ParkerVision (PRKR) 10-Q 15 Nov 21 2021 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Nov. 10, 2021
Document And Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Document Transition Report	false
Entity File Number	000-22904
Entity Registrant Name	PARKERVISION, INC.
Entity Central Index Key	0000914139
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	59-2971472
Entity Address, Address Line One	4446-1A Hendricks Avenue
Entity Address, Address Line Two	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 Shell Company	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		75,189,175
Amendment Flag	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 760	$ 1,627
Prepaid expenses	707	599
Other current assets	18	8
Total current assets	1,485	2,234
Operating lease right-of-use assets	8	10
Intangible assets, net	1,887	2,170
Property, equipment and other assets, net	21	42
Total assets	3,401	4,456
CURRENT LIABILITIES:
Accounts payable	589	4,318
Accrued expenses:
Salaries and wages	58	19
Professional fees	103	128
Statutory court costs		251
Other accrued expenses	483	936
Related party note payable, current portion	103	100
Secured note payable, current portion		26
Unsecured notes payable		65
Operating lease liabilities, current portion	164	146
Total current liabilities	1,500	5,989
LONG-TERM LIABILITES:
Secured contingent payment obligation	35,940	33,057
Convertible notes	3,015	3,018
Related party note payable, net of current portion	633	703
Unsecured contingent payment obligations	5,747	5,222
Operating lease liabilities, net of current portion	34	159
Other long-term liabilities	1	129
Total long-term liabilities	45,370	42,288
Total liabilities	46,870	48,277
SHAREHOLDERS' DEFICIT:
Common stock, $0.01 par value, 150,000 and 140,000 shares authorized, 74,743 and 58,591 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively	747	586
Additional paid-in capital	385,843	376,954
Accumulated deficit	(430,059)	(421,361)
Total shareholders' deficit	(43,469)	(43,821)
Total liabilities and shareholders' deficit	$ 3,401	$ 4,456

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Sep. 30, 2021	Dec. 31, 2020
Condensed Consolidated Balance Sheets [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	150,000	140,000
Common stock, shares issued	74,743	58,591
Common stock, shares outstanding	74,743	58,591

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Condensed Consolidated Statements Of Comprehensive Loss [Abstract]
Licensing revenue	$ 144		$ 144
Cost of sales	1		1
Gross margin	143		143
Selling, general and administrative expenses	2,024	1,445	6,152	9,268
Total operating expenses	2,024	1,445	6,152	9,268
Other income	19	1	213	1
Interest expense	(70)	(119)	(185)	(420)
Change in fair value of contingent payment obligations	(172)	(105)	(2,996)	(3,487)
Total interest and other	(223)	(223)	(2,968)	(3,906)
Net loss	(2,104)	(1,668)	(8,977)	(13,174)
Other comprehensive loss, net of tax
Comprehensive loss	$ (2,104)	$ (1,668)	$ (8,977)	$ (13,174)
Basic and diluted net loss per common share	$ (0.03)	$ (0.03)	$ (0.13)	$ (0.29)
Weighted average common shares outstanding	73,868	50,530	69,869	44,772

Condensed Consolidated Statem_2

Condensed Consolidated Statements Of Shareholders' Deficit - USD ($) $ in Thousands	Common Stock [Member]Short-term Debt [Member]	Common Stock [Member]Convertible Debt [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]Short-term Debt [Member]	Additional Paid-in Capital [Member]Convertible Debt [Member]	Additional Paid-in Capital [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Deficit [Member]	Total
Balance, value at Dec. 31, 2019			$ 341				$ 368,345		$ (401,783)	$ (33,097)
Issuance of common stock and warrants in private offerings, net of issuance costs and initial fair value of contingent payment rights			97				3,751
Issuance of common stock upon exercise of options and warrants			35				1,190
Issuance of common stock and warrants for services			7				257
Issuance of convertible debt with beneficial conversion feature							173
Issuance upon conversion	$ 22	$ 10		$ 318	$ 340
Share-based compensation, net of shares withheld for taxes			8				996
Comprehensive loss for the period									(13,174)	(13,174)
Balance, value at Sep. 30, 2020			520				375,370		(414,957)	(39,067)
Balance, value at Jun. 30, 2020			491				374,464		(413,289)	(38,334)
Issuance of common stock and warrants in private offerings, net of issuance costs and initial fair value of contingent payment rights			15				215
Issuance of common stock upon exercise of options and warrants			10				340
Issuance of common stock and warrants for services			1				25
Issuance upon conversion		2			87
Share-based compensation, net of shares withheld for taxes			1				239
Comprehensive loss for the period									(1,668)	(1,668)
Balance, value at Sep. 30, 2020			520				375,370		(414,957)	(39,067)
Balance, value at Dec. 31, 2020			586			$ (1,126)	376,954	$ 279	(421,361)	(43,821)
Issuance of common stock and warrants in private offerings, net of issuance costs and initial fair value of contingent payment rights			62				4,712
Issuance of common stock upon exercise of options and warrants			58				878
Issuance of common stock and warrants for services			9				829
Issuance upon conversion		30			1,029
Share-based compensation, net of shares withheld for taxes			2				2,567
Comprehensive loss for the period									(8,977)	(8,977)
Balance, value at Sep. 30, 2021			747				385,843		(430,059)	(43,469)
Balance, value at Jun. 30, 2021			727				384,279		(427,955)	(42,949)
Issuance of common stock upon exercise of options and warrants			6				108
Issuance of common stock and warrants for services			2				208
Issuance upon conversion		$ 12			$ 502
Share-based compensation, net of shares withheld for taxes							746
Comprehensive loss for the period									(2,104)	(2,104)
Balance, value at Sep. 30, 2021			$ 747				$ 385,843		$ (430,059)	$ (43,469)

Condensed Consolidated Statem_3

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (8,977)	$ (13,174)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	281	497
Share-based compensation	2,569	1,004
Noncash lease expense	2	60
Loss on changes in fair value of contingent payment obligations	2,996	3,487
Loss on disposal/impairment of equipment and intangible assets	25	413
Loan forgiveness	(194)
Noncash expense for amendment of equity-related agreements		2,211
Changes in operating assets and liabilities:
Prepaid expenses and other assets	624	192
Accounts payable and accrued expenses	(4,139)	1,302
Operating lease liabilities	(107)	(174)
Total adjustments	2,057	8,992
Net cash used in operating activities	(6,920)	(4,182)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(2)	(3)
Net cash used in investing activities	(2)	(3)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock, including contingent payment rights in private offerings	5,186	3,057
Net proceeds from exercise of options and warrants	936	1,225
Net proceeds from debt financings		1,244
Principal payments on long-term debt	(67)	(1,251)
Net cash provided by financing activities	6,055	4,275
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(867)	90
CASH AND CASH EQUIVALENTS, beginning of period	1,627	57
CASH AND CASH EQUIVALENTS, end of period	$ 760	$ 147

Description Of Business

Description Of Business	9 Months Ended
	Sep. 30, 2021
Description Of Business [Abstract]
Description Of Business	1. Description of Business ParkerVision, Inc. and its wholly-owned German subsidiary, ParkerVision GmbH (collectively “ParkerVision”, “we” or the “Company”), is in the business of innovating fundamental wireless technologies and products. We have designed and developed proprietary radio frequency (“RF”) technologies and integrated circuits and 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 infringement litigation and licensing efforts. We currently have patent enforcement actions ongoing in various U.S. district courts against providers of mobile handsets, smart televisions and other WiFi products and, in certain cases, their chip suppliers for the infringement of a number of our RF patents. We have made significant investments in developing and protecting our technologies.

