ParkerVision (PRKR) 10-Q 14 Aug 18 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 10, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Amendment Flag	false
Entity Registrant Name	PARKERVISION INC
Entity Central Index Key	914,139
Current Fiscal Year End Date	--12-31
Entity Filer Category	Smaller Reporting Company
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Entity Common Stock, Shares Outstanding		25,874,979
Trading Symbol	prkr

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 94	$ 354
Restricted cash equivalents	5	1,000
Available-for-sale securities		26
Accounts receivable, net of allowance for doubtful accounts of $0 and $3 at June 30, 2018 and December 31, 2017, respectively	11	27
Inventories, net	1,196	1,025
Prepaid expenses	804	940
Other current assets	208	71
Total current assets	2,318	3,443
Property and equipment, net	310	376
Intangible assets, net	4,518	5,076
Other assets, net	18	15
Total assets	7,164	8,910
CURRENT LIABILITIES:
Accounts payable	1,275	678
Accrued expenses:
Salaries and wages	373	376
Professional fees	1,731	2,054
Other accrued expenses	472	225
Note payable to a related party, current portion	382	294
Deferred rent, current portion	7	13
Deferred revenue		19
Total current liabilities	4,240	3,659
LONG-TERM LIABILITES:
Capital lease, net of current portion	2	2
Deferred rent, net of current portion	59	66
Note payable to a related party, net of current portion	422	531
Secured contingent payment obligation	18,383	15,896
Total long-term liabilities	18,866	16,495
Total liabilities	23,106	20,154
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' (DEFICIT) EQUITY:
Common stock, $.01 par value, 40,000 shares authorized, 25,875 and 21,222 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively	259	212
Warrants outstanding	335	826
Additional paid-in capital	363,671	359,141
Accumulated deficit	(380,207)	(371,423)
Total shareholders' (deficit) equity	(15,942)	(11,244)
Total liabilities and shareholders' (deficit) equity	$ 7,164	$ 8,910

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Condensed Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 0	$ 3
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	40,000,000	30,000,000
Common stock, shares issued	25,875,000	21,222,000
Common stock, shares outstanding	25,875,000	21,222,000

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Condensed Consolidated Statements Of Comprehensive Loss [Abstract]
Product revenue	$ 38		$ 115
Cost of sales	(31)		(84)
Write down of obsolete inventory	(42)		(42)
Gross margin	(35)		(11)
Research and development expenses	1,001	$ 1,025	1,875	$ 2,627
Selling, general and administrative expenses	2,902	2,699	5,879	6,058
Total operating expenses	3,903	3,724	7,754	8,685
Interest and other income		14	2	18
Interest expense	(18)	(17)	(34)	(36)
Change in fair value of secured contingent payment obligation (Note 10)	(538)		(987)	167
Total interest and other	(556)	(3)	(1,019)	149
Net loss	(4,494)	(3,727)	(8,784)	(8,536)
Other comprehensive gain, net of tax:
Unrealized gain on available-for-sale securities		5		4
Other comprehensive gain, net of tax		5		4
Comprehensive loss	$ (4,494)	$ (3,722)	$ (8,784)	$ (8,532)
Basic and diluted net loss per common share	$ (0.18)	$ (0.21)	$ (0.39)	$ (0.52)
Weighted average common shares outstanding	24,564	17,723	22,672	16,362

Condensed Consolidated Stateme5

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (4,494)	$ (3,727)	$ (8,784)	$ (8,536)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	312	322	633	651
Share-based compensation	348	542	711	1,205
Loss on disposal of equipment and other assets		71		71
Realized gain on available-for-sale securities		(4)		(4)
Writedown of obsolete inventory	42		42
Loss (gain) on changes in fair value	538		987	(167)
Changes in operating assets and liabilities:
Accounts receivable, net	(2)		16
Inventories	(14)	(130)	(213)	(130)
Prepaid expenses and other assets	(199)	(188)	(4)	(626)
Accounts payable and accrued expenses	701	(658)	499	(309)
Deferred rent	(7)	(12)	(13)	(35)
Total adjustments	1,719	(57)	2,658	656
Net cash used in operating activities	(2,775)	(3,784)	(6,126)	(7,880)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of available-for-sale investments		(9)		(4,811)
Proceeds from redemption of available-for-sale securities	6	2,800	26	2,800
Proceeds from sale of fixed assets		16		16
Payments for patent costs and other intangible assets	(4)	(9)	(4)	(26)
Purchases of property and equipment		(60)	(5)	(87)
Net cash provided by (used in) investing activities	2	2,738	17	(2,108)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net proceeds from issuance of common stock and warrants in public and private offerings	1,123		3,375	9,750
Principal payments on capital lease obligation		(1)		(1)
Principal payments on long-term debt	(21)		(21)
Proceeds from contingent payment obligation	1,500		1,500
Shares withheld for payment of taxes		(30)		(78)
Net cash provided by financing activities	2,602	(31)	4,854	9,671
NET DECREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH EQUIVALENTS	(171)	(1,077)	(1,255)	(317)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH EQUIVALENTS, beginning of period	270	1,929	1,354	1,169
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH EQUIVALENTS, end of period	$ 99	$ 852	$ 99	$ 852

Description Of Business

Description Of Business	6 Months Ended
	Jun. 30, 2018
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 a distributed WiFi product line for consumers and small businesses that is being marketed under the brand name Milo®. We have also designed, developed and marketed our proprietary radio frequency (“ RF ”) technologies and integrated circuits 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 and certain foreign jurisdictions. We believe certain patents protecting our proprietary technologies have been broadly infringed by others and therefore our business plan includes enforcement of our intellectual property rights through patent infringement litigation and licensing efforts.  We have a growth strategy that includes wireless product development, manufacturing and s ales of our own Milo-branded W iFi products and intellectual property licensing and enforcement. On a longer-term basis, our growth strategy includes the acquisition of, or other product ventures with, companies that have businesses that are synergistic with our products and technologies, particularly in the Internet of Things (“ IoT ”) space. We have made significant investments in developing and protecting our technologies and products, the returns on which are dependent upon the generation of future revenues from product sales and/or licensing for realization.  We also have significant net operating loss (“NOL”) carryforwards that we consider a key asset of our business as these NOLs can provide shelter to over $300 million of future earnings.

