Document And Entity Information
Document And Entity Information - shares | 3 Months Ended | |
Mar. 31, 2024 | May 10, 2024 | |
Document Information [Line Items] | ||
Entity Central Index Key | 0000914139 | |
Entity Registrant Name | PARKERVISION INC | |
Amendment Flag | false | |
Current Fiscal Year End Date | --12-31 | |
Document Fiscal Period Focus | Q1 | |
Document Fiscal Year Focus | 2024 | |
Document Type | 10-Q | |
Document Quarterly Report | true | |
Document Period End Date | Mar. 31, 2024 | |
Document Transition Report | false | |
Entity File Number | 000-22904 | |
Entity Incorporation, State or Country Code | FL | |
Entity Tax Identification Number | 59-2971472 | |
Entity Address, Address Line One | 4446-1A Hendricks Avenue, Suite 354 | |
Entity Address, City or Town | Jacksonville | |
Entity Address, State or Province | FL | |
Entity Address, Postal Zip Code | 32207 | |
City Area Code | 904 | |
Local Phone Number | 732-6100 | |
Entity Current Reporting Status | Yes | |
Entity Interactive Data Current | Yes | |
Entity Filer Category | Non-accelerated Filer | |
Entity Small Business | true | |
Entity Emerging Growth Company | false | |
Entity Shell Company | false | |
Entity Common Stock, Shares Outstanding | 88,701,065 |
Condensed Consolidated Balance
Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 |
CURRENT ASSETS: | ||
Cash and cash equivalents | $ 1,734 | $ 2,560 |
Prepaid expenses | 60 | 61 |
Other current assets | 36 | 34 |
Total current assets | 1,830 | 2,655 |
Intangible assets, net | 996 | 1,055 |
Other assets, net | 312 | 313 |
Total assets | 3,138 | 4,023 |
CURRENT LIABILITIES: | ||
Accounts payable | 427 | 573 |
Accrued expenses: | ||
Salaries and wages | 49 | 23 |
Professional fees | 55 | 67 |
Other accrued expenses | 451 | 447 |
Related party note payable, current portion | 135 | 134 |
Convertible notes, current portion | 1,420 | 1,045 |
Total current liabilities | 2,537 | 2,289 |
LONG-TERM LIABILITIES: | ||
Secured contingent payment obligation | 29,643 | 29,402 |
Unsecured contingent payment obligations | 7,157 | 7,618 |
Related party note payable, net of current portion | 306 | 340 |
Convertible notes, net of current portion | 3,518 | 3,893 |
Total long-term liabilities | 40,624 | 41,253 |
Total liabilities | 43,161 | 43,542 |
COMMITMENTS AND CONTINGENCIES | ||
SHAREHOLDERS' DEFICIT: | ||
Common stock, $0.01 par value, 175,000 shares authorized, 88,361 and 87,681 shares issued and outstanding at March 31, 2024 and December 31, 2023, respectively | 884 | 877 |
Additional paid-in capital | 393,496 | 393,314 |
Accumulated deficit | (434,403) | (433,710) |
Total shareholders' deficit | (40,023) | (39,519) |
Total liabilities and shareholders' deficit | $ 3,138 | $ 4,023 |
Condensed Consolidated Balanc_2
Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares shares in Thousands | Mar. 31, 2024 | Dec. 31, 2023 |
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01 |
Common stock, shares authorized (in shares) | 175,000 | 175,000 |
Common stock, shares issued (in shares) | 88,361 | 87,681 |
Common stock, shares outstanding (in shares) | 88,361 | 87,681 |
Condensed Consolidated Statemen
Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | |
Mar. 31, 2024 | Mar. 31, 2023 | |
Revenue | $ 0 | $ 25,000 |
Cost of sales | (59) | (43) |
Gross margin | (59) | 24,957 |
Selling, general and administrative expenses | 773 | 12,085 |
Total operating expenses | 773 | 12,085 |
Other income | 23 | 0 |
Interest expense | (104) | (106) |
Change in fair value of contingent payment obligations | 220 | 349 |
Total interest and other | 139 | 243 |
Provision for income taxes | 0 | 0 |
Net (loss) income | (693) | 13,115 |
Other comprehensive income, net of tax | 0 | 0 |
Comprehensive (loss) income | $ (693) | $ 13,115 |
(Loss) earnings per common share | ||
Basic (in dollars per share) | $ (0.01) | $ 0.16 |
Diluted (in dollars per share) | $ (0.01) | $ 0.11 |
Weighted average common shares outstanding | ||
Basic (in shares) | 88,164 | 83,968 |
Diluted (in shares) | 88,164 | 121,696 |
Condensed Consolidated Statem_2
Condensed Consolidated Statements of Shareholders' Deficit (Unaudited) - USD ($) $ in Thousands | Total | Common Stock [Member] | Common Stock [Member] Conversion and Payment of Interest-in-kind on Convertible Debt [Member] | Additional Paid-in Capital [Member] | Additional Paid-in Capital [Member] Conversion and Payment of Interest-in-kind on Convertible Debt [Member] | Retained Earnings [Member] |
Total shareholders' deficit, beginning balances at Dec. 31, 2022 | $ (50,689) | $ 812 | $ 391,724 | $ (443,225) | ||
Issuance of common stock and warrants in private offerings, net of issuance costs | 8 | 127 | ||||
Issuance of common stock upon exercise of options and warrants | 1 | 3 | ||||
Issuance of common stock, warrants, and options for services | 2 | 79 | ||||
Issuance of common stock upon conversion and payment of interest-in-kind on convertible debt | $ 20 | $ 270 | ||||
Share-based compensation, net of shares withheld for taxes | 2 | 185 | ||||
Comprehensive (loss) income for the period | 13,115 | 13,115 | ||||
Ending balances at Mar. 31, 2023 | (36,877) | 845 | 392,388 | (430,110) | ||
Total shareholders' deficit, beginning balances at Dec. 31, 2023 | (39,519) | 877 | 393,314 | (433,710) | ||
Issuance of common stock and warrants in private offerings, net of issuance costs | 0 | 0 | ||||
Issuance of common stock upon exercise of options and warrants | 0 | 0 | ||||
Issuance of common stock, warrants, and options for services | 1 | 18 | ||||
Issuance of common stock upon conversion and payment of interest-in-kind on convertible debt | $ 6 | $ 92 | ||||