Liquidity And Going Concern

Liquidity And Going Concern	9 Months Ended
	Sep. 30, 2021
Liquidity And Going Concern [Abstract]
Liquidity And Going Concern	2. Liquidity and Going Concern Our accompanying condensed consolidated financial statements were prepared assuming we would continue as a going concern, which contemplates that we will continue in operation for the foreseeable future and will be able to realize assets and settle liabilities and commitments in the normal course of business for a period of at least one year from the issuance date of these condensed consolidated financial statements. These condensed consolidated financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classification of liabilities that could result should we be unable to continue as a going concern. We have incurred significant losses from operations and negative cash flows from operations in every year since inception and have utilized the proceeds from the sales of debt and equity securities and contingent funding arrangements with third parties to fund our operations, including the cost of litigation. For the nine months ended September 30, 2021, we incurred a net loss of approximately $9.0 million and negative cash flows from operations of approximately $6.9 million. At September 30, 2021, we had cash and cash equivalents of approximately $0.8 million and an accumulated deficit of approximately $430.1 million. Additionally, a significant amount of future proceeds that we may receive from our patent enforcement and licensing programs will first be utilized to repay borrowings and legal fees and expenses under our contingent funding arrangements. These circumstances raise substantial doubt about our ability to continue to operate as a going concern for a period of one year following the issue date of these condensed consolidated financial statements. For the nine months ended September 30, 2021, we received aggregate net proceeds from debt and equity financings of approximately $5.2 million and proceeds from the exercise of outstanding options and warrants of approximately $0.9 million. We used a significant portion of these proceeds to pay current obligations resulting in a reduction in our accounts payable and accrued expenses of approximately $4.1 million for the nine months ended September 30, 2021. Our current capital resources are not sufficient to meet our short-term liquidity needs and we will be required to seek additional capital. Our ability to meet our liquidity needs for the next twelve months is dependent upon (i) our ability to successfully negotiate licensing agreements and/or settlements relating to the use of our technologies by others in excess of our contingent payment obligations, (ii) our ability to control operating costs, and/or (iii) our ability to obtain additional debt or equity financing, if needed. We expect that proceeds received by us from patent enforcement actions and technology licenses over the next twelve months may not be sufficient to cover our working capital requirements. We expect to continue to invest in the support of our patent enforcement and licensing programs. The long-term continuation of our business plan is dependent upon the generation of sufficient revenues from our technologies and/or products to offset expenses and contingent payment obligations. In the event that we do not generate sufficient revenues, we will be required to obtain additional funding through public or private debt or equity financing or contingent fee arrangements and/or reduce operating costs. Failure to generate sufficient revenues, raise additional capital through debt or equity financings or contingent fee arrangements, and/or reduce operating costs will have a material adverse effect on our ability to meet our long-term liquidity needs and achieve our intended long-term business objectives.

Basis Of Presentation

Basis Of Presentation	9 Months Ended
	Sep. 30, 2021
Basis Of Presentation [Abstract]
Basis Of Presentation	3. Basis of Presentation The accompanying unaudited condensed consolidated financial statements for the period ended September 30, 2021 were prepared in accordance with generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Operating results for the three and nine months ended September 30, 2021, are not necessarily indicative of the results that may be expected for the year ending December 31, 2021, or future years. All normal and recurring adjustments which, in the opinion of management, are necessary for a fair statement of the consolidated financial condition and results of operations have been included. The year-end condensed consolidated balance sheet data was derived from audited financial statements for the year ended December 31, 2020. Certain information and disclosures normally included in the notes to the annual financial statements prepared in accordance with GAAP have been omitted from these interim condensed consolidated financial statements. These interim condensed consolidated financial statements should be read in conjunction with our latest Annual Report on Form 10-K for the year ended December 31, 2020 (“2020 Annual Report”). 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.

Accounting Policies

Accounting Policies	9 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Accounting Policies	4. Accounting Policies There have been no changes in accounting policies from those stated in our 2020 Annual Report, other than as described below. We do not expect any newly effective accounting standards to have a material impact on our financial position, results of operations or cash flows when they become effective. We adopted Accounting Standards Update (“ASU”) 2020-06, “Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity” as of January 1, 2021. ASU 2020-06 simplifies accounting for convertible instruments, eliminating separation accounting for certain embedded conversion features. We used the modified retrospective method of adoption which allows for application of the guidance to transactions outstanding at the beginning of the fiscal year of adoption with the cumulative effect of the change being recorded as an adjustment to beginning retained earnings. Our adoption of ASU 2020-06 resulted in an increase to our long-term debt of approximately $0.8 million, a decrease in additional paid-in-capital of approximately $1.1 million, and an adjustment to our beginning accumulated deficit of $0.3 million resulting from the elimination of the previously recognized beneficial conversion feature as a debt discount.

Revenue

Revenue	9 Months Ended
	Sep. 30, 2021
Revenue [Abstract]
Revenue	5. Revenue We have an active monitoring and enforcement program with respect to our intellectual property rights that includes seeking appropriate compensation from third parties that utilize or have utilized our intellectual property without a license. As a result, we may receive payments as part of a settlement or in the form of court-awarded damages for a patent infringement dispute. We recognize such payments as revenue in accordance with Accounting Standards Codification (“ASC”) 606, “Revenue from Contracts with Customers.” During the three and nine months ended September 30, 2021, we recognized approximately $0.14 million in revenue from licensing and settlement agreements with third parties for their use of our technologies. Our performance obligations were satisfied, and therefore revenue recognized, upon receipt of proceeds and subsequent dismissal of all patent enforcement actions between the parties.

Loss Per Common Share

Loss Per Common Share	9 Months Ended
	Sep. 30, 2021
Loss Per Common Share [Abstract]
Loss Per Common Share	6. Loss per Common Share Basic loss 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 as all common share equivalents are excluded from the calculation, as their effect is anti-dilutive. We have shares underlying outstanding options, warrants, unvested restricted stock units (“RSUs”) and convertible notes that were excluded from the computation of diluted loss per share as their effect would have been anti-dilutive. These common share equivalents at September 30, 2021 and 2020 were as follows (in thousands): September 30, 2021 2020Options outstanding 23,724 12,248Warrants outstanding 9,819 13,850Unvested RSUs - 291Shares underlying convertible notes 20,757 23,807 54,300 50,196

Prepaid Expenses

Prepaid Expenses	9 Months Ended
	Sep. 30, 2021
Prepaid Expenses [Abstract]
Prepaid Expenses	7. Prepaid Expenses Prepaid expenses consist of the following (in thousands): September 30, December 31, 2021 2020Prepaid services $ 640 $ 408Prepaid bonds for German statutory costs - 142Prepaid insurance 32 21Prepaid licenses, software tools and support 19 11Other prepaid expenses 16 17 $ 707 $ 599    Prepaid services at September 30, 2021 and December 31, 2020 include approximately $0.6 million and $0.1 million, respectively of consulting services paid in shares of stock or warrants to purchase shares of stock in the future.

Intangible Assets

Intangible Assets	9 Months Ended
	Sep. 30, 2021
Intangible Assets [Abstract]
Intangible Assets	8. Intangible Assets Intangible assets consist of the following (in thousands): September 30, December 31, 2021 2020Patents and copyrights $ 14,826 $ 14,948Accumulated amortization (12,939) (12,778) $ 1,887 $ 2,170

Leases

Leases	9 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Leases	9. Leases During the nine months ended September 30, 2021, we entered into a sublease agreement related to our Lake Mary office space. The sublease is accounted for as an operating lease and is for the remaining term of our original lease, through November 2022. Rental income recognized of $0.02 million for the three and nine months ended September 30, 2021, is included in “Other income” in the accompanying condensed consolidated statements of comprehensive loss.