Liquidity And Going Concern

Liquidity And Going Concern	6 Months Ended
	Jun. 30, 2018
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. 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 in every year since inception and have utilized the proceeds from the sales of our equity securities and contingent funding arrangements with third-parties to fund our operations, including the cost of litigation. For the six months ended June 30, 2018, we incurred a net loss of approximately $8.8 million and negative cash flows from operations of approximately $6.1 million. At June 30, 2018, we had a working capital deficit of approximately $1.9 million and we had an accumulated deficit of approximately $380.2 million. These circumstances raise substantial doubt about our ability to continue to operate as a going concern within one year following the issue date of these condensed consolidated financial statements.  At June 30, 2018, we had cash, cash equivalents, and restricted cash equivalents of approximately $0.1 million. The costs associated with continued development and marketing of our Milo brand and product line is expected to exceed revenues generated from our product sales in the short-term. In addition, the amount and timing of proceeds from our patent enforcement actions, if any, is difficult to predict. As a result, we will need additional working capital to fund our operations.  For the six months ended June 30, 2018, w e received aggregate net proceeds of approximately $3 .4 million from the sale of equity securities including $2.0 million under an October 2017 common stock purchase agreement (the “Purchase Agreement”) with Aspi re Capital Fund, LLC (“Aspire Capital”), $1.2 million from the sale of our common stock under an at At-Market Issuance Sales Agreement (“ATM”) with FBR Capital Markets & Co., and $0.2 million from the sale of common stock to three of our directors (see Note 12). In April 2018, we received $1.5 million in additional funding from Brickell Key Investments (“BKI”) under an amendment to our February 2016 litigation funding agreement (see Note 10).  In July 2018, we received proceeds of approximately $1.0 million from the sale of equity securities to Aspire Capital in a private placement transaction. We expect to receive an additional $1.0 million from the sale of equity securities to Aspire Capital upon effectiveness of the registration statement filed August 9, 2018 to register the shares (see Note 15). In addition, as of June 30, 2018, we had $16.9 million remaining under the Purchase Agreement with Aspire Capital, subject to the terms and conditions of that agreement, including registration of additional shares.  We recently launched a national media campaign for our Milo-branded products. We intend to use amounts generated by our product sales, along with funds received from the sale of equity securities to fund our short-term working capital needs. In addition, we are pursuing additional litigation financing as well as a two to three year financing transaction with third parties that may include debt, equity, in the form of common and preferred stock, or a combination thereof. There can be no assurance that we will be able to consummate a financing transaction with any of these third parties or that the terms of such financing will be on terms and conditions that are acceptable.  Our ability to meet our liquidity needs for the next twelve months is dependent upon (i) our ability to develop, market and sell existing and new products; (ii) 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; and/or (iii) our ability to obtain additional debt or equity financing. We expect that revenue generated from product sales, patent enforcement actions, and technology licenses over the next twelve months will not be sufficient to cover our working capital requirements. In the event we do not generate sufficient revenues to cover our operational costs and contingent repayment obligations, we will be required to use available working capital and/or raise additional working capital through the sale of equity securities or other financing arrangements.  We expect to continue to invest in patent prosecution and enforcement, product development, and sales, marketing, and customer support for our technologies and products. 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	6 Months Ended
	Jun. 30, 2018
Basis Of Presentation [Abstract]
Basis Of Presentation	3. Basis of Presentation  The accompanying unaudited condensed consolidated financial statements for the period ended June 30, 2018 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 six months ended June 30, 2018 are not necessarily indicative of the results that may be expected for the year ending December 31, 2018 or future years. Certain reclassifications have been made to prior period amounts to conform to the current period presentation. 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, 2017, but does not include all disclosures required by GAAP. 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, 2017 (“2017 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	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Accounting Policies	4. Accounting Policies  There have been no changes in accounting policies from those stated in our 2017 Annual Report, except as follows:  Adoption of New Accounting Standards  As of January 1, 2018, we adopted Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers.” ASU 2014-09 implements a common revenue standard that clarifies the principles for recognizing revenue. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The adoption of ASU 2014-09 had no impact on our consolidated financial statements.  Recent Accounting Pronouncements  In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-02 “Leases,” to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. Under the new guidance, a lessee will be required to recognize assets and liabilities for capital and operating leases with lease terms of more than 12 months. ASU 2016-02 is effective for interim and annual periods beginning after December 15, 2018. Early adoption is permitted. In July 2018, the FASB issued ASU 2018-10 “Codification Improvements to Topic 842, Leases,” to clarify application of certain aspects of the new leases standard and to remove inconsistencies within the guidance and ASU 2018-11 “Targeted Improvements,” which provides for an alternate transition method . Specifically, ASU 2018-11 allows the new lease standard to be applied as of the adoption date with a cumulative-effect adjustment to the opening balance of retained earnings rather than retroactive restatement of all periods presented . We are currently assessing the impact of the new lease guidance on our consolidated financial statements. We have identified all existing operating and financing leases and are in the process of determining the present value of existing lease assets and liabilities under the new guidance. We are also currently formalizing processes and controls to identify, classify and measure new leases in accordance with ASU 2016-02. In February 2018, the FASB issued ASU 2018-02, “ Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income . ” The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The amendments in this update are effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted and should be applied either in the period of adoption or retrospecti vely to each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. We have no stranded tax effects included in our other comprehensive loss and therefore the adoption of ASU 2018-02 is not expected to impact our consolidated financial statements. 