Share-based compensation, net of shares withheld for taxes | 0 | 72 | ||||
Comprehensive (loss) income for the period | (693) | (693) | ||||
Ending balances at Mar. 31, 2024 | $ (40,023) | $ 884 | $ 393,496 | $ (434,403) |
Condensed Consolidated Statem_3
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2024 | Mar. 31, 2023 | |
CASH FLOWS FROM OPERATING ACTIVITIES: | ||
Net (loss) income | $ (693) | $ 13,115 |
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities: | ||
Depreciation and amortization | 60 | 66 |
Share-based compensation | 72 | 187 |
Gain on changes in fair value of contingent payment obligations | (220) | (349) |
Loss on disposal/impairment of equipment and intangible assets | 0 | 43 |
Paid in kind interest expense | 98 | 90 |
Changes in operating assets and liabilities: | ||
Prepaid expenses and other assets | 18 | 105 |
Accounts payable and accrued expenses | (128) | (103) |
Total adjustments | (100) | 39 |
Net cash (used in) provided by operating activities | (793) | 13,154 |
CASH FLOWS FROM INVESTING ACTIVITIES: | ||
Purchases of property and equipment | 0 | 0 |
Net cash used in investing activities | 0 | 0 |
CASH FLOWS FROM FINANCING ACTIVITIES: | ||
Net proceeds from issuance of common stock in private offerings | 0 | 135 |
Net proceeds from exercise of options and warrants | 0 | 4 |
Net cash (used in) provided by financing activities | (33) | 797 |
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH | (826) | 13,951 |
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, beginning of period | 2,560 | 109 |
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, end of period | 1,734 | 14,060 |
Notes Payable, Other Payables [Member] | ||
CASH FLOWS FROM FINANCING ACTIVITIES: | ||
Borrowings | 0 | 700 |
Repayments | $ (33) | $ (42) |
Note 1 - Description of Busines
Note 1 - Description of Business | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Nature of Operations [Text Block] | 1. ParkerVision, Inc. (“ParkerVision”, “we” or the “Company”) is in the business of innovating fundamental wireless hardware technologies and products. We have designed and developed proprietary radio frequency (“RF”) technologies and integrated circuits based on those technologies, and we license those technologies to others for use in wireless communication products. We have expended significant financial and other resources to research and develop our RF technologies and to obtain patent protection for those technologies in the United States of America (“U.S.”) and certain foreign jurisdictions. We believe certain patents protecting our proprietary technologies have been broadly infringed by others, and therefore the primary focus of our business plan is the enforcement of our intellectual property rights through patent licensing and infringement litigation efforts. We currently have patent enforcement actions ongoing in various U.S. district courts against mobile handset, smart television and other WiFi product providers, as well as semiconductor suppliers, for the infringement of a number of our RF patents. We have made significant investments in developing and protecting our technologies. |
Note 2 - Liquidity and Going Co
Note 2 - Liquidity and Going Concern | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Substantial Doubt about Going Concern [Text Block] | 2. For the three March 31, 2024 March 31, 2024 may first twelve one Our current capital resources are not twelve may twelve twelve may not We expect to continue to invest in the support of our patent licensing and enforcement program. The long-term continuation of our business plan is dependent upon the generation of sufficient cash flows from our technologies and/or products to offset expenses and debt obligations. In the event that we do not |
Note 3 - Basis of Presentation
Note 3 - Basis of Presentation | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Basis of Accounting [Text Block] | 3. The accompanying unaudited condensed consolidated financial statements for the period ended March 31, 2024 10 10 01 X. three March 31, 2024 not may December 31, 2024 The year-end condensed consolidated balance sheet data was derived from audited financial statements for the year ended December 31, 2023 10 December 31, 2023 2023 The condensed consolidated financial statements include the accounts of ParkerVision, Inc. and its wholly-owned German subsidiary, ParkerVision GmbH, after elimination of all intercompany transactions and accounts. Cash, cash equivalents, and restricted cash at March 31, 2023 May 2023. |
Note 4 - Accounting Policies
Note 4 - Accounting Policies | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Significant Accounting Policies [Text Block] | 4. There have been no 2023 not |
Note 5 - Revenue
Note 5 - Revenue | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Revenue from Contract with Customer [Text Block] | 5. We have an active monitoring and enforcement program with respect to our intellectual property rights that includes seeking appropriate compensation from third may 606, No revenue was recognized during the three March 31, 2024 three March 31, 2023 third |
Note 6 - (Loss) Earnings Per Co