Debt

Debt	9 Months Ended
	Sep. 30, 2021
Debt [Abstract]
Debt	10. Debt Notes Payable Related Party Note PayableWe have an unsecured promissory note of approximately $0.7 million payable to Sterne, Kessler, Goldstein, & Fox, PLLC (“SKGF”), a related party, for outstanding unpaid fees for legal services. Subsequent to September 30, 2021, SKGF agreed to amend the note in order to extend the final balloon payment due under the note from April 2022 to April 2023. The SKGF note, as amended, will continue to accrue interest at a rate of 4% per annum, requires repayments of principal and interest at a rate of $10,000 per month and will extend the final balloon payment into April 2023. We are currently in compliance with all the terms of the note.  Secured Note PayableOur secured note payable as of December 31, 2020 represented default interest accrued related to a note payable to Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C (“Mintz”) for outstanding fees and expenses. Additionally, as of December 31, 2020, we had approximately $3.1 million in accounts payable to Mintz for outstanding fees and expenses.  We also had approximately $3.6 million in disputed legal fees and expenses billed by Mintz that we treated as a loss contingency that was not probable as of December 31, 2020 and accordingly, for which we recognized no expense in the consolidated financial statements.  On March 29, 2021, we entered into an agreement with Mintz to satisfy our outstanding obligations to Mintz.  Under the terms of the agreement, (i) Mintz waived all past defaults on the note resulting in a reversal of previously accrued interest, (ii) we paid Mintz a lump-sum payment of $3.0 million in satisfaction of all outstanding obligations including our accounts payable to Mintz and all disputed and unrecorded billings, and (iii) Mintz agreed to a significant reduction in future success fees that might be payable to Mintz from patent-related proceeds. Unsecured Notes PayableUnsecured notes payable at December 31, 2020 represented a Paycheck Protection Program loan of approximately $0.2 million received in May 2020. The loan was eligible for forgiveness provided that (i) we used the loan proceeds exclusively for allowed costs including payroll, employee group health benefits, rent and utilities and (ii) employee and compensation levels were maintained during the coverage period. We applied for loan forgiveness in April 2021 and the loan was forgiven in June 2021. The forgiveness of the loan was recognized as income and is included in “Other income” in the accompanying condensed consolidated statements of comprehensive loss for the three and nine months ended September 30, 2021. Convertible Notes Our convertible notes represent 5-year promissory notes that are convertible, at the holders’ option, into shares of our common stock at fixed conversion prices. Interest payments are made on a quarterly basis and are payable, at our option, subject to certain equity conditions, in either cash, shares of our common stock, or a combination thereof. To date, all interest payments on the convertible notes have been made in shares of our common stock. We have recognized the convertible notes as debt in our condensed consolidated financial statements. The fixed conversion prices of certain of the notes were below the market value of our common stock on the closing date resulting in the recognition of a beneficial conversion feature that was recorded as a discount on the convertible notes at the note inception date, with a corresponding increase to additional paid in capital. Upon our adoption of ASU 2020-06 on January 1, 2021, the beneficial conversion feature was eliminated, resulting in an increase of $0.8 million to convertible debt and a cumulative adjustment to beginning accumulated deficit of $0.3 million, representing the discount amortization recognized prior to adoption of the new standard (see Note 4). We have the option to prepay the majority of the notes, subject to a premium on the outstanding principal prepayment amount of 25% prior to the two-year anniversary of the note issuance date, 20% prior to the three-year anniversary of the note issuance date, 15% prior to the four-year anniversary of the note issuance date, or 10% thereafter.  The notes provide for events of default that include failure to pay principal or interest when due, breach of any of the representations, warranties, covenants or agreements made by us, events of liquidation or bankruptcy, and a change in control.  In the event of default, the interest rate increases to 12% per annum and the outstanding principal balance of the notes plus all accrued interest due may be declared immediately payable by the holders of a majority of the then outstanding principal balance of the notes. Convertible notes payable at September 30, 2021 and December 31, 2020 consist of the following (in thousands): Fixed Principal Outstanding as of Conversion Interest September 30, December 31,Description Rate Rate Maturity Date 2021 2020Convertible notes dated September 10, 2018 $0.40 8.0% September 7, 2023 $ 200 $ 600Convertible note dated September 19, 2018 $0.57 8.0% September 19, 2023 425 425Convertible notes dated February/March 2019 $0.25 8.0% February 28, 2024 to March 13, 2024 850 1,300Convertible notes dated June/July 2019 $0.10 8.0% June 7, 2024 to July 15, 2024 340 340Convertible notes dated July 18, 2019 $0.08 7.5% July 18, 2024 700 700Convertible notes dated September 13, 2019 $0.10 8.0% September 13, 2024 50 50Convertible notes dated January 8, 2020 $0.13 8.0% January 8, 2025 450 450Total principal balance 3,015 3,865Less Unamortized discount - 847 $ 3,015 $ 3,018 For the nine months ended September 30, 2021, convertible notes with a face value of $0.85 million were converted, at the option of the holders, into 2,800,000 shares of our common stock and we recognized interest expense of approximately $0.2 million related to the contractual interest which we elected to pay in shares of our common stock. For the nine months ended September 30, 2021, we issued approximately 215,000 shares of our common stock as interest-in-kind payments on our convertible notes. At September 30, 2021, we estimate our convertible notes have an aggregate fair value of approximately $2.4 million and would be categorized within Level 2 of the fair value hierarchy. Secured Contingent Payment Obligation The following table provides a reconciliation of our secured contingent payment obligation, measured at estimated fair market value, for the nine months ended September 30, 2021 and the year ended December 31, 2020 (in thousands): Nine Months EndedSeptember 30, 2021 Year EndedDecember 31, 2020Secured contingent payment obligation, beginning of period $ 33,057 $ 26,651Change in fair value 2,883 6,406Secured contingent payment obligation, end of period $ 35,940 $ 33,057 Our secured contingent payment obligation represents the estimated fair value of our repayment obligation to Brickell Key Investments, LP (“Brickell”) under a February 2016 funding agreement, as amended. Brickell is entitled to priority payments of 55% to 100% of proceeds received from all patent-related actions until such time that Brickell has been repaid its minimum return. The minimum return is determined as a multiple of the funded amount that increases over time. The estimated minimum return due to Brickell was approximately $47.2 million and $42.0 million as of September 30, 2021 and December 31, 2020, respectively. In addition, Brickell is entitled to a pro rata portion of proceeds from specified legal actions to the extent aggregate proceeds from those actions exceed the minimum return. The range of potential proceeds payable to Brickell is discussed more fully in Note 11. As of September 30, 2021, we are in compliance with our obligations under this agreement. 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 secured contingent payment obligation is remeasured to fair value at each reporting period with changes recorded in the condensed consolidated statements of comprehensive loss until the contingency is resolved. Unsecured Contingent Payment Obligations The following table provides a reconciliation of our unsecured contingent payment obligations, measured at estimated fair market value, for the nine months ended September 30, 2021 and the year ended December 31, 2020 (in thousands): Nine Months EndedSeptember 30, 2021 Year Ended‎December 31, 2020Unsecured contingent payment obligations, beginning of period $ 5,222 $ -Reclassification of other liabilities - 1,003Issuance of contingent payment rights 412 2,258Change in fair value 113 1,961Unsecured contingent payment obligations, end of period $ 5,747 $ 5,222 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). During the nine months ended September 30, 2021, we received proceeds of $1.0 million from the sale of common stock with CPRs, of which approximately $0.4 million was allocated to the CPRs. Our aggregate maximum obligation under the unsecured contingent payment obligations is $10.8 million as of September 30, 2021.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2021
Fair Value Measurements [Abstract]
Fair Value Measurements	11. Fair Value Measurements The following tables summarize the fair value of our assets and liabilities measured at fair value on a recurring basis as of September 30, 2021 and December 31, 2020 (in thousands): Fair Value Measurements Total Fair Value Quoted‎Prices‎in Active‎Markets‎(Level 1) Significant‎Other‎Observable‎Inputs‎(Level 2) Significant‎Unobservable‎Inputs‎(Level 3)September 30, 2021: Liabilities: Secured contingent payment obligation $ 35,940 $ - $ - $ 35,940Unsecured contingent payment obligations 5,747 - - 5,747   Fair Value Measurements Total Fair Value Quoted‎Prices‎in Active‎Markets‎(Level 1) Significant‎Other‎Observable‎Inputs‎(Level 2) Significant‎Unobservable‎Inputs‎(Level 3)December 31, 2020: Liabilities: Secured contingent payment obligation $ 33,057 $ - $ - $ 33,057Unsecured contingent payment obligations $ 5,222 $ - $ - $ 5,222 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 of 14.41% at September 30, 2021, based on a risk-free rate of 0.41% as adjusted by 8% for credit risk and 6% for litigation inherent risk. ‎ 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 September 30, 2021, including the lowest and highest undiscounted payout scenarios as well as a weighted average payout scenario based on relative undiscounted fair value of each cash flow scenario. Secured Contingent Payment Obligation Unsecured Contingent Payment ObligationsUnobservable Inputs Low Weighted Average High Low Weighted Average High Estimated undiscounted cash outflows (in millions) $0.0 $50.2 $76.8 $0.0 $8.1 $10.8Duration (in years) 0.3 2.5 3.3 1.3 2.5 3.3Estimated probabilities 0% 21% 25% 25% 25% 25% 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 inputs could result in a significantly higher or lower fair value measurement.