Loss Per Common Share

Loss Per Common Share	6 Months Ended
	Jun. 30, 2018
Loss Per Common Share [Abstract]
Loss Per Common Share	5. 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.  Options and warrants to purchase approximately 1.4 million and 1. 1 million shares of common stock were outstanding at June 30, 2018 and 2017, respectively. In addition, unvested restricted stock units (“RSUs”), representing approximately 0.3 million and 0.2 million shares of common stock were outstanding at June 30, 2018 and 2017, respectively. These options, warrants and RSUs were excluded from the computation of diluted loss per common share as their effect would have been anti-dilutive. 

Cash

Cash	6 Months Ended
	Jun. 30, 2018
Cash [Abstract]
Cash	6. Cash  Cash, cash equivalents and restricted cash equivalents, as presented in the accompanying condensed consolidated statements of cash flows, consisted of the following (in thousands):      June 30, December 31,  2018 2017  Cash and cash equivalents $ 94 $ 354  Restricted cash equivalents 5 1,000  $ 99 $ 1,354  

Inventories, Net

Inventories, Net	6 Months Ended
	Jun. 30, 2018
Inventories, Net [Abstract]
Inventories, Net	7. Inventories, net  Inventories, net of reserves for obsolete inventory, consisted of the following (in thousands):     June 30, December 31,  2018 2017  Raw materials $ 311 $ 573  Work-in-process - -  Finished goods 927 452  1,238 1,025  Reserve for obsolete inventories (42) -  $ 1,196 $ 1,025   

Prepaid Expenses

Prepaid Expenses	6 Months Ended
	Jun. 30, 2018
Prepaid Expenses [Abstract]
Prepaid Expenses	8. Prepaid Expenses  Prepaid expenses consist of the following (in thousands):     June 30, December 31,  2018 2017  Prepaid licenses, software tools and support $ 391 $ 404  Prepaid advertising 200 75  Prepaid services 95 253  Prepaid insurance 41 54  Prepaid inventory and production tooling 57 121  Other prepaid expenses 20 33  $ 804 $ 940  

Intangible Assets

Intangible Assets	6 Months Ended
	Jun. 30, 2018
Intangible Assets [Abstract]
Intangible Assets	9. Intangible Assets  Intangible assets consist of the following (in thousands):     June 30, December 31,  2018 2017  Patents and copyrights $ 19,328 $ 19,324  Accumulated amortization (14,810) (14,248)  $ 4,518 $ 5,076 

Long-Term Debt

Long-Term Debt	6 Months Ended
	Jun. 30, 2018
Long-Term Debt [Abstract]
Long-Term Debt	10. Long-term debt  Note Payable to a Related Party  The note payable to a related party at June 30, 2018 and December 31, 2017, consisted of the following (in thousands):     Description Interest Rate Interest Payable Maturity Date Six months ended June 30, 2018 Year ended December 31, 2017  Note payable to a related party 8% Monthly March 31, 2020 $ 804 $ 825  Less current maturities 382 294  Long-term note payable $ 422 $ 531   In February 2016, we entered into an agreement with Sterne, Kessler, Goldstein, & Fox, PLLC (“SKGF”), a related party, to convert $0.8 million in outstanding unpaid fees into an unsecured promissory note. The balance of the note was scheduled to mature on December 31, 2017. In January 2018, we amended the note, retroactive to December 31, 2017 to allow for interest only payments through March 2018 and princip al and interest payments through March 31, 2020. In August 2018, we further amended the note, retroactive to April 30, 2018 to defer principal and interest payments from May 1, 2018 through September 30, 2018. The note, as amended, provides for payments of principal and interest of approximately $48,500 per month commencing October 30, 2018 through March 31, 2020 . Secured Contingent Payment Obligation  The following table provides a reconciliation of our secured contingent payment obligation , measured at estimated fair market value, for the six months ended June 30 , 2018 and the year ended December 31, 2017 (in thousands) :       Six months ended June 30, 2018 Year ended December 31, 2017  Secured contingent payment obligation, beginning of year $ 15,896 $ 14,185  Proceeds from contingent payment obligation 1,500 1,000  Change in fair value 987 711  Secured contingent payment obligation, end of year $ 18,383 $ 15,896   Our secured contingent payment obligation represents the estimated fair value of our repayment obligation to BKI under a February 2016 funding agreement, as amended in May 2016, December 2017, and April 2018. Under the agreement, as of June 30, 2018, we had received aggregate proceeds of $15.5 million in exchange for BKI’s right to reimbursement and compensation from gross proceeds resulting from patent enforcement and other patent monetization actions. We have repaid an aggregate of $3.3 million to BKI from patent enforcement proceeds.  BKI is entitled to priority payment of 100% of proceeds received from all patent-related actions until such time that BKI has been repaid in full. After repayment of the funded amount, BKI is entitled to a portion of remaining proceeds up to a specified minimum return which is determined as a percentage of the funded amount and varies based on the timing of repayment. In addition, BKI is entitled to a pro rata portion of proceeds from specified legal actions to the extent aggregate proceeds from those actions exceed the specified minimum return.  BKI holds a senior security interest in our assets until such time as the specified minimum return is paid, in which case, the security interest will be released except with respect to the patents and proceeds related to specific legal actions. The security interest is enforceable by BKI in the event that we are in default under the agreement which would occur if (i) we fail, after notice, to pay proceeds to BKI, (ii) we become insolvent or insolvency proceedings are commenced (and not subsequently discharged) with respect to us, (iii) our creditors commence actions against us (which are not subsequently discharged) that affect our material assets, (iv) we, without BKI’s consent, incur indebtedness other than immaterial ordinary course indebtedness, or (v) there is an uncured non-compliance of our obligations or misrepresentations under the agreement. As of June 30, 2018, we are in compliance with our obligations under this agreement.  We have elected to measure our secured contingent payment obligation at 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 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. As of June 30, 2018, the fair value of the obligation is estimated to be approximately $18.4 million.  