Note 6 - (Loss) Earnings Per Common Share | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Earnings Per Share [Text Block] | 6. Basic (loss) earnings per common share is determined based on the weighted-average number of common shares outstanding during each period. Diluted loss per common share is the same as basic loss per common share for the three March 31, 2024 three March 31, 2024 2023 Three Months Ended March 31, 2024 2023 Numerator: Net (loss) income $ (693 ) $ 13,115 Effect of dilutive securities - 99 Net (loss) income adjusted for dilutive effect (693 ) 13,214 Denominator: Weighted-average basic shares outstanding 88,164 83,968 Effect of dilutive securities - 37,728 Weighted-average diluted shares 88,164 121,696 Basic (loss) earnings per share $ (0.01 ) $ 0.16 Diluted (loss) earnings per share $ (0.01 ) $ 0.11 Diluted earnings per common share for the three March 31, 2024 2023 March 31, 2024 2023 Three Months Ended March 31, 2024 2023 Options outstanding 27,134 17,526 Warrants outstanding 10,346 7,346 Shares underlying convertible notes 36,425 - 73,905 24,872 |
Note 7 - Intangible Assets
Note 7 - Intangible Assets | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Intangible Assets Disclosure [Text Block] | 7. Intangible assets consist of the following (in thousands): March 31, 2024 December 31, 2023 Patents and copyrights $ 10,431 $ 10,431 Accumulated amortization (9,435 ) (9,376 ) $ 996 $ 1,055 |
Note 8 - Debt
Note 8 - Debt | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Long-Term Debt [Text Block] | 8. Related Party Note Payable We have an unsecured promissory note of approximately $0.4 million payable to Sterne, Kessler, Goldstein, & Fox, PLLC (“SKGF”), a related party, for outstanding unpaid fees for legal services. The SKGF note, as amended from time to time, accrues interest at a rate of 4% per annum, requires monthly payments of principal and interest of $12,500 with a final balloon payment of approximately $0.02 million in April 2027. March 31, 2024 2 |
Note 9 - Convertible Notes
Note 9 - Convertible Notes | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Convertible Debt [Text Block] | 9. For the three March 31, 2024 three March 31, 2024 On May 10, 2024, June 19, 2019, September 13, 2019, March 15, 2026, March 31, 2024. January 2025 August 2027 16. At March 31, 2024, 2 Convertible notes payable at March 31, 2024 December 31, 2023 Principal Outstanding as of March 31, December 31, Description Fixed Conversion Rate Stated Interest Rate Maturity Date 2024 2023 Convertible note dated September 18, 2018 $ 0.25 8.0 % March 18, 2026 425 425 Convertible notes dated February/March 2019 $ 0.25 8.0 % February 28, 2026 to March 13, 2026 750 750 Convertible notes dated June/July 2019 $ 0.10 8.0 % June 7, 2024 to July 1 295 295 Convertible notes dated July 18, 2019 $ 0.08 7.5 % July 18, 2024 700 700 Convertible note dated September 13, 2019 $ 0.10 8.0 % September 13, 2 50 50 Convertible notes dated January 8, 2020 $ 0.13 8.0 % January 8, 2025 3 450 450 Convertible notes dated May-August 2022 $ 0.13 8.0 % May 10, 2027 to August 3, 2027 1,468 1,468 Convertible note dated January 11, 2023 $ 0.16 9.0 % January 11, 2028 3 500 500 Convertible notes dated January 13, 2023 $ 0.16 9.0 % January 13, 2028 200 200 Convertible note dated September 15, 2023 $ 0.25 8.0 % March 15, 2026 100 100 Total principal balance 4,938 4,938 Less current portion 1,420 1,045 $ 3,518 $ 3,893 1 On May 10, 2024, one March 15, 2026 2 On May 10, 2024, March 15, 2026 3 The maturity date may one ten |
Note 10 - Contingent Payment Ob
Note 10 - Contingent Payment Obligations | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Contingencies Disclosure [Text Block] | 10. Secured Contingent Payment Obligation The following table provides a reconciliation of our secured contingent payment obligation, measured at estimated fair market value, for the three March 31, 2024 December 31, 2023 Three Months Ended March 31, 2024 Year Ended December 31, 2023 Secured contingent payment obligation, beginning of period $ 29,402 $ 40,708 Borrowings - 5,000 Repayments - (13,925 ) Change in fair value 241 (2,381 ) Secured contingent payment obligation, end of period $ 29,643 $ 29,402 Our secured contingent payment obligation consists of a secured, non-recourse note (the "Note") and a prepaid forward purchase contract (the "PPFPA") with Brickell Key Investments, LP (“Brickell”). August 14, 2028. one hundred first zero not not We have elected to measure our secured contingent payment obligation at its estimated fair value based on probability-weighted estimated cash outflows, discounted back to present value using a discount rate determined in accordance with accepted valuation methods (see Note 11 The underlying carrying value of the Note, which includes the Face Value plus accrued interest, was approximately $53.0 million and $51.0 million as of March 31, 2024 December 31, 2023 11. March 31, 2024 Unsecured Contingent Payment Obligations The following table provides a reconciliation of our unsecured contingent payment obligations, measured at estimated fair market value, for the three March 31, 2024 December 31, 2023 Three Months Ended March 31, 2024 Year Ended December 31, 2023 Unsecured contingent payment obligations, beginning of period $ 7,618 $ 5,089 Change in fair value (461 ) 2,529 Unsecured contingent payment obligations, end of period $ 7,157 $ 7,618 Our unsecured contingent payment obligations represent amounts payable to others from future patent-related proceeds including (i) a termination fee due to a litigation funder and (ii) contingent payment rights issued to accredited investors in connection with equity financings (“CPRs”). We have elected to measure these unsecured contingent payment obligations at their estimated fair value based on probability-weighted estimated cash outflows, discounted back to present value using a discount rate determined in accordance with accepted valuation methods. The unsecured contingent payment obligations will be remeasured to fair value at each reporting period with changes recorded in the condensed consolidated statements of comprehensive loss until the contingency is resolved (see Note 11 |