Legal Proceedings

Legal Proceedings	9 Months Ended
	Sep. 30, 2021
Legal Proceedings [Abstract]
Legal Proceedings	12. Legal Proceedings 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, including proceedings at the Patent Trial and Appeal Board of the U.S. Patent and Trademark Office (“PTAB”). 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-party litigation financing. In general, litigation counsel is entitled to recoup on a priority basis, from litigation proceeds, any out-of-pocket expenses incurred. Following reimbursement of out-of-pocket expenses, litigation counsel is generally entitled to a percentage of remaining proceeds based on the terms of the specific arrangement between us, counsel and our third-party litigation funder. We were liable for costs assessed on infringement and validity cases in Germany in which we did not prevail. A portion of this liability was covered by bonds posted in Germany. As of September 30, 2021, our bonds have been fully released and all outstanding statutory court costs have been satisfied in full. We have no remaining litigation or related liabilities in Germany. ParkerVision v. Qualcomm (Middle District of Florida)We have a patent infringement complaint pending in the Middle District of Florida against Qualcomm Incorporated and Qualcomm Atheros, Inc. (collectively “Qualcomm”) seeking approximately $1.3 billion in damages for infringement of four of our patents (the “Qualcomm Action”).  HTC Corporation and HTC America, Inc. (collectively “HTC”) were also defendants in this case but we voluntarily dismissed our claims against HTC and HTC dismissed their related counter-claims against us in October 2020.  Qualcomm has pending counterclaims against us for non-infringement and invalidity for all patents in the case.  The case was filed in May 2014 and stayed in February 2016 pending decisions in other cases, including the appeal of a PTAB proceeding with regard to U.S. patent 6,091,940 (“the ‘940 Patent”) asserted in this case.  In March 2017, the PTAB ruled in our favor on three of the six petitions (the method claims), ruled in Qualcomm’s favor on two of the six petitions (the apparatus claims) and issued a split decision on the claims covered in the sixth petition.  In September 2018, the Federal Circuit upheld the PTAB’s decision with regard to the ‘940 Patent and, in January 2019, the court lifted the stay in this case.  In July 2019, the court issued an order that granted our proposed selection of patent claims from four asserted patents, including the ‘940 Patent, and denied Qualcomm’s request to limit the claims and patents. The court also agreed that we may elect to pursue accused products that were at issue at the time the case was stayed, as well as new products that were released by Qualcomm during the pendency of the stay.  In September 2019, Qualcomm filed a motion for partial summary judgement in an attempt to exclude certain patents from the case, including the ‘940 Patent.  The court denied this motion in January 2020.  In April 2020, the court issued its claim construction order in which the court adopted our proposed construction for seven of the ten disputed terms and adopted slightly modified versions of our proposed construction for the remaining terms.  Due to the impact of COVID-19, a number of the scheduled deadlines in this case were moved including the trial commencement date which was rescheduled from December 2020 to May 2021.  We are seeking $1.3 billion in royalties owed to us by Qualcomm for its unauthorized use of our technology, based on a report submitted by our damages expert in this case in October 2020.  Such amount excludes additional amounts requested by us for interest and enhanced damages for willful infringement.  Ultimately, the amount of damages, if any, will be determined by a jury and the court.  Discovery was expected to close in December 2020; however, the court allowed us to designate a substitute expert due to medical issues with one of our experts in the case.  Accordingly, the close of discovery was delayed approximately one month until January 2021.  As a result of these delays, the court rescheduled the trial commencement date from May 3, 2021 to July 6, 2021.  In March 2021, the court further delayed the trial date citing backlog due to the pandemic, among other factors.  A new trial date has not yet been set although the court indicated the case was unlikely to be tried before November or December 2021.  Fact and expert discovery in this case are closed, expert reports have been submitted, and summary judgement and Daubert briefings have been completed by the parties.  Joint pre-trial statements were submitted in May 2021. In March 2021, the court granted Qualcomm’s motion to strike certain of our 2020 infringement contentions.  We filed a motion to clarify the court’s order and in July 2021, based on the court’s response to our motion to clarify, we filed a joint motion for entry of a judgement of non-infringement of our Patent No. 7,865,177 (“the ‘177 Patent”), subject to appeal.  A number of outstanding motions are pending decisions by the court.  ParkerVision v. Apple and Qualcomm (Middle District of Florida)In December 2015, we filed a patent infringement complaint in the Middle District of Florida against Apple Inc. (“Apple”), LG Electronics, Inc., LG Electronics U.S.A., Inc. and LG Electronics MobileComm U.S.A., Inc. (collectively “LG”), Samsung Electronics Co. Ltd., Samsung Electronics America, Inc., Samsung Telecommunications America LLC, and Samsung Semiconductor, Inc. (collectively “Samsung”), and Qualcomm alleging infringement of four of our patents. In February 2016, the district court proceedings were stayed pending resolution of a corresponding case filed at the International Trade Commission (“ITC”). In July 2016, we entered into a patent license and settlement agreement with Samsung and, as a result, Samsung was dismissed from the district court action. In March 2017, we filed a motion to terminate the ITC proceedings and a corresponding motion to lift the stay in the district court case. This motion was granted in May 2017. In July 2017, we filed a motion to dismiss LG from the district court case and re-filed our claims against LG in the District of New Jersey (see ParkerVision v. LG below).  Also in July 2017, Qualcomm filed a motion to change venue to the Southern District of California, and Apple filed a motion to dismiss for improper venue. In March 2018, the district court ruled against the Qualcomm and Apple motions. The parties also filed a joint motion in March 2018 to eliminate three of the four patents in the case in order to expedite proceedings leaving our U.S. patent 9,118,528 as the only remaining patent in this case. A claim construction hearing was held on August 31, 2018. In July 2019, the court issued its claim construction order in which the court adopted our proposed claim construction for two of the six terms and the “plain and ordinary meaning” on the remaining terms. In addition, the court denied a motion filed by Apple for summary judgment.  Fact discovery has closed in this case and a jury trial was scheduled to begin in August 2020.  In March 2020, as a result of the impact of COVID-19, the parties filed a motion requesting an extension of certain deadlines in the case.  In April 2020, the court stayed this proceeding pending the outcome of the Qualcomm Action.   ParkerVision v. LG (District of New Jersey)In July 2017, we filed a patent infringement complaint in the District of New Jersey against LG for the alleged infringement of the same four patents previously asserted against LG in Florida (see ParkerVision v. Apple and Qualcomm above). We elected to dismiss the case in Florida and re-file in New Jersey as a result of a Supreme Court ruling regarding proper venue. In March 2018, the court stayed this case pending a final decision in ParkerVision v. Apple and Qualcomm in the Middle District of Florida. As part of this stay, LG has agreed to be bound by the final claim construction decision in that case. ParkerVision v. Intel (Western District of Texas)In February 2020, we filed a patent infringement complaint in the Western District of Texas against Intel Corporation (“Intel”) alleging infringement of eight of our patents. The complaint was amended in May 2020 to add two additional patents. In June 2020, we requested that one of the patents be dropped from this case and filed a second case in the Western District of Texas that included this dismissed patent (see ParkerVision v. Intel II below). Intel’s response to our complaint was filed in June 2020 denying infringement and claiming invalidity of the patents. Intel has also filed a motion to transfer venue which was denied by the court. The court issued its claim construction ruling in January 2021 in which the majority of the claims were decided in our favor. The case was scheduled for trial beginning February 7, 2022. In April 2021, we filed an amended complaint to include additional Intel chips and products, including Wi-Fi devices to the complaint. The court suggested that, given the number of patents at issue, the case would be separated into two trials and, as a result of the added products, the first trial date will be scheduled in June 2022. Based on discussions with the court, we anticipate the second trial date will be scheduled to begin several months following the first trial. ParkerVision v. Intel II (Western District of Texas)In June 2020, to reduce the number of claims in ParkerVision v. Intel, we filed a second patent infringement complaint in the Western District of Texas against Intel that included one patent that we voluntarily dismissed from the original case. In July 2020, we amended our complaint adding two more patents to the case. In May 2021, we further amended our complaint to include additional Intel chips and products, including Wi-Fi devices. Two claim construction hearings were held and in July 2021, the court issued its claim construction order in which the majority of the claim terms were construed in our favor. Based on communications with the Court, the parties submitted a case schedule setting forth a final pretrial conference for October 2022, however this date may change dependent upon the timing of the second trial in the Intel I case discussed above. Intel v. ParkerVision (PTAB)Intel filed petitions for Inter Partes Review (“IPR”) against U.S. patent 7,539,474 (“the ‘474 Patent”), U.S. patent 7,110,444 (“the ‘444 Patent”) and U.S. patent 8,190,108 (“the ‘108 Patent”), all of which are patents asserted in our infringement cases against Intel. In January 2021, the PTAB issued its decision to institute IPR proceedings for the ‘444 Patent and the ‘474 Patent. An oral hearing was held on November 1, 2021 and final decisions from the PTAB on the ‘474 Patent and the ‘444 Patent are expected by late January 2022. In July 2021, the PTAB issued its decision to institute IPR proceedings for the ‘108 Patent. We filed our response to this petition in October 2021 and an oral hearing is scheduled for April 2022. A final decision from the PTAB with respect to the ‘108 Patent is expected by July 2022. Additional Patent Infringement CasesParkerVision filed a number of additional patent cases in the Western District of Texas in September and October 2020 including cases against (i) TCL Industries Holdings Co., Ltd, a Chinese company, TCL Electronics Holdings Ltd., Shenzhen TCL New Technology Co., Ltd, TCL King Electrical Appliances (Huizhou) Co., Ltd., TCL Moka Int’l Ltd. and TCL Moka Manufacturing S.A. DE C.V. (collectively “TCL”), (ii) Hisense Co., Ltd. and Hisense Visual Technology Co., Ltd (collectively “Hisense”), a Chinese company, (iii) Buffalo Inc., a Japanese company (“Buffalo”) and (iv) Zyxel Communications Corporation, a Chinese multinational electronics company headquartered in Taiwan, (“Zyxel”).  Each case alleges infringement of the same ten patents by products that incorporate modules containing certain Wi-Fi chips manufactured by Realtek and/or MediaTek.  Each of the defendants have filed responses denying infringement and claiming invalidity of the patents, among other defenses. In September 2021, we dismissed the cases against Buffalo and Zyxel following satisfaction of the parties’ obligations under settlement and license agreements entered into in May 2021 and September 2021, respectively. The court held a Markman hearing on October 27, 2021 for the remaining defendants, Hisense and TCL, and issued its claim construction recommendations on October 29, 2021, in which nearly all of the claim terms were decided in our favor. The Hisense and TCL cases are expected to have a trial date in December 2022.   In May 2021, we also filed a patent infringement case against LG Electronics, a South Korean company, in the Western District of Texas alleging infringement of the same ten patents. TCL, et. al. v. ParkerVision (PTAB)In May 2021, TCL, along with Hisense, filed petitions for Inter Partes Review (“IPR”) against U.S. patent 7,292,835 (“the ‘835 Patent”) and the ‘444 Patent, both of which are asserted in the infringement cases against these parties in the Western District of Texas. An institution decision is expected from the PTAB in late November 2021.