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Jun. 30, 2018
Share-Based Compensation [Abstract]
Share-Based Compensation	 11. 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 2017 Annual Report.  The following table presents share-based compensation expense included in our condensed consolidated statements of comprehensive loss for the three and six months ended June 30, 2018 and 2017, respectively (in thousands):     Three Months Ended Six Months Ended  June 30, June 30,  2018 2017 2018 2017  Research and development expenses $ 50 $ 165 $ 115 $ 410  Selling, general and administrative expenses 298 377 596 795  Total share-based compensation expense $ 348 $ 542 $ 711 $ 1,205   As of June 30, 2018 , we had approximately $0.3 million in unrecognized compensation cost related to unvested share-based compensation awards. This cost is expected to be recognized over a weighted average period of approximately one year.

Stock Authorization And Issuanc

Stock Authorization And Issuance	6 Months Ended
	Jun. 30, 2018
Stock Authorization And Issuance [Abstract]
Stock Authorization And Issuance	12. Stock Authorization and Issuance  On Jun e 12, 2018, our shareholders approved an amendment to our articles of incorporation to increase the number of authorized shares of common stock from 30 million to 40 million shares.  D uring the six months ended June 30, 2018, we sold an aggregate of approximately 2.9 million shares of our common stock at an average price of $0.70 per share under our Purchase Agreement with Aspire Capital for net proceeds of approximately $2.0 million. The shares are registered under a registration statement filed in November 2017. In June 2018, our shareholders approved the issuance of shares to Aspire Capital under the Purchase Agreement in excess of 19.99% of our pre-transaction shares outstanding. As of June 30, 2018, we had $16.9 million remaining under the Purchase Agreement, subject to the terms and conditions of the Purchase Agreement including registration of additional shares.  During the six months ended June 30, 2018, we sold an aggregate of approximately 1.2 million shares of our common stock at an average market price of $0.90 per share under an ATM agreement for net proceeds of approximately $1.2 million. The shares were sold pursuant to a shelf registration statement filed in November 2016. As of June 30, 2018, there were no remaining shares available for issuance under the ATM.  In March 2018, we received proceeds of approximately $0. 2 million from the sale of approximately 0.22 million unregistered shares of our common stock at a price of $0.83 per share to three of our directors .

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2018
Fair Value Measurements [Abstract]
Fair Value Measurements	13. Fa ir Value Measurements  The following tables summarize the fair value of our assets and liabilities measured at fair value on a recurring basis as of June 30, 2018 and December 31, 2017 (in thousands):       Fair Value Measurements  Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3)  June 30, 2018:  Assets:  Restricted cash equivalents $ 5 $ 5 $ - $ -  Liabilities:  Secured contingent payment obligation 18,383 - - 18,383      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, 2017:  Assets:  Restricted cash equivalents $ 1,000 $ 1,000 $ - $ -  Available-for-sale securities 26 26 - -  Liabilities:  Secured contingent payment obligation 15,896 - - 15,896   For the three and six months ended June 30, 2018 we had no transfers of assets or liabilities between the levels of the hierarchy. The fair value of our secured contingent payment obligation was 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. The contingent payment obligation does not have a fixed duration; however, our cash flow projections assume a remaining duration ranging from approximately one to three years. The cash outflows could potentially range from $0 to $ 34 million through 2021 and the cash flow scenarios have probabilities of 0% to 30% . We used a risk-adjusted discount rate of 16.63% , based on a risk-free rate of 2.63% as adjusted by 8% for credit risk and 6% for litigation inherent risk. Changes in any of these Level 3 inputs could result in a higher or lower fair value measurement.