Note 11 - Fair Value Measuremen
Note 11 - Fair Value Measurements | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Fair Value Disclosures [Text Block] | 11. The following tables summarize the fair value of our contingent payment obligations measured at fair value on a recurring basis as of March 31, 2024 December 31, 2023 Fair Value Measurements Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2024: Liabilities: Secured contingent payment obligation $ 29,643 $ - $ - $ 29,643 Unsecured contingent payment obligations 7,157 - - 7,157 Fair Value Measurements Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2023: Liabilities: Secured contingent payment obligation $ 29,402 $ - $ - $ 29,402 Unsecured contingent payment obligations 7,618 - - 7,618 The fair values of our secured and unsecured contingent payment obligations were estimated using a probability-weighted income approach based on various cash flow scenarios as to the outcome of patent-related actions both in terms of timing and amount, discounted to present value using a risk-adjusted rate. We used a risk-adjusted discount rate for the secured and unsecured contingent payment obligations of 18.50% and 18.81%, respectively, at March 31, 2024 The following table provides quantitative information about the significant unobservable inputs used in the measurement of fair value for both the secured and unsecured contingent payment obligations at March 31, 2024 Secured Contingent Payment Obligation Unsecured Contingent Payment Obligations Unobservable Inputs Low Weighted Average High Low Weighted Average High Estimated undiscounted cash outflows (in millions) $ - $ 42.4 $ 79.6 $ - $ 9.1 $ 10.8 Duration (in years) 0.5 2.4 3.3 0.5 1.6 3.3 Estimated probabilities 5 % 19 % 35 % 5 % 21 % 35 % We evaluate the estimates and assumptions used in determining the fair value of our contingent payment obligations each reporting period and make any adjustments prospectively based on those evaluations. Changes in any of these Level 3 |
Note 12 - Legal Proceedings
Note 12 - Legal Proceedings | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Commitments and Contingencies Disclosure [Text Block] | 12. From time to time, we are subject to legal proceedings and claims which arise in the ordinary course of our business. These proceedings include patent enforcement actions initiated by us against others for the infringement of our technologies, as well as proceedings brought by others against us at the Patent Trial and Appeal Board of the U.S. Patent and Trademark Office (“PTAB”) in an attempt to invalidate certain of our patent claims. The majority of our litigation, including our PTAB proceedings, is being paid for through contingency fee arrangements with our litigation counsel as well as third third ParkerVision v. Qualcomm (Middle District of Florida-Orlando Division) - Appealed to U.S. Court of Appeals for the Federal Circuit In March 2022, May 2014. not three April 2022, November 6, 2023, 30 ParkerVision v. Apple and Qualcomm (Middle District of Florida-Jacksonville Division) We have a patent infringement case in the Middle District of Florida against Apple Inc. (“Apple”) and Qualcomm, filed in December 2015, August 2020. March 2020, 19, April 2020, ParkerVision v. LG (District of New Jersey) In July 2017, ParkerVision v. Apple and Qualcomm March 2018, ParkerVision v. Intel (Western District of Texas) We filed two patent infringement complaints in the Western District of Texas against Intel Corporation ("Intel") in 2020, first February 6, 2023. November 2022, January 2023. February 6, 2023 February 7, 2023, ParkerVision v. TCL (Western District of Texas) We filed two 2020 2021 first January 2023, ParkerVision v. LGE (Western District of Texas) We filed a patent infringement action in the Western District of Texas against LG Electronics, a South Korean company ("LGE") in 2021, June 2022 , January 2023, ParkerVision v. Realtek (Western District of Texas) We filed two patent infringement actions in the Western District of Texas against Realtek Semiconductor Corp. ("Realtek"), the first 2022 second 2023 , January 2024 first first January 2025 . second ParkerVision v. MediaTek (Western District of Texas) We filed three patent infringement actions in the Western District of Texas against MediaTek Inc. and MediaTek USA Inc. (collectively, "MediaTek"), the first 2022 two 2023, January 2024 first first December 2024. second June 2024 October 2025. ParkerVision v. Texas Instruments (Western District of Texas) We filed a patent infringement action in the Western District of Texas against Texas Instruments ("TI") in 2023, December 2023, not June 2024 May 2025. ParkerVision v. NXP Semiconductors (Western District of Texas) We filed a patent infringement action in the Western District of Texas against NXP Semiconductors ("NXP") in 2023, June 2024, August 2025 . Intel (USPTO) v. ParkerVision (PTAB) We have an appeal pending in an IPR action, originally filed by Intel, against our U.S. patent 8,190,108, '108 February 2023 June 2022, '108 '108 May 9, 2024. TCL and LGE v. ParkerVision (PTAB) We have two 7,292,835 ‘835 7,110,444 ‘444 September 2022. November 2022, June 3, 2024. MediaTek v. ParkerVision (PTAB) MediaTek filed an IPR petition in November 2023 '835 first |
Note 13 - Stock Authorization a
Note 13 - Stock Authorization and Issuance | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Equity [Text Block] | 13. Stock Issuances Payment for Services During the three March 31, 2024 third one Common Stock Warrants As of March 31, 2024 March 31, 2024 |
Note 14 - Share-based Compensat