Stock Authorization and Issuanc

Stock Authorization and Issuance	9 Months Ended
	Sep. 30, 2021
Stock Authorization and Issuance [Abstract]
Stock Authorization and Issuance	13. Stock Authorization and Issuance Stock Authorization On September 28, 2021, our shareholders approved an amendment to our amended and restated articles of incorporation to increase our authorized common shares from 140 million to 150 million. Stock and Warrant Issuances – Equity Based Financings Private Placements with Accredited InvestorsIn January 2021, we entered into securities purchase agreements with accredited investors for the sale of an aggregate of 2,976,430 shares of our common stock at a price of $0.35 per share for aggregate proceeds of $1.0 million. The securities purchase agreements include CPRs. Approximately $0.4 million of the proceeds were allocated to unsecured contingent payment obligations based on the initial fair value estimate of the CPRs (see Note 10). The shares were registered for resale on a registration statement that was declared effective on April 26, 2021 (File No. 333-255217). In March 2021, we entered into securities purchase agreements with accredited investors for the sale of 3,230,942 shares of our common stock and 1,619,289 warrants at a price of $1.29 per common share for aggregate proceeds of approximately $4.2 million. The warrants have an exercise price of $1.75 per share and expire in March 2026. The shares, including the shares underlying the warrants, were registered for resale on a registration statement that was declared effective on April 26, 2021 (File No. 333-255217). We used $3.0 million of the proceeds from this transaction to satisfy our obligations to Mintz (see Note 10). Stock Issuances – Payment for Services In January 2021, we amended our business consulting and retention agreement with Chelsea Investor Relations to increase the compensation for services over the remaining term and to extend the term of the agreement through February 2024.  As consideration for the amended agreement, we issued 500,000 shares of unregistered common stock in exchange for a nonrefundable retainer for services valued at approximately $0.33 million.  The value of the stock issued is being recognized as consulting expense over the term of the agreement. The shares were registered for resale on a registration statement that was declared effective on April 26, 2021 (File No. 333-255217). In January 2021, we also issued 50,000 shares of our unregistered common stock, valued at approximately $0.03 million, as compensation for three months of shareholder awareness services provided by a third party.  In April 2021, we issued this third party an additional 50,000 shares of our unregistered common stock, valued at approximately $0.07 million as compensation for services over the remaining term of the agreement. In June 2021, we issued an additional 100,000 shares of our unregistered common stock, valued at approximately $0.12 million, to this same third-party as a retainer for services over a one-year term through May 31, 2022. The value of the shares issued will be recognized as consulting expense over the term of the agreement. In April 2021, we issued 35,000 shares of our unregistered common stock to a consultant for services over a six-month term valued at approximately $0.04 million. The value of the shares issued will be recognized as consulting expense over the term of the agreement.   In addition, from time to time, we issue restricted stock awards under our approved equity plans to third party consultants as share-based compensation. See “Non-Employee Compensation” in Note 14. Common Stock Warrants As of September 30, 2021, we had outstanding warrants for the purchase of up to 9.8 million shares of our common stock. The estimated grant date fair value of these warrants of $2.8 million is included in additional paid-in capital in our condensed consolidated balance sheets. As of September 30, 2021, our outstanding warrants have an average exercise price of $0.73 per share and a weighted average remaining life of approximately 3.2 years.

