign Currency Remeasurement

Foreign Currency Remeasurement

The U.S. dollar has been determined to be the functional currency for the net assets of our German operations. The transactions are recorded in the local currencies and are remeasured at each reporting date using the historical rates for nonmonetary assets and liabilities and current exchange rates for monetary assets and liabilities at the balance sheet date. Exchange gains and losses from the remeasurement of monetary assets and liabilities are recognized in other income (loss). The Company recognized a gain (loss) of approximately $3,500 and ($9,500), respectively, for the three-month and six-month periods ended June 30, 2021 and a gain of approximately ($5,400) and $100, respectively, for the three and six-month periods ended June 30, 2020, respectively.

Basic and Diluted Net Loss Per Common Share

Basic and diluted net loss per common share is computed based on the weighted-average number of common shares outstanding. Diluted net income (loss) per share is computed by dividing the net income (loss) applicable to common stockholders by the weighted average number of common shares outstanding plus the number of additional common shares that would have been outstanding if all dilutive potential common shares had been issued using the treasury stock method. Common share equivalents that could potentially dilute net loss per share in the future, and which were excluded from the computation of diluted loss per share, totaled 2.9 million shares for each of the three-month and six-month periods ended June 30, 2021, and 7.9 million shares for each of the three-month and six-month periods ended June 30, 2020.

Fair Value Measurements

Assets and liabilities recorded at fair value on the balance sheets are categorized based upon the level of judgment associated with the inputs used to measure the fair value. Level inputs are as follows:

Level 1 – quoted prices in active markets for identical assets or liabilities.

Level 2 – other significant observable inputs for the assets or liabilities through corroboration with market data at the measurement date.

Level 3 – significant unobservable inputs that reflect management’s best estimate of what market participants would use to price the assets or liabilities at the measurement date.

We consider carrying amounts of accounts receivable, accounts payable and accrued expenses to approximate fair value due to the short-term nature of these financial instruments. Our non-financial assets are measured at fair value when there is an indicator of impairment and recorded at fair value only when an impairment charge is recognized.

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements

In June 2016, the FASB issued ASU No. 2016-13, Credit Losses - Measurement of Credit Losses on Financial Instruments (“ASC 326”). The standard significantly changes how entities will measure credit losses for most financial assets, including accounts and notes receivables. The standard will replace today’s “incurred loss” approach with an “expected loss” model, under which companies will recognize allowances based on expected rather than incurred losses. Entities will apply the standard’s provisions as a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective. The standard is effective for interim and annual reporting periods beginning after December 15, 2019. The adoption of ASU 2016-13 is not expected to have a material impact on the Company’s financial position, results of operations, and cash flows.

Other recent authoritative guidance issued by the FASB (including technical corrections to the ASC), the American Institute of Certified Public Accountants, and the Securities and Exchange Commission (“SEC”) did not, or are not expected to, have a material impact on the Company’s consolidated financial statements and related disclosures.