Note 14 - Share-based Compensation | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Share-Based Payment Arrangement [Text Block] | 14. There has been no 2023 For the three March 31, 2024 2023 March 31, 2024 |
Note 15 - Income Taxes
Note 15 - Income Taxes | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Income Tax Disclosure [Text Block] | 15. The Company's effective income tax rate was 0.0% for each of the three March 31, 2024 2023 not 2023 2024 |
Note 16 - Related Party Transac
Note 16 - Related Party Transactions | 3 Months Ended |
Mar. 31, 2024 | |
Notes to Financial Statements | |
Related Party Transactions Disclosure [Text Block] | 16. On May 10, 2024, three June 19, 2019 September 13, 2019 March 15, 2026, January 8, 2020 May 10, 2022, May 10, 2022 September 15, 2023, August 3, 2022 |
Insider Trading Arrangements
Insider Trading Arrangements | 3 Months Ended |
Mar. 31, 2024 | |
Insider Trading Arr Line Items | |
Material Terms of Trading Arrangement [Text Block] | 5. On May 10, 2024, three June 19, 2019 $25,000 September 13, 2019 $50,000, March 15, 2026, 8% 5% $475,000 $50,000 January 8, 2020 $200,000 May 10, 2022, $100,000 May 10, 2022 $100,000 September 15, 2023, $25,000 August 3, 2022 10.1 10.7 The foregoing information is furnished in response to Item 1.01 2.03 8 not 18 1934, |
Rule 10b5-1 Arrangement Terminated [Flag] | false |
Rule 10b5-1 Arrangement Adopted [Flag] | false |
Non-Rule 10b5-1 Arrangement Terminated [Flag] | false |
Non-Rule 10b5-1 Arrangement Adopted [Flag] | false |
Note 6 - (Loss) Earnings Per _2
Note 6 - (Loss) Earnings Per Common Share (Tables) | 3 Months Ended |
Mar. 31, 2024 | |
Notes Tables | |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] | Three Months Ended March 31, 2024 2023 Numerator: Net (loss) income $ (693 ) $ 13,115 Effect of dilutive securities - 99 Net (loss) income adjusted for dilutive effect (693 ) 13,214 Denominator: Weighted-average basic shares outstanding 88,164 83,968 Effect of dilutive securities - 37,728 Weighted-average diluted shares 88,164 121,696 Basic (loss) earnings per share $ (0.01 ) $ 0.16 Diluted (loss) earnings per share $ (0.01 ) $ 0.11 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] | Three Months Ended March 31, 2024 2023 Options outstanding 27,134 17,526 Warrants outstanding 10,346 7,346 Shares underlying convertible notes 36,425 - 73,905 24,872 |
Note 7 - Intangible Assets (Tab
Note 7 - Intangible Assets (Tables) | 3 Months Ended |
Mar. 31, 2024 | |
Notes Tables | |
Schedule of Finite-Lived Intangible Assets [Table Text Block] | March 31, 2024 December 31, 2023 Patents and copyrights $ 10,431 $ 10,431 Accumulated amortization (9,435 ) (9,376 ) $ 996 $ 1,055 |
Note 9 - Convertible Notes (Tab
Note 9 - Convertible Notes (Tables) | 3 Months Ended |
Mar. 31, 2024 | |
Notes Tables | |
Convertible Debt [Table Text Block] | Principal Outstanding as of March 31, December 31, Description Fixed Conversion Rate Stated Interest Rate Maturity Date 2024 2023 Convertible note dated September 18, 2018 $ 0.25 8.0 % March 18, 2026 425 425 Convertible notes dated February/March 2019 $ 0.25 8.0 % February 28, 2026 to March 13, 2026 750 750 Convertible notes dated June/July 2019 $ 0.10 8.0 % June 7, 2024 to July 1 295 295 Convertible notes dated July 18, 2019 $ 0.08 7.5 % July 18, 2024 700 700 Convertible note dated September 13, 2019 $ 0.10 8.0 % September 13, 2 50 50 Convertible notes dated January 8, 2020 $ 0.13 8.0 % January 8, 2025 3 450 450 Convertible notes dated May-August 2022 $ 0.13 8.0 % May 10, 2027 to August 3, 2027 1,468 1,468 Convertible note dated January 11, 2023 $ 0.16 9.0 % January 11, 2028 3 500 500 Convertible notes dated January 13, 2023 $ 0.16 9.0 % January 13, 2028 200 200 Convertible note dated September 15, 2023 $ 0.25 8.0 % March 15, 2026 100 100 Total principal balance 4,938 4,938 Less current portion 1,420 1,045 $ 3,518 $ 3,893 |
Note 10 - Contingent Payment _2
Note 10 - Contingent Payment Obligations (Tables) | 3 Months Ended |
Mar. 31, 2024 | |
Unsecured Debt [Member] | |
Notes Tables | |
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] | Three Months Ended March 31, 2024 Year Ended December 31, 2023 Unsecured contingent payment obligations, beginning of period $ 7,618 $ 5,089 Change in fair value (461 ) 2,529 Unsecured contingent payment obligations, end of period $ 7,157 $ 7,618 |
Secured Debt [Member] | |
Notes Tables | |
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] | Three Months Ended March 31, 2024 Year Ended December 31, 2023 Secured contingent payment obligation, beginning of period $ 29,402 $ 40,708 Borrowings - 5,000 Repayments - (13,925 ) Change in fair value 241 (2,381 ) Secured contingent payment obligation, end of period $ 29,643 $ 29,402 |
Note 11 - Fair Value Measurem_2
Note 11 - Fair Value Measurements (Tables) | 3 Months Ended |
Mar. 31, 2024 | |
Notes Tables | |
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] | Fair Value Measurements Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) March 31, 2024: Liabilities: Secured contingent payment obligation $ 29,643 $ - $ - $ 29,643 Unsecured contingent payment obligations 7,157 - - 7,157 Fair Value Measurements Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) December 31, 2023: Liabilities: Secured contingent payment obligation $ 29,402 $ - $ - $ 29,402 Unsecured contingent payment obligations 7,618 - - 7,618 |
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] | Secured Contingent Payment Obligation Unsecured Contingent Payment Obligations Unobservable Inputs Low Weighted Average High Low Weighted Average High Estimated undiscounted cash outflows (in millions) $ - $ 42.4 $ 79.6 $ - $ 9.1 $ 10.8 Duration (in years) 0.5 2.4 3.3 0.5 1.6 3.3 Estimated probabilities 5 % 19 % 35 % 5 % 21 % 35 % |