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2021
Share-Based Compensation [Abstract]
Share-Based Compensation	14. Share-Based Compensation There has been no material change in the assumptions used to compute the fair value of our equity awards, nor in the method used to account for share-based compensation from those stated in our 2020 Annual Report. For the three and nine months ended September 30, 2021, we recognized share-based compensation expense of approximately $0.75 million and $2.57 million, respectively. Share-based compensation is included in selling, general and administrative expenses in the accompanying condensed, consolidated statements of comprehensive loss. As of September 30, 2021, there was $3.7 million of total unrecognized compensation cost related to all non-vested share-based compensation awards. The cost is expected to be recognized over a weighted-average remaining life of approximately 1.25 years. During the nine months ended September 30, 2021, our board of directors (“Board”) amended our 2019 Long-Term Incentive Plan (“the 2019 Plan”) to increase the number of shares of common stock reserved for issuance under the 2019 Plan from 12 million to 27 million shares. The Board also approved awards under the 2019 Plan of 11.9 million nonqualified stock options to executives and other key employees and an aggregate of 1.1 million nonqualified stock options to non-employee directors. The options are exercisable at $0.54 per share, vest in eight equal quarterly installments commencing March 31, 2021, and expire on January 11, 2026. Non-Employee CompensationOn March 9, 2021, we granted approximately 32,000 shares under our 2019 Plan to a consultant for business communications services over a 1-year term valued at approximately $0.05 million. On August 10, 2021, we granted 150,000 shares under our 2019 Plan to a consultant for services over a 1-year term valued at approximately $0.2 million. The value of the shares issued will be recognized as consulting expense over the terms of the agreements.

Loss Per Common Share (Tables)

Loss Per Common Share (Tables)	9 Months Ended
	Sep. 30, 2021
Loss Per Common Share [Abstract]
Summary Of Anti-Dilutive Shares	September 30, 2021 2020Options outstanding 23,724 12,248Warrants outstanding 9,819 13,850Unvested RSUs - 291Shares underlying convertible notes 20,757 23,807 54,300 50,196

Prepaid Expenses (Tables)

Prepaid Expenses (Tables)	9 Months Ended
	Sep. 30, 2021
Prepaid Expenses [Abstract]
Schedule Of Prepaid Expenses	September 30, December 31, 2021 2020Prepaid services $ 640 $ 408Prepaid bonds for German statutory costs - 142Prepaid insurance 32 21Prepaid licenses, software tools and support 19 11Other prepaid expenses 16 17 $ 707 $ 599

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2021
Intangible Assets [Abstract]
Schedule Of Intangible Assets	September 30, December 31, 2021 2020Patents and copyrights $ 14,826 $ 14,948Accumulated amortization (12,939) (12,778) $ 1,887 $ 2,170

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2021
Debt Instrument [Line Items]
Schedule Of Convertible Notes Payable	Fixed Principal Outstanding as of Conversion Interest September 30, December 31,Description Rate Rate Maturity Date 2021 2020Convertible notes dated September 10, 2018 $0.40 8.0% September 7, 2023 $ 200 $ 600Convertible note dated September 19, 2018 $0.57 8.0% September 19, 2023 425 425Convertible notes dated February/March 2019 $0.25 8.0% February 28, 2024 to March 13, 2024 850 1,300Convertible notes dated June/July 2019 $0.10 8.0% June 7, 2024 to July 15, 2024 340 340Convertible notes dated July 18, 2019 $0.08 7.5% July 18, 2024 700 700Convertible notes dated September 13, 2019 $0.10 8.0% September 13, 2024 50 50Convertible notes dated January 8, 2020 $0.13 8.0% January 8, 2025 450 450Total principal balance 3,015 3,865Less Unamortized discount - 847 $ 3,015 $ 3,018
Secured Debt [Member]
Debt Instrument [Line Items]
Reconciliation Of Secured And Unsecured Contingent Obligation At Fair Value	Nine Months EndedSeptember 30, 2021 Year EndedDecember 31, 2020Secured contingent payment obligation, beginning of period $ 33,057 $ 26,651Change in fair value 2,883 6,406Secured contingent payment obligation, end of period $ 35,940 $ 33,057
Unsecured Debt [Member]
Debt Instrument [Line Items]
Reconciliation Of Secured And Unsecured Contingent Obligation At Fair Value	Nine Months EndedSeptember 30, 2021 Year Ended‎December 31, 2020Unsecured contingent payment obligations, beginning of period $ 5,222 $ -Reclassification of other liabilities - 1,003Issuance of contingent payment rights 412 2,258Change in fair value 113 1,961Unsecured contingent payment obligations, end of period $ 5,747 $ 5,222

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2021
Fair Value Measurements [Abstract]
Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis	Fair Value Measurements Total Fair Value Quoted‎Prices‎in Active‎Markets‎(Level 1) Significant‎Other‎Observable‎Inputs‎(Level 2) Significant‎Unobservable‎Inputs‎(Level 3)September 30, 2021: Liabilities: Secured contingent payment obligation $ 35,940 $ - $ - $ 35,940Unsecured contingent payment obligations 5,747 - - 5,747   Fair Value Measurements Total Fair Value Quoted‎Prices‎in Active‎Markets‎(Level 1) Significant‎Other‎Observable‎Inputs‎(Level 2) Significant‎Unobservable‎Inputs‎(Level 3)December 31, 2020: Liabilities: Secured contingent payment obligation $ 33,057 $ - $ - $ 33,057Unsecured contingent payment obligations $ 5,222 $ - $ - $ 5,222
Quantitative Information	Secured Contingent Payment Obligation Unsecured Contingent Payment ObligationsUnobservable Inputs Low Weighted Average High Low Weighted Average High Estimated undiscounted cash outflows (in millions) $0.0 $50.2 $76.8 $0.0 $8.1 $10.8Duration (in years) 0.3 2.5 3.3 1.3 2.5 3.3Estimated probabilities 0% 21% 25% 25% 25% 25%

Liquidity And Going Concern (De

Liquidity And Going Concern (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Liquidity And Going Concern [Abstract]
Net loss	$ (2,104)	$ (1,668)	$ (8,977)	$ (13,174)
Net cash used in operating activities			(6,920)	(4,182)
Accumulated deficit	(430,059)		(430,059)		$ (421,361)
Cash and cash equivalents	$ 760		760		$ 1,627
Repayments			67	$ 1,251
Proceeds from sale of debt and equity securities			5,200
Repayment of debt and accrued expenses			4,100
Net Proceeds			$ 900

Accounting Policies (Details)

