Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies (Policies)

Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2022

Basis of Accounting, Policy [Policy Text Block]

Basis of presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) as found in the Accounting Standards Codification (“ASC”) and Accounting Standards Updates ("ASU") of the Financial Accounting Standards Board (“FASB”) and pursuant to the rules and regulations of the SEC. Accordingly, they do not include all the information and footnotes required by such accounting principles for complete financial statements. In the opinion of management, all adjustments (which include normal recurring adjustments) considered necessary to present fairly each of the condensed consolidated balance sheet as of September 30, 2022, the condensed consolidated statements of operations for the three and nine months ended September 30, 2022 and September 30, 2021, the condensed consolidated statements of stockholders' equity for the three and nine months ended September 30, 2022 and September 30, 2021 and the condensed consolidated statements of cash flows for the nine months ended September 30, 2022 and September 30, 2021, as applicable, have been made. The condensed consolidated balance sheet as of December 31, 2021 has been derived from the Company’s audited financial statements as of such date, but it does not include all disclosures required by U.S. GAAP. The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements for the period ended December 31, 2021, which are included on Form 10-K filed with the Securities and Exchange Commission on February 24, 2022.

The results of operations for the three and nine months ended September 30, 2022 are not necessarily indicative of results that may be expected for the year ending December 31, 2022.

Consolidation, Policy [Policy Text Block]

Principles of consolidation

The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its Subsidiaries, both of which are wholly-owned subsidiaries. Significant inter-company accounts and transactions have been eliminated in consolidation.

Use of Estimates, Policy [Policy Text Block]

Use of estimates

The preparation of the condensed consolidated financial statements requires management of the Company to make a number of estimates and assumptions relating to the reported amount of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of expenses during the period. Significant items subject to such estimates and assumptions include the carrying amount and valuation of long-lived assets, valuation allowances for deferred tax assets, the determination of stock option expense and the determination of the fair value of stock warrants issued. Actual results could differ from those estimates.

Earnings Per Share, Policy [Policy Text Block]

Net loss per share

Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted net loss per share is computed by dividing the net loss by the weighted average number of common share equivalents outstanding for the period determined using the treasury-stock method or the if-converted method, as applicable. For purposes of this calculation, stock options, restricted stock units (RSUs) and warrants to purchase common stock are considered to be common stock equivalents and are only included in the calculation of diluted net loss per share when their effect is dilutive. The following shares underlying outstanding convertible notes, stock options, RSUs and warrants to purchase common stock were anti-dilutive due to a net loss in the periods presented and, therefore, were excluded from the dilutive weighted average securities computation for the three and nine months ended September 30, as indicated below:

	Three Months Ended September 30,				Nine Months Ended September 30,
Excluded potentially dilutive weighted average securities (1):	2022		2021		2022		2021

Options to purchase common stock		1,009,230		1,038,439		1,018,900		1,115,380
Unvested restricted stock units		3,221,803		3,772,069		3,921,702		4,543,145
Financing warrants to purchase common stock		6,372		6,372		6,372		6,372
Total potential dilutive weighted average securities		4,237,405		4,816,880		4,946,974		5,664,897

(1)	Securities are presented on a weighted average outstanding calculation as required if the securities were dilutive

Segment Reporting, Policy [Policy Text Block]

Segment and geographic information

Our chief operating decision maker (“CODM”) is the Chief Executive Officer. Operating segments are defined as components of an enterprise engaging in business activities for which discrete financial information is available and regularly reviewed by the CODM in deciding how to allocate resources and in assessing performance. The CODM views its operations and manages its business in one operating segment, and the Company operates in only one geographic segment.

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Concentration of credit risk

The Company did not generate revenue other than nominal revenue from the sale of inventory during the three and nine months ended September 30, 2022 or the three and nine months ended September 30, 2021. The accounts receivable balance on the Company's condensed consolidated balance sheets as of September 30, 2022 and December 31, 2021 consisted of amounts due from the return or sale of inventory and proceeds from assets held for sale.

New Accounting Pronouncements, Policy [Policy Text Block]

Recent accounting pronouncements

There were no recent accounting pronouncements or changes in accounting pronouncements during the nine months ended September 30, 2022 that are of significance or potential significance to the Company.

Insurance Proceeds [Policy Text Block]

Insurance Proceeds

On November 29, 2019, there was a fire in the AquaRefining area of the TRIC facility. As of December 31, 2021, the Company had received a total of $30.25 million in insurance payments as a result of the fire damage. The Company does not expect any additional insurance payments related to this matter.