Note 2 - Liquidity and Going _2
Note 2 - Liquidity and Going Concern (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | ||
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023 | |
Net Income (Loss) Attributable to Parent | $ (693) | $ 13,115 | |
Net Cash Provided by (Used in) Operating Activities | (793) | $ 13,154 | |
Cash and Cash Equivalents, at Carrying Value | 1,734 | $ 2,560 | |
Retained Earnings (Accumulated Deficit) | (434,403) | (433,710) | |
Convertible Debt, Current | $ 1,420 | $ 1,045 |
Note 3 - Basis of Presentation
Note 3 - Basis of Presentation (Details Textual) $ in Millions | Mar. 31, 2023 USD ($) |
Restricted Cash | $ 13.9 |
Note 5 - Revenue (Details Textu
Note 5 - Revenue (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2024 | Mar. 31, 2023 | |
Contract with Customer, Liability, Revenue Recognized | $ 0 | $ 25,000 |
Note 6 - (Loss) Earnings Per _3
Note 6 - (Loss) Earnings Per Common Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | |
Mar. 31, 2024 | Mar. 31, 2023 | |
Net (loss) income | $ (693) | $ 13,115 |
Effect of dilutive securities | 0 | 99 |
Net (loss) income adjusted for dilutive effect | $ (693) | $ 13,214 |
Weighted-average basic shares outstanding (in shares) | 88,164 | 83,968 |
Effect of dilutive securities (in shares) | 0 | 37,728 |
Weighted-average diluted shares (in shares) | 88,164 | 121,696 |
Basic (loss) earnings per share (in dollars per share) | $ (0.01) | $ 0.16 |
Diluted (loss) earnings per share (in dollars per share) | $ (0.01) | $ 0.11 |
Note 6 - (Loss) Earnings Per _4
Note 6 - (Loss) Earnings Per Common Share - Antidilutive Securities (Details) - shares shares in Thousands | 3 Months Ended | |
Mar. 31, 2024 | Mar. 31, 2023 | |
Antidilutive securities (in shares) | 73,905 | 24,872 |
Share-Based Payment Arrangement, Option [Member] | ||
Antidilutive securities (in shares) | 27,134 | 17,526 |
Warrant [Member] | ||
Antidilutive securities (in shares) | 10,346 | 7,346 |
Convertible Debt Securities [Member] | ||
Antidilutive securities (in shares) | 36,425 | 0 |
Note 7 - Intangible Assets - In
Note 7 - Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 |
Patents and copyrights | $ 10,431 | $ 10,431 |
Accumulated amortization | (9,435) | (9,376) |
Finite-Lived Intangible Assets, Net | $ 996 | $ 1,055 |
Note 8 - Debt (Details Textual)
Note 8 - Debt (Details Textual) - Promissory Notes [Member] - Unsecured Debt [Member] - Sterne Kessler Goldstein Fox Pllc [Member] | 3 Months Ended |
Mar. 31, 2024 USD ($) | |
Debt Instrument, Face Amount | $ 400,000 |
Debt Instrument, Interest Rate, Stated Percentage | 4% |
Debt Instrument, Periodic Payment, Total | $ 12,500 |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid | 20,000 |
Fair Value, Inputs, Level 2 [Member] | |
Notes Payable, Fair Value Disclosure | $ 360,000 |
Note 9 - Convertible Notes (Det
Note 9 - Convertible Notes (Details Textual) - USD ($) shares in Millions | 3 Months Ended | ||
Mar. 31, 2024 | May 10, 2024 | Dec. 31, 2023 | |
Convertible Debt | $ 4,938,000 | $ 4,938,000 | |
Convertible Note June 19, 2019 [Member] | |||
Debt Instrument, Interest Rate, Stated Percentage | 8% | ||
Convertible Note June 19, 2019 [Member] | Subsequent Event [Member] | |||
Convertible Debt | $ 25,000 | ||
Debt Instrument, Interest Rate, Stated Percentage | 5% | ||
Convertible Note September 13, 2019 [Member] | |||
Debt Instrument, Interest Rate, Stated Percentage | 8% | ||
Convertible Note September 13, 2019 [Member] | Subsequent Event [Member] | |||
Convertible Debt | $ 50,000 | ||
Debt Instrument, Interest Rate, Stated Percentage | 5% | ||
Related Party Convertible Notes [Member] | Subsequent Event [Member] | |||
Convertible Debt | $ 475,000 | ||
Convertible Debt [Member] | |||
Debt Conversion, Converted Instrument, Amount | $ 0 | ||
Interest Expense, Debt | 100,000 | ||
Convertible Debt [Member] | Fair Value, Inputs, Level 2 [Member] | |||
Notes Payable, Fair Value Disclosure | $ 3,800,000 | ||
Convertible Debt [Member] | Conversion and Payment of Interest-in-kind on Convertible Debt [Member] | |||
Debt Conversion, Converted Instrument, Shares Issued (in shares) | 0.6 | ||
Convertible Notes Dated E [Member] | |||
Debt Instrument, Interest Rate, Stated Percentage | 2% |
Note 9 - Convertible Notes - Sc
Note 9 - Convertible Notes - Schedule Of Convertible Notes Payable (Details) - USD ($) $ / shares in Units, $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 | ||
Convertible Debt | $ 4,938 | $ 4,938 | ||
Convertible Debt, Current | 1,420 | 1,045 | ||
Convertible Debt, Noncurrent | $ 3,518 | 3,893 | ||
Convertible Note Dated September 18, 2018 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.25 | |||
Effective Interest Rate | 8% | |||
Convertible Debt | $ 425 | [1] | 425 | |
Convertible Notes Dated February/March 2019 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.25 | |||
Effective Interest Rate | 8% | |||
Convertible Debt | $ 750 | [2] | 750 | |
Convertible Notes Dated June/July 2019 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.1 | |||
Effective Interest Rate | 8% | |||
Convertible Debt | [3] | $ 295 | 295 | |
Convertible Notes Dated July 18, 2019 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.08 | |||
Effective Interest Rate | 7.50% | |||
Convertible Debt | $ 700 | [3] | 700 | |
Convertible Notes Dated September 13, 2019 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.1 | |||
Effective Interest Rate | 8% | |||
Convertible Debt | [2] | $ 50 | 50 | |
Convertible Notes Dated January 8, 2020 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.13 | |||
Effective Interest Rate | 8% | |||
Convertible Debt | [1] | $ 450 | 450 | |