Accounting Policies (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Significant Accounting Policies [Line Items]
Accumulated deficit	$ (430,059)		$ (421,361)
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	$ 67	$ 1,251
Accounting Standards Update 2020-06 [Member]
Significant Accounting Policies [Line Items]
Long-term Debt			800
Accumulated deficit			(300)
Additional Paid in Capital			$ (1,100)

Revenue (Details)

Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021
Revenue [Abstract]
Contract with Customer, Liability, Revenue Recognized	$ 140	$ 140

Loss Per Common Share (Details)

Loss Per Common Share (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the computation of diluted loss per share	54,300	50,196
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the computation of diluted loss per share	23,724	12,248
Warrants Outstanding [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the computation of diluted loss per share	9,819	13,850
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the computation of diluted loss per share		291
Convertible Debt Securities [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the computation of diluted loss per share	20,757	23,807

Prepaid Expenses (Narrative) (D

Prepaid Expenses (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Prepaid Expenses [Abstract]
Consulting services	$ 0.6	$ 0.1

Prepaid Expenses (Schedule Of P

Prepaid Expenses (Schedule Of Prepaid Expenses) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Prepaid Expenses [Abstract]
Prepaid services	$ 640	$ 408
Prepaid bonds for German statutory costs		142
Prepaid insurance	32	21
Prepaid licenses, software tools and support	19	11
Other prepaid expenses	16	17
Prepaid expenses	$ 707	$ 599

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Intangible Assets [Abstract]
Patents and copyrights	$ 14,826	$ 14,948
Accumulated amortization	(12,939)	(12,778)
Total	$ 1,887	$ 2,170

Leases (Details)

Leases (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021USD ($)
Leases [Abstract]
Operating Lease, Lease Income, Lease Payments	$ 20

Debt (Narrative) (Details)

Debt (Narrative) (Details)	Mar. 29, 2021USD ($)	Mar. 31, 2021USD ($)	May 31, 2020USD ($)	Sep. 30, 2021USD ($)itemshares	Dec. 31, 2020USD ($)
Debt Instrument [Line Items]
Contingent Payment Obligation, Minimum Return				$ 47,200,000	$ 42,000,000
Contingent Payment Obligation, Maximum Obligation				$ 10,800,000
Mintz [Member]
Debt Instrument [Line Items]
Repayments of Debt		$ 3,000,000
Secured Debt [Member] | Mintz [Member]
Debt Instrument [Line Items]
Repayments of Debt	$ 3,000,000
Notes payable					3,100,000
Unpaid fees and expenses					3,600,000
Convertible Debt [Member]
Debt Instrument [Line Items]
Interest rate				12.00%
Interest expense				$ 200,000
Outstanding principal converted				$ 850,000
Shares issued | shares				2,800,000
Aggregate common stock | item				215,000
Debt, term				5 years
Convertible Debt [Member] | Debt Instrument, Redemption, Period One [Member]
Debt Instrument [Line Items]
Principal prepayment				25.00%
Convertible Debt [Member] | Debt Instrument, Redemption, Period Two [Member]
Debt Instrument [Line Items]
Principal prepayment				20.00%
Convertible Debt [Member] | Debt Instrument, Redemption, Period Three [Member]
Debt Instrument [Line Items]
Principal prepayment				15.00%
Convertible Debt [Member] | Debt Instrument, Redemption, Period Four [Member]
Debt Instrument [Line Items]
Principal prepayment				10.00%
Promissory Notes [Member] | Unsecured Debt [Member] | Sterne, Kessler, Goldstein & Fox, PLLC [Member]
Debt Instrument [Line Items]
Debt				$ 700,000
Interest rate				4.00%
Debt payment per month				$ 10,000
Paycheck Protection Program Loan [Member]
Debt Instrument [Line Items]
Proceeds from debt			$ 200,000
Contingent Payment Rights [Member]
Debt Instrument [Line Items]
Common stock issued				1,000,000
Proceeds from debt				$ 400,000
Minimum [Member] | Contingent Payment Obligation [Member]
Debt Instrument [Line Items]
Percentage of proceeds payment				55.00%
Maximum [Member] | Contingent Payment Obligation [Member]
Debt Instrument [Line Items]
Percentage of proceeds payment				100.00%
Cumulative Effect, Period of Adoption, Adjustment [Member] | Convertible Debt [Member]
Debt Instrument [Line Items]
Beneficial conversion feature					800,000
Amortization					$ 300,000
Significant Other Observable Inputs (Level 2) [Member] | Convertible Debt [Member]
Debt Instrument [Line Items]
Fair value of note payable				$ 2,400,000

Debt (Schedule Of Convertible N

Debt (Schedule Of Convertible Notes Payable) (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Convertible notes, net	$ 3,015	$ 3,018
Convertible Debt [Member]
Debt Instrument [Line Items]
Total principal balance	3,015	3,865
Less Unamortized discount		847
Convertible notes, net	$ 3,015	3,018
Convertible Debt [Member] | Convertible Notes Dated September 10, 2018 [Member]
Debt Instrument [Line Items]
Fixed Conversion Rate	$ 0.40
Effective Interest Rate	8.00%
Maturity Date	Sep. 7, 2023
Total principal balance	$ 200	600
Convertible Debt [Member] | Convertible Note Dated September 19, 2018 [Member]
Debt Instrument [Line Items]
Fixed Conversion Rate	$ 0.57
Effective Interest Rate	8.00%
Maturity Date	Sep. 19, 2023
Total principal balance	$ 425	425
Convertible Debt [Member] | Convertible Notes Dated February/March 2019 [Member]
Debt Instrument [Line Items]
Fixed Conversion Rate	$ 0.25
Effective Interest Rate	8.00%
Total principal balance	$ 850	1,300
Convertible Debt [Member] | Convertible Note Dated June/July 2019 [Member]
Debt Instrument [Line Items]
Fixed Conversion Rate	$ 0.10
Effective Interest Rate	8.00%
Total principal balance	$ 340	340
Convertible Debt [Member] | Convertible Note Dated July 18, 2019 [Member]
Debt Instrument [Line Items]
Fixed Conversion Rate	$ 0.08
Effective Interest Rate	7.50%
Maturity Date	Jul. 18, 2024
Total principal balance	$ 700	700
Convertible Debt [Member] | Convertible Note Dated September 13, 2019 [Member]
Debt Instrument [Line Items]
Fixed Conversion Rate	$ 0.10
Effective Interest Rate	8.00%
Maturity Date	Sep. 13, 2024
Total principal balance	$ 50	50
Convertible Debt [Member] | Convertible Notes Dated January 8, 2020 [Member]
Debt Instrument [Line Items]
Fixed Conversion Rate	$ 0.13
Effective Interest Rate	8.00%
Maturity Date	Jan. 8, 2025
Total principal balance	$ 450	$ 450
Minimum [Member] | Convertible Debt [Member] | Convertible Notes Dated February/March 2019 [Member]
Debt Instrument [Line Items]
Maturity Date	Feb. 28, 2024
Minimum [Member] | Convertible Debt [Member] | Convertible Note Dated June/July 2019 [Member]
Debt Instrument [Line Items]
Maturity Date	Jun. 7, 2024
Maximum [Member] | Convertible Debt [Member] | Convertible Notes Dated February/March 2019 [Member]
Debt Instrument [Line Items]
Maturity Date	Mar. 13, 2024
Maximum [Member] | Convertible Debt [Member] | Convertible Note Dated June/July 2019 [Member]
Debt Instrument [Line Items]
Maturity Date	Jul. 15, 2024