Commitments And Contingencies

Commitments And Contingencies	6 Months Ended
	Jun. 30, 2018
Commitments And Contingencies [Abstract]
Commitments And Contingencies	 14. Commitments and Contingencies  Lease Commitments There have been no material changes in our lease commitments from those included in in our 2017 Annual Report, except for a one-year extension of the lease for our corporate headquarters in July 2018 (see Note 15).   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 at the Patent Trial and Appeal Board of the U.S. Patent and Trademark Office (“PTAB”) and in the Federal Patent Court in Germany in an attempt to invalidate certain of our patent claims. These patent-related proceedings are more fully described below. We have several patent enforcement actions in Germany which has a “loser pay” system whereby the non-prevailing party is responsible for statutory attorney fees and costs. We do not believe it is probable that we will have unfavorable outcomes in any of our German cases and therefore we have not recorded any expenses related to these statutory fees and costs. However, there is at least a reasonable possibility of an unfavorable outcome in any one or more of these matters that could result in expenses in the aggregate that could have a material unfavorable impact on our consolidated results of operations as more fully discussed below.  ParkerVision v. Qualcomm and HTC (Middle District of Florida) We have a patent infringement complaint pending in the Middle District of Florida against Qualcomm and Qualcomm Atheros, Inc. (collectively “Qualcomm”), and HTC (HTC Corporation and HTC America, Inc.) (the “Qualcomm Action”) seeking unspecified damages and injunctive relief for infringement of certain of our patents. Certain of the defendants have filed counterclaims against us for non-infringement and invalidity for all patents in the case. A claim construction hearing was held in August 2015 but no ruling on claim construction has been issued by the court. In February 2016, the court granted the parties’ joint motion to stay these proceedings . In May 2017, we filed a motion to continue the stay of these proceedings pending an appeal of certain PTAB decisions with regard to our U.S. patent 6,091,940 (“the ‘940 Patent”) as discussed below.  Qualcomm v. ParkerVision (PTAB) In August 2015, Qualcomm filed an aggregate of ten petitions for Inter Partes Review (“IPR”) with the PTAB seeking to invalidate certain claims related to three of the eleven patents originally asserted in our Qualcomm Action. In March 2016, the PTAB issued decisions denying institution of trial for three of the petitions, all of which relate to our U.S. patent 7,039,372 (“the ‘372 Patent”). The remaining petitions, all of which relate to the ‘940 Patent and U.S. patent 7,966,012 (“the ‘012 Patent”) were instituted for trial by the PTAB. In May 2016, the PTAB granted our motion to disclaim the challenged claims of the ‘012 Patent and entered an adverse judgment against us with respect to those claims. In March 2017, the PTAB issued its decisions on the six outstanding IPRs, all of which relate to the ‘940 Patent. The PTAB ruled in our favor on three of the six petitions, ruled in Qualcomm’s favor on two of the six petitions and issued a split decision on the claims covered in the sixth petition. As a result of the PTAB decisions, certain claims of the ‘940 Patent which are the subject of our district court case against Qualcomm and HTC were found to be un-patentable and certain claims were found not to be un-patentable . In May 2017, we filed our notice of appeal of these decisions with the United States Court of Appeals for the Federal Circuit (“CAFC”) . Qualcomm also appealed the decisions that were unfavorable to them. A hearing was held on August 7, 2018 at the CAFC and we are currently awaiting the court’s ruling.  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, LG, Samsung and Qualcomm alleging infringement of four of our patents. In February 2016, the district court proceedings wer e 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 (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 is scheduled for August 31, 2018.  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 patents previously asserted against LG in the middle district of Florida (see ParkerVision v. Apple and Qualcomm above). We elected to dismiss the case in the middle district of Florida and re-file in New Jersey as a result of a recent 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. LG Electronics (Munich, Germany) In June 2016, we filed a complaint in Munich District Court against LG Electronics Deutschland GmbH, a German subsidiary of LG Electronics, Inc. (“LGE”) seeking damages and injunctive relief for the alleged infringement of the German part of our European patent 1 206 831 (“the ‘831 Patent). A hearing in this case was held in November 2016 at which time the court concluded that certain LGE products using Qualcomm RF circuitry infringe our patent. The final decision in this case is stayed pending resolution of the corresponding nullity, or validity, action filed by Qualcomm in the German Federal Patent Court in Munich (see Qualcomm v. ParkerVision below). If we do not prevail in this case, we may be subject to a claim for reimbursement of statutory attorney’s fees and costs estimated at approximately $0.06 million for which we have posted a bond. If we prevail in the validity action filed by Qualcomm, the district court will then issue its final infringement decision which, if favorable, will likely include an injunction blocking the sale and importati on of LGE products in Germany.  ParkerVision v. Apple (Munich, Germany) - the Apple I case In October 2016, we filed a complaint in Munich District Court against Apple, Inc., Apple Distribution International, and Apple Retail Germany B.V. & Co. KG (collectively “Apple”) seeking damages and injunctive relief for the alleged infringement of the ‘831 Patent (the “Apple I” case). In February 2017, we amended our complaint adding the infringement of a second German patent and alleging infringement by Apple devices that incorporate an Intel transceiver chip. The Munich Regional Court bifurcated the new claims into a second case ( see ParkerVision v. Apple - the Apple II case below ). A hearing was held in May 2017 in the Apple I case. In June 2017, the court deferred its ruling pending the decision from the German Federal Patent Court in the validity action filed by Qualcomm (see Qualcomm v. ParkerVision below ). We anticipate the decision in this case will mirror that in the ParkerVision v. LG case in Germany discussed above. If we do not prevail in this case, we may be subject to a claim for reimbursement of statutory attorney’s fees and costs estimated at approximately $0.1 million. We expect to post a bond to cover this exposure in the third quarter of 2018. Qualcomm v. ParkerVision (Federal Patent Court in Germany) In August 2016, Qualcomm filed a validity action in Federal Patent Court in Germany against the ’831 Patent. The outcome of this validity action impacts our German patent infringement cases against LGE and Apple as discussed above. An oral hearing is scheduled in this case on October 17, 2018 and a decision is expected to be handed down at that time. The Federal Patent Court can uphold the ‘831 Patent, declare the ‘831 Patent to be invalid, or, alternatively, can uphold the ‘831 Patent with amended, narrowed claims that we have proposed. If the ‘831 Patent is declared invalid, we would be subject to a claim for reimbursement of statutory attorney fees and costs of approximately $0.2 million.  ParkerVision v. Apple (Munich, Germany)-the Apple II case The Apple II case seeks damages and injunctive relief for the alleged infringement of the German part of our European patent 1 135 853 (“the ‘853 Patent). A hearing was held in November 2017. Subsequent to the hearing, the court requested that we supplement certain elements of the infringement claims against Apple devices. The court also denied Apple’s request that we provide a bond covering any possible claims for reimbursement of stat utory attorney’s fees and costs. Apple appealed the bond decision and, in order to expedite proceedings, in April 2018, we paid a bond of approximately $0.1 million, which is our estimated maximum exposure in this case. In May 2018, we filed our supplemental briefs as requested by the court. Apple has filed its reply briefs and we are awaiting a ruling and/or a second oral hearing in this case which we expect to occur during the third quarter of 2018 .  Intel v. ParkerVision (Federal Patent Court in Germany) In August 2017, Intel filed a nullity action in German Federal Patent Court claiming invalidity of the ‘853 Patent that is the subject of the Apple II case. If the ‘853 Patent is declared invalid, we would be subject to a claim for reimbursement of statutory attorney fees and costs of approximately $0.2 million. We intend to vigorously defend the validity of our patent. No dates have yet been set in this nullity action .