Convertible Notes Dated May-August 2022 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.13 | |||
Effective Interest Rate | 8% | |||
Convertible Debt | $ 1,468 | 1,468 | ||
Convertible Notes Dated January 11, 2023 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.16 | |||
Effective Interest Rate | 9% | |||
Convertible Debt | $ 500 | 500 | ||
Convertible Notes Dated January 13, 2023 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.16 | |||
Effective Interest Rate | 9% | |||
Convertible Debt | $ 200 | 200 | ||
Convertible Note Dated September 15, 2023 [Member] | ||||
Fixed Conversion Rate (in dollars per share) | $ 0.25 | |||
Effective Interest Rate | 8% | |||
Convertible Debt | $ 100 | $ 100 | ||
[1]The maturity date may be extended by one-year increments for up to an additional ten years at the holders’ option at a reduced interest rate of 2%.[2]On May 10, 2024, this note was amended to extend its maturity date to March 15, 2026 and reduce its interest rate on a going forward basis from 8% to 5%.[3]On May 10, 2024, one note with a principal balance of $25,000 was amended to extend its maturity date to March 15, 2026 and reduce its interest rate on a going forward basis from 8% to 5%. |
Note 10 - Contingent Payment _3
Note 10 - Contingent Payment Obligations (Details Textual) - Secured, Non-recourse Promissory Note [Member] - Brickell [Member] - USD ($) | Mar. 31, 2024 | Dec. 31, 2023 | Aug. 14, 2023 |
Debt Instrument, Face Amount | $ 45,500,000 | ||
Debt Instrument, Payment, Percentage of Distributions, First Limit | 100% | ||
Debt Instrument, Payment, Distributions, First Limit | $ 5.8 | ||
Long-Term Debt, Gross | $ 53,000,000 | $ 51,000,000 |
Note 10 - Contingent Payment _4
Note 10 - Contingent Payment Obligations - Reconciliation Of Secured Contingent Obligation At Fair Value (Details) - Contingent Payment Obligation [Member] - Secured Debt [Member] - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023 | |
Secured contingent payment obligation, beginning of period | $ 29,402 | $ 40,708 | $ 40,708 |
Borrowings | 0 | 5,000 | |
Repayments | 0 | (13,925) | |
Change in fair value | 241 | (2,381) | |
Secured contingent payment obligation, end of period | $ 29,643 | $ 29,402 | $ 29,402 |
Note 10 - Contingent Payment _5
Note 10 - Contingent Payment Obligations - Reconciliation Of Unsecured Contingent Obligation At Fair Value (Details) - Contingent Payment Obligation [Member] - Unsecured Debt [Member] - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
Mar. 31, 2024 | Dec. 31, 2023 | |
Unsecured contingent payment obligations, beginning of period | $ 7,618 | $ 5,089 |
Change in fair value | (461) | 2,529 |
Unsecured contingent payment obligations, end of period | $ 7,157 | $ 7,618 |
Note 11 - Fair Value Measurem_3
Note 11 - Fair Value Measurements (Details Textual) | Mar. 31, 2024 |
Measurement Input, Discount Rate [Member] | Secured Debt [Member] | |
Debt Instrument, Measurement Input | 0.185 |
Measurement Input, Discount Rate [Member] | Unsecured Debt [Member] | |
Debt Instrument, Measurement Input | 0.1881 |
Measurement Input, Risk Free Interest Rate [Member] | Secured Debt [Member] | |
Debt Instrument, Measurement Input | 0.045 |
Measurement Input, Risk Free Interest Rate [Member] | Unsecured Debt [Member] | |
Debt Instrument, Measurement Input | 0.0481 |
Measurement Input, Entity Credit Risk [Member] | Secured Debt [Member] | |
Debt Instrument, Measurement Input | 0.08 |
Measurement Input, Entity Credit Risk [Member] | Unsecured Debt [Member] | |
Debt Instrument, Measurement Input | 0.08 |
Litigation Inherent Risk [Member] | Secured Debt [Member] | |
Debt Instrument, Measurement Input | 0.06 |
Litigation Inherent Risk [Member] | Unsecured Debt [Member] | |
Debt Instrument, Measurement Input | 0.06 |
Note 11 - Fair Value Measurem_4
Note 11 - Fair Value Measurements - Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 |
Secured Contingent Payment Obligation [Member] | ||
Liabilities | $ 29,643 | $ 29,402 |
Secured Contingent Payment Obligation [Member] | Fair Value, Inputs, Level 1 [Member] | ||
Liabilities | 0 | 0 |
Secured Contingent Payment Obligation [Member] | Fair Value, Inputs, Level 2 [Member] | ||
Liabilities | 0 | 0 |
Secured Contingent Payment Obligation [Member] | Fair Value, Inputs, Level 3 [Member] | ||
Liabilities | 29,643 | 29,402 |
Unsecured Contingent Payment Obligation [Member] | ||
Liabilities | 7,157 | 7,618 |
Unsecured Contingent Payment Obligation [Member] | Fair Value, Inputs, Level 1 [Member] | ||
Liabilities | 0 | 0 |
Unsecured Contingent Payment Obligation [Member] | Fair Value, Inputs, Level 2 [Member] | ||
Liabilities | 0 | 0 |
Unsecured Contingent Payment Obligation [Member] | Fair Value, Inputs, Level 3 [Member] | ||
Liabilities | $ 7,157 | $ 7,618 |
Note 11 - Fair Value Measurem_5
Note 11 - Fair Value Measurements - Quantitative Information (Details) - Fair Value, Inputs, Level 3 [Member] | Mar. 31, 2024 USD ($) yr |
Estimated Undiscounted Cash Outflows [Member] | Secured Debt [Member] | Minimum [Member] | |
Measurement input | $ | 0 |
Estimated Undiscounted Cash Outflows [Member] | Secured Debt [Member] | Weighted Average [Member] | |
Measurement input | $ | 42,400 |
Estimated Undiscounted Cash Outflows [Member] | Secured Debt [Member] | Maximum [Member] | |
Measurement input | $ | 79,600 |
Estimated Undiscounted Cash Outflows [Member] | Unsecured Debt [Member] | Minimum [Member] | |
Measurement input | $ | 0 |
Estimated Undiscounted Cash Outflows [Member] | Unsecured Debt [Member] | Weighted Average [Member] | |
Measurement input | $ | 9,100 |
Estimated Undiscounted Cash Outflows [Member] | Unsecured Debt [Member] | Maximum [Member] | |