Debt (Reconciliation Of Secured

Debt (Reconciliation Of Secured And Unsecured Contingent Obligation At Fair Value) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Secured Debt [Abstract]
Secured contingent payment obligation	$ 33,057
Secured contingent payment obligation	35,940	$ 33,057
Contingent Payment Obligation [Member] | Unsecured Debt [Member]
Secured Debt [Abstract]
Change in fair value	113	1,961
Unsecured Debt [Abstract]
Unsecured contingent payment obligation	5,222
Reclassification of other liabilities		1,003
Issuance of contingent payment rights	412	2,258
Change in fair value	113	1,961
Unsecured contingent payment obligation	5,747	5,222
Contingent Payment Obligation [Member] | Secured Debt [Member]
Secured Debt [Abstract]
Secured contingent payment obligation	33,057	26,651
Change in fair value	2,883	6,406
Secured contingent payment obligation	35,940	33,057
Unsecured Debt [Abstract]
Change in fair value	$ 2,883	$ 6,406

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - Secured Debt [Member]	Sep. 30, 2021item
Measurement Input, Discount Rate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.1441
Measurement Input, Risk Free Interest Rate [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.0041
Measurement Input, Entity Credit Risk [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.08
Measurement Input, Litigation Inherent Risk [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Measurement input	0.06

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Secured Contingent Payment Obligation [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	$ 35,940	$ 33,057
Unsecured Contingent Payment Obligation [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	5,747	5,222
Significant Unobservable Inputs (Level 3) [Member] | Secured Contingent Payment Obligation [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	35,940	33,057
Significant Unobservable Inputs (Level 3) [Member] | Unsecured Contingent Payment Obligation [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	$ 5,747	$ 5,222

Fair Value Measurements (Quanti

Fair Value Measurements (Quantitative Information) (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021USD ($)item
Unsecured Debt [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cash outflows | $	$ 0
Duration	1 year 3 months 18 days
Unsecured Debt [Member] | Minimum [Member] | Estimated Probabilities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated probabilities | item	0.25
Unsecured Debt [Member] | Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cash outflows | $	$ 8.1
Duration	2 years 6 months
Unsecured Debt [Member] | Weighted Average [Member] | Estimated Probabilities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated probabilities | item	0.25
Unsecured Debt [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cash outflows | $	$ 10.8
Duration	3 years 3 months 18 days
Unsecured Debt [Member] | Maximum [Member] | Estimated Probabilities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated probabilities | item	0.25
Secured Debt [Member] | Minimum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cash outflows | $	$ 0
Duration	3 months 18 days
Secured Debt [Member] | Minimum [Member] | Estimated Probabilities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated probabilities | item	0
Secured Debt [Member] | Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cash outflows | $	$ 50.2
Duration	2 years 6 months
Secured Debt [Member] | Weighted Average [Member] | Estimated Probabilities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated probabilities | item	0.21
Secured Debt [Member] | Maximum [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated cash outflows | $	$ 76.8
Duration	3 years 3 months 18 days
Secured Debt [Member] | Maximum [Member] | Estimated Probabilities [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Estimated probabilities | item	0.25

Legal Proceedings (Details)

Legal Proceedings (Details)	1 Months Ended										9 Months Ended
	Oct. 31, 2020USD ($)	Jul. 31, 2020item	Jun. 30, 2020item	May 31, 2020item	Apr. 30, 2020claim	Feb. 29, 2020item	Jul. 31, 2019itemclaim	Mar. 31, 2018claim	Mar. 31, 2017claim	Dec. 31, 2015claim	Sep. 30, 2021USD ($)claim
Commitments and Contingencies [Line Items]
Gain contingency, damages sought | $	$ 1,300,000,000
Number of patents allegedly infringed upon								4
Number of patents with motion to dismiss								3
Germany [Member]
Commitments and Contingencies [Line Items]
Accrued costs | $											$ 0
ParkerVision v. Apple and Qualcomm (Middle District of Florida) [Member]
Commitments and Contingencies [Line Items]
Number of patents allegedly infringed upon										4
Claim construction | item							2
ParkerVision V. Intel (Western District of Texas) [Member]
Commitments and Contingencies [Line Items]
Number of patents allegedly infringed upon | item				2		8
ParkerVision v. Intel II (Western District of Texas) [Member]
Commitments and Contingencies [Line Items]
Number of patents allegedly infringed upon | item		2
Number of patents found not infringed upon | item			1
ParkerVision v. Qualcomm (Middle District of Florida) [Member]
Commitments and Contingencies [Line Items]
Gain contingency, damages sought | $											$ 1,300,000,000
Number of patents allegedly infringed upon									6		4
Gain Contingency, Patents Found Infringed upon, Number									3
Number of patents allegedly infringed upon seeking invalidation							4
Number of patents with split decision									2
Claim construction					7
Maximum [Member] | ParkerVision v. Apple and Qualcomm (Middle District of Florida) [Member]
Commitments and Contingencies [Line Items]
Claim construction | item							6
Maximum [Member] | ParkerVision v. Qualcomm (Middle District of Florida) [Member]
Commitments and Contingencies [Line Items]
Claim construction					10

Stock Authorization and Issua_2

Stock Authorization and Issuance (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended
	Jun. 30, 2021	Apr. 30, 2021	Mar. 31, 2021	Jan. 31, 2021	Sep. 30, 2021	Sep. 28, 2021	Sep. 27, 2021
Stock Authorization And Issuance [Line Items]
Shares reserved for issuance						150,000,000	140,000,000
Exercise price per warrant			$ 1.75
Outstanding warrants					9,800,000
Sale of common stock, number of shares			3,230,942
Sale of common stock			$ 4,200
Sale of stock price per share			$ 1.29
Estimated fair market value					$ 2,800
Issuance of common stock for services, shares				500,000
Issuance of stocks to consultants, value				$ 330
Number of warrants issued			1,619,289
Unsecured Debt [Member]
Stock Authorization And Issuance [Line Items]
Proceeds from sale of contingent payment rights				$ 400
Mintz [Member]
Stock Authorization And Issuance [Line Items]
Repayments of Debt			$ 3,000
Consultants [Member]
Stock Authorization And Issuance [Line Items]
Issuance of common stock for services, shares		35,000
Issuance of stocks to consultants, value		$ 40
Weighted Average [Member]
Stock Authorization And Issuance [Line Items]
Warrant term					3 years 2 months 12 days
Exercise price per warrant					$ 0.73
Third Party [Member]
Stock Authorization And Issuance [Line Items]
Sale of common stock, number of shares	100,000			50,000
Sale of common stock	$ 120			$ 30
Issuance of common stock for services, shares		50,000
Issuance of stocks to consultants, value		$ 70
Securities Purchase Agreements [Member]
Stock Authorization And Issuance [Line Items]
Sale of common stock, number of shares				2,976,430
Sale of common stock				$ 1,000
Sale of stock price per share				$ 0.35

Share-Based Compensation (Detai

Share-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 10, 2021	Mar. 09, 2021	Apr. 30, 2021	Jan. 31, 2021	Sep. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost, net of estimated forfeitures					$ 3,700	$ 3,700
Expected weighted average period to recognize the compensation cost, in years						1 year 3 months
Total share-based expense					$ 750	$ 2,570
Number of shares authorized					27,000,000	27,000,000	12,000,000
Issuance of common stock for services, shares				500,000
Issuance of stocks to consultants, value				$ 330
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of option shares granted						$ 0.54
Consultants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock for services, shares			35,000
Issuance of stocks to consultants, value			$ 40
Consultant 1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		1 year
Issuance of common stock for services, shares		32,000
Issuance of stocks to consultants, value		$ 50
Consultant 2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Issuance of common stock for services, shares	150,000
Issuance of stocks to consultants, value	$ 200
Named Executive Employees [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock for services, shares						11,900,000
Non Employee Directors [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of common stock for services, shares						1,100,000