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	1 5 . Subsequent Events On July 26, 2018, we entered into a Securities Purchase Agreement (the “Agreement”) with Aspire Capital for the sale of up to $2.0 million of shares of our common stock (or P re- F unded warrants ) and W arrants, in two tranches . Upon the initial closing, we sold to Aspire Capital (i) a pre-funded warrant to purchase up to 2,500,000 shares of our common stock with an exercise price of $.01 per share (“Pre-Funded Warrant”) and (ii) a warrant to purc hase up to 2,500,000 shares of our common stock with an exercise price of $.74 per share (a “Warrant”), for a n aggregate purchase price of approximately $1.0 million . In addition, the Agreement provides that upon effectiveness of a registration statement to register the underlying shares, provided that the closing price of our common stock on such date is equal to or greater than $.50 per share, we will sell to Aspire Capital (i) an additional 2,500,000 shares of common stock (or a Pre-Funded Warrant in lieu thereof ) and (ii) a Warrant to purchase an additional 2,500,000 shares of common stock at an exercise price of $0.74 per share , for an additional aggregate purchase price of approximately $1.0 million . The Warrants and Pre-Funded Warrants expire five years after their issuance and have substantially similar other terms, except (i) for exercise price and (ii) that the Warrants are exercisable on the date that is six months after issuance and the Pre-Funded Warrants are immediately exercisable after issuance. On July 18, 2018, we amended the operating lease agreement for our corporate headquarters, extending the lease term through July 31, 2019 with an option to renew through July 31, 2020 . Our straight-line rental payments under the amendment are approximately $30,500 per month. 

Accounting Policies (Policy)

Accounting Policies (Policy)	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Adoption Of New Accounting Standards	Adoption of New Accounting Standards  As of January 1, 2018, we adopted Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers.” ASU 2014-09 implements a common revenue standard that clarifies the principles for recognizing revenue. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The adoption of ASU 2014-09 had no impact on our consolidated financial statements.
Recent Accounting Pronouncements	Recent Accounting Pronouncements  In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-02 “Leases,” to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. Under the new guidance, a lessee will be required to recognize assets and liabilities for capital and operating leases with lease terms of more than 12 months. ASU 2016-02 is effective for interim and annual periods beginning after December 15, 2018. Early adoption is permitted. In July 2018, the FASB issued ASU 2018-10 “Codification Improvements to Topic 842, Leases,” to clarify application of certain aspects of the new leases standard and to remove inconsistencies within the guidance and ASU 2018-11 “Targeted Improvements,” which provides for an alternate transition method . Specifically, ASU 2018-11 allows the new lease standard to be applied as of the adoption date with a cumulative-effect adjustment to the opening balance of retained earnings rather than retroactive restatement of all periods presented . We are currently assessing the impact of the new lease guidance on our consolidated financial statements. We have identified all existing operating and financing leases and are in the process of determining the present value of existing lease assets and liabilities under the new guidance. We are also currently formalizing processes and controls to identify, classify and measure new leases in accordance with ASU 2016-02. In February 2018, the FASB issued ASU 2018-02, “ Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income . ” The amendments in this update allow a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act. The amendments in this update are effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted and should be applied either in the period of adoption or retrospecti vely to each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act is recognized. We have no stranded tax effects included in our other comprehensive loss and therefore the adoption of ASU 2018-02 is not expected to impact our consolidated financial statements.

Cash (Tables)

Cash (Tables)	6 Months Ended
	Jun. 30, 2018
Cash [Abstract]
Summary Of Cash, Cash Equivalents And Restricted Cash Equivalents	   June 30, December 31,  2018 2017  Cash and cash equivalents $ 94 $ 354  Restricted cash equivalents 5 1,000  $ 99 $ 1,354  

Inventories, Net (Tables)

Inventories, Net (Tables)	6 Months Ended
	Jun. 30, 2018
Inventories, Net [Abstract]
Schedule Of Inventories	   June 30, December 31,  2018 2017  Raw materials $ 311 $ 573  Work-in-process - -  Finished goods 927 452  1,238 1,025  Reserve for obsolete inventories (42) -  $ 1,196 $ 1,025  

Prepaid Expenses (Tables)

Prepaid Expenses (Tables)	6 Months Ended
	Jun. 30, 2018
Prepaid Expenses [Abstract]
Schedule Of Prepaid Expenses	  June 30, December 31,  2018 2017  Prepaid licenses, software tools and support $ 391 $ 404  Prepaid advertising 200 75  Prepaid services 95 253  Prepaid insurance 41 54  Prepaid inventory and production tooling 57 121  Other prepaid expenses 20 33  $ 804 $ 940  

Intangible Assets (Tables)

Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2018
Intangible Assets [Abstract]
Schedule Of Intangible Assets	Intangible assets consist of the following (in thousands):     June 30, December 31,  2018 2017  Patents and copyrights $ 19,328 $ 19,324  Accumulated amortization (14,810) (14,248)  $ 4,518 $ 5,076  

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Jun. 30, 2018
Long-Term Debt [Abstract]
Schedule Of Notes Payable	    Description Interest Rate Interest Payable Maturity Date Six months ended June 30, 2018 Year ended December 31, 2017  Note payable to a related party 8% Monthly March 31, 2020 $ 804 $ 825  Less current maturities 382 294  Long-term note payable $ 422 $ 531  
Reconciliation Of Secured Contingent Obligation At Fair Value	    Six months ended June 30, 2018 Year ended December 31, 2017  Secured contingent payment obligation, beginning of year $ 15,896 $ 14,185  Proceeds from contingent payment obligation 1,500 1,000  Change in fair value 987 711  Secured contingent payment obligation, end of year $ 18,383 $ 15,896   

Share-Based Compensation (Table

Share-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2018
Share-Based Compensation [Abstract]
Schedule Of Share-Based Compensation Expense Included In Statements Of Operations	   Three Months Ended Six Months Ended  June 30, June 30,  2018 2017 2018 2017  Research and development expenses $ 50 $ 165 $ 115 $ 410  Selling, general and administrative expenses 298 377 596 795  Total share-based compensation expense $ 348 $ 542 $ 711 $ 1,205  

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Measurements [Abstract]
Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis	    Fair Value Measurements  Total Fair Value Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3)  June 30, 2018:  Assets:  Restricted cash equivalents $ 5 $ 5 $ - $ -  Liabilities:  Secured contingent payment obligation 18,383 - - 18,383      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, 2017:  Assets:  Restricted cash equivalents $ 1,000 $ 1,000 $ - $ -  Available-for-sale securities 26 26 - -  Liabilities:  Secured contingent payment obligation 15,896 - - 15,896  

Description Of Business (Detail

Description Of Business (Details) $ in Millions	Jun. 30, 2018USD ($)
Description Of Business [Abstract]
Operating loss carryforwards	$ 300

Liquidity And Going Concern (De

Liquidity And Going Concern (Details)	Aug. 09, 2018USD ($)	Jul. 31, 2018USD ($)	Jun. 30, 2018USD ($)employee	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)employee	Jun. 30, 2017USD ($)	Apr. 26, 2018USD ($)	Mar. 31, 2018employee	Dec. 31, 2017USD ($)
Liquidity And Working Capital [Line Items]
Net loss			$ (4,494,000)	$ (3,727,000)	$ (8,784,000)	$ (8,536,000)
Net cash used in operating activities			(2,775,000)	$ (3,784,000)	(6,126,000)	(7,880,000)
Accumulated deficit			(380,207,000)		(380,207,000)				$ (371,423,000)
Net working capital			1,900,000		1,900,000
Cash, cash equivalents and available for sale securities			100,000		100,000
Restricted cash equivalents			5,000		5,000				$ 1,000,000
Net proceeds			1,123,000		3,375,000	$ 9,750,000
Proceeds from issurance of common stock					2,000,000
Amount remaining under the ATM			0		0
Market Issuance Sales Agreement [Member]
Liquidity And Working Capital [Line Items]
Proceeds from issurance of common stock					1,200,000
Aspire Purchase Agreement [Member]
Liquidity And Working Capital [Line Items]
Proceeds from issurance of common stock		$ 1,000,000			2,000,000
Amount remaining under the ATM			$ 16,900,000		$ 16,900,000
Subsequent Event [Member] | Aspire Purchase Agreement [Member]
Liquidity And Working Capital [Line Items]
Proceeds from issurance of common stock	$ 1,000,000
Minimum [Member]
Liquidity And Working Capital [Line Items]
Financing transaction, term					2 years
Maximum [Member]
Liquidity And Working Capital [Line Items]
Financing transaction, term					3 years
Director [Member]
Liquidity And Working Capital [Line Items]
Proceeds from issurance of common stock					$ 200,000
Number of directors | employee			3		3			3
ParkerVision vs. Apple, LG, Samsung And Qualcomm [Member]
Liquidity And Working Capital [Line Items]
Litigation funds			$ 15,500,000		$ 15,500,000		$ 1,500,000

Loss Per Common Share (Details)

Loss Per Common Share (Details) - shares shares in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Options And Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from the computation of diluted loss per share	1.4	1.1
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	0.3	0.2

Cash (Details)

Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016
Cash [Abstract]
Cash and cash equivalents	$ 94		$ 354
Restricted cash equivalents	5		1,000
Cash, cash equivalents and restricted cash equivalents	$ 99	$ 270	$ 1,354	$ 852	$ 1,929	$ 1,169

Inventories, Net (Details)

Inventories, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Inventories, Net [Abstract]
Raw materials	$ 311	$ 573
Work-in-process
Finished goods	927	452
Inventory	1,238	1,025
Reserve for obsolete inventories	(42)
Total inventories	$ 1,196	$ 1,025

Prepaid Expenses (Details)

Prepaid Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Prepaid Expenses [Abstract]
Prepaid licenses, software tools and support	$ 95	$ 253
Prepaid advertising	200	75
Prepaid services	391	404
Prepaid Insurance	41	54
Prepaid inventory and production tooling	57	121
Other prepaid expenses	20	33
Prepaid expenses	$ 804	$ 940

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Intangible Assets [Abstract]
Patents and copyrights	$ 19,328	$ 19,324
Accumulated amortization	(14,810)	(14,248)
Intangible assets	$ 4,518	$ 5,076

Long-Term Debt (Narrative) (Det

Long-Term Debt (Narrative) (Details) - USD ($)	1 Months Ended	6 Months Ended
	Feb. 29, 2016	Jun. 30, 2018	Apr. 26, 2018
Debt Instrument [Line Items]
Fair value of note payable		$ 18,400,000
ParkerVision vs. Apple, LG, Samsung And Qualcomm [Member]
Debt Instrument [Line Items]
Percentage of proceeds payment	100.00%
Litigation funds		15,500,000	$ 1,500,000
Payment of legal fees and expenses		3,300,000
Unsecured Note [Member]
Debt Instrument [Line Items]
Debt	$ 800,000
Debt payment per month		$ 48,500
Debt, first payment date		Oct. 30, 2018
Maturity date		Mar. 31, 2020
Note Payable To A Related Party [Member]
Debt Instrument [Line Items]
Maturity date		Mar. 31, 2020

Long-Term Debt (Schedule Of Not

Long-Term Debt (Schedule Of Notes Payable) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Less current maturities	$ 382	$ 294
Long-term note payable	$ 422	531
Note Payable To A Related Party [Member]
Debt Instrument [Line Items]
Interest rate	8.00%
Interest Payable	Monthly
Maturity Date	Mar. 31, 2020
Note payable to a related party	$ 804	$ 825

Long-Term Debt (Reconciliation

Long-Term Debt (Reconciliation Of Secured Contingent Obligation At Fair Value) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Long-Term Debt [Abstract]
Secured contingent payment obligation, beginning of year	$ 15,896	$ 14,185
Proceeds from contingent payment obligation	1,500	1,000
Change in fair value	987	711
Secured contingent payment obligation, end of year	$ 18,383	$ 15,896

Share-Based Compensation (Narra

Share-Based Compensation (Narrative) (Details) - USD ($) shares in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2018	Jun. 12, 2018	Mar. 31, 2018
Share-Based Compensation [Abstract]
Number of shares authorized		40	30
Unrecognized compensation cost, net of estimated forfeitures	$ 0.3
Expected weighted average period to recognize the compensation cost, in years	1 year

Share-Based Compensation (Sched

Share-Based Compensation (Schedule Of Share-Based Compensation Expense Included In Statements Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share-based compensation expense	$ 348	$ 542	$ 711	$ 1,205
Research And Development Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share-based compensation expense	50	165	115	410
Selling, General and Administrative Expenses [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Total share-based compensation expense	$ 298	$ 377	$ 596	$ 795

Stock Authorization And Issua41

Stock Authorization And Issuance (Details) $ / shares in Units, shares in Thousands	1 Months Ended		6 Months Ended
	Jul. 31, 2018USD ($)	Mar. 31, 2018USD ($)employee$ / sharesshares	Jun. 30, 2018USD ($)employee$ / sharesshares	Jun. 12, 2018shares
Stock Authorization And Issuance [Line Items]
Proceeds from issurance of common stock			$ 2,000,000
Number of shares authorized | shares		30,000		40,000
Amount remaining under the ATM			0
Director [Member]
Stock Authorization And Issuance [Line Items]
Proceeds from issurance of common stock			$ 200,000
Number of directors | employee		3	3
Sale of common stock, number of shares | shares		220
Sale of common stock		$ 200,000
Sale of stock price per share | $ / shares		$ 0.83
Market Issuance Sales Agreement [Member]
Stock Authorization And Issuance [Line Items]
Proceeds from issurance of common stock			$ 1,200,000
Sale of common stock			$ 1,200,000
Sale of stock price per share | $ / shares			$ 0.90
Aspire Purchase Agreement [Member]
Stock Authorization And Issuance [Line Items]
Proceeds from issurance of common stock	$ 1,000,000		$ 2,000,000
Sale of common stock, number of shares | shares			2,900
Sale of stock price per share | $ / shares			$ 0.70
Purchase notice			19.99%
Amount remaining under the ATM			$ 16,900,000

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details)	6 Months Ended
	Jun. 30, 2018USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets level 1 to Level 2 transfers	$ 0
Assets level 2 to Level 1 transfers	0
Liabilities level 1 to Level 2 transfers	0
Liabilities level 2 to Level 1 transfers	$ 0
Secured Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maturity date	Dec. 31, 2021
Discount rate	16.63%
Risk free rate	2.63%
Credit risk	8.00%
litigation inherent risk	6.00%
Unsecured Note [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Maturity date	Mar. 31, 2020
Minimum [Member] | Secured Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent obligation, term	1 year
Contingent obligation	$ 0
Contingent obligation, probability	0.00%
Maximum [Member] | Secured Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent obligation, term	3 years
Contingent obligation	$ 34,000,000
Contingent obligation, probability	30.00%

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Secured Contingent Payment Obligation [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities	$ 18,383	$ 15,896
Restricted Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	5	1,000
Available-For-Sale Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		26
Quoted Prices In Active Markets (Level 1) [Member] | Secured Contingent Payment Obligation [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities
Quoted Prices In Active Markets (Level 1) [Member] | Restricted Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	5	1,000
Quoted Prices In Active Markets (Level 1) [Member] | Available-For-Sale Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets		26
Significant Other Observable Inputs (Level 2) [Member] | Secured Contingent Payment Obligation [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities
Significant Other Observable Inputs (Level 2) [Member] | Restricted Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets
Significant Other Observable Inputs (Level 2) [Member] | Available-For-Sale Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets
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	18,383	15,896
Significant Unobservable Inputs (Level 3) [Member] | Restricted Cash Equivalents [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets
Significant Unobservable Inputs (Level 3) [Member] | Available-For-Sale Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets

Commitments And Contingencies (

Commitments And Contingencies (Details) $ in Thousands	1 Months Ended					6 Months Ended
	Apr. 30, 2018USD ($)	Mar. 31, 2017item	Mar. 31, 2016claim	Dec. 31, 2015item	Aug. 31, 2015itemclaim	Jun. 30, 2018USD ($)item
Commitments and Contingencies [Line Items]
Number of patents dismissed			3			3
Qualcomm Inc And Qualcomm Atheros, Inc vs ParkerVision [Member]
Commitments and Contingencies [Line Items]
Number of petitions					10
Number of additional patents allegedly infringed upon | claim					3
Number of petitions outstanding		6
Number of patents found infringed upon		3
Number of patents allegedly infringed upon | claim					11
Number of patents found not infringed upon		2
Number of patents with split decision		1
ParkerVision v. LG Electronics [Member]
Commitments and Contingencies [Line Items]
Estimated attorney's fees and costs | $						$ 60
ParkerVision v. Apple and Qualcomm (Middle District of Florida) [Member]
Commitments and Contingencies [Line Items]
Number of patents allegedly infringed upon				4
Qualcomm v. ParkerVision (Federal Patent Court in Germany) [Member]
Commitments and Contingencies [Line Items]
Estimated attorney's fees and costs | $						200
ParkerVision v. Apple (Munich, Germany) [Member]
Commitments and Contingencies [Line Items]
Estimated attorney's fees and costs | $						100
Loss Contingency, Loss in Period | $	$ 100
Intel v. ParkerVision (Federal Patent Court in Germany) [Member]
Commitments and Contingencies [Line Items]
Estimated attorney's fees and costs | $						$ 200

Subsequent Events (Details)

Subsequent