Measurement input | $ | 10,800 |
Measurement Input, Expected Term [Member] | Secured Debt [Member] | Minimum [Member] | |
Measurement input | yr | 0.5 |
Measurement Input, Expected Term [Member] | Secured Debt [Member] | Weighted Average [Member] | |
Measurement input | yr | 2.4 |
Measurement Input, Expected Term [Member] | Secured Debt [Member] | Maximum [Member] | |
Measurement input | yr | 3.3 |
Measurement Input, Expected Term [Member] | Unsecured Debt [Member] | Minimum [Member] | |
Measurement input | yr | 0.5 |
Measurement Input, Expected Term [Member] | Unsecured Debt [Member] | Weighted Average [Member] | |
Measurement input | yr | 1.6 |
Measurement Input, Expected Term [Member] | Unsecured Debt [Member] | Maximum [Member] | |
Measurement input | yr | 3.3 |
Estimated Probabilities [Member] | Secured Debt [Member] | Minimum [Member] | |
Measurement input | 0.05 |
Estimated Probabilities [Member] | Secured Debt [Member] | Weighted Average [Member] | |
Measurement input | 0.19 |
Estimated Probabilities [Member] | Secured Debt [Member] | Maximum [Member] | |
Measurement input | 0.35 |
Estimated Probabilities [Member] | Unsecured Debt [Member] | Minimum [Member] | |
Measurement input | 0.05 |
Estimated Probabilities [Member] | Unsecured Debt [Member] | Weighted Average [Member] | |
Measurement input | 0.21 |
Estimated Probabilities [Member] | Unsecured Debt [Member] | Maximum [Member] | |
Measurement input | 0.35 |
Note 12 - Legal Proceedings (De
Note 12 - Legal Proceedings (Details Textual) | 1 Months Ended | 12 Months Ended | 24 Months Ended | |||||||
Nov. 30, 2023 | Aug. 31, 2020 | May 31, 2020 | Jul. 31, 2017 | Dec. 31, 2015 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | |
Parkervision V. Apple and Qualcomm Middle District of Florida [Member] | ||||||||||
Gain Contingency, Patents Allegedly Infringed upon, Number | 1 | 4 | ||||||||
Parkervision V. LG Electronics [Member] | ||||||||||
Gain Contingency, Patents Allegedly Infringed upon, Number | 4 | |||||||||
Parkervision V. Intel Western District Of Texas [Member] | ||||||||||
Gain Contingency, Patents Allegedly Infringed upon, Number | 2 | 10 | ||||||||
Parkervision V. TCL Western District Of Texas [Member] | ||||||||||
Gain Contingency, Patents Allegedly Infringed upon, Number | 12 | |||||||||
Parkervision V. LGE Western District of Texas [Member] | ||||||||||
Gain Contingency, Patents Allegedly Infringed upon, Number | 10 | |||||||||
Parkervision V. Realtek Western District of Texas [Member] | ||||||||||
Gain Contingency, Patents Allegedly Infringed upon, Number | 7 | 2 | ||||||||
Parkervision V. Mediatek Western District Of Texas [Member] | ||||||||||
Gain Contingency, Patents Allegedly Infringed upon, Number | 1 | 10 | 3 | |||||||
Parkervision V. Texas Instruments Western District of Texas [Member] | ||||||||||
Gain Contingency, Patents Allegedly Infringed upon, Number | 3 | |||||||||
Parkervision V. NXP Semiconductors Western District of Texas [Member] | ||||||||||
Gain Contingency, Patents Allegedly Infringed upon, Number | 3 |
Note 13 - Stock Authorization_2
Note 13 - Stock Authorization and Issuance (Details Textual) | 3 Months Ended |
Mar. 31, 2024 USD ($) $ / shares shares | |
Stock Issued During Period, Shares, Issued for Services (in shares) | shares | 120,000 |
Stock Issued During Period, Value, New Issues | $ | $ 19,000 |
Class of Warrant or Right, Outstanding (in shares) | shares | 10,300,000 |
Class of Warrant or Right, Weighted Average Remaining Life (Year) | 1 year 3 months 18 days |
Weighted Average [Member] | |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | $ 0.75 |
Estimate of Fair Value Measurement [Member] | Additional Paid-in Capital [Member] | |
Warrants and Rights Outstanding | $ | $ 3,500,000 |
Note 14 - Share-based Compens_2
Note 14 - Share-based Compensation (Details Textual) - USD ($) $ in Millions | 3 Months Ended | |
Mar. 31, 2024 | Mar. 31, 2023 | |
Share-Based Payment Arrangement, Expense | $ 0.1 | $ 0.2 |
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount | $ 0.3 | |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) | 1 year |
Note 15 - Income Taxes (Details
Note 15 - Income Taxes (Details Textual) Pure in Thousands | 3 Months Ended |
Mar. 31, 2024 | |
Effective Income Tax Rate Reconciliation, Percent | 0% |
Note 16 - Related Party Trans_2
Note 16 - Related Party Transactions (Details Textual) - Convertible Debt [Member] - USD ($) | May 10, 2024 | Mar. 31, 2024 |
Lewis Titterton [Member] | ||
Debt Instrument, Interest Rate, Stated Percentage | 8% | |
Subsequent Event [Member] | Lewis Titterton [Member] | ||
Debt Instrument, Interest Rate, Stated Percentage | 5% | |
Subsequent Event [Member] | June 19, 2019 Note [Member] | Lewis Titterton [Member] | ||
Debt Instrument, Face Amount | $ 25,000 | |
Subsequent Event [Member] | September 13, 2019 Note [Member] | Lewis Titterton [Member] | ||
Debt Instrument, Face Amount | 50,000 | |
Subsequent Event [Member] | Amended Interest Payments [Member] | ||
Debt Instrument, Face Amount | 475,000 | |
Subsequent Event [Member] | January 8, 2020 Note [Member] | Lewis Titterton [Member] | ||
Debt Instrument, Face Amount | 50,000 | |
Subsequent Event [Member] | May 10, 2022 Note [Member] | Lewis Titterton [Member] | ||
Debt Instrument, Face Amount | 200,000 | |
Subsequent Event [Member] | May 10, 2022 Note [Member] | Paul Rosenbaum [Member] | ||
Debt Instrument, Face Amount | 100,000 | |
Subsequent Event [Member] | September 15, 2023 Note [Member] | Paul Rosenbaum [Member] | ||
Debt Instrument, Face Amount | 100,000 | |
Subsequent Event [Member] | August 3, 2022 Note [Member] | Sanford Litvack [Member] | ||
Debt Instrument, Face Amount | $ 25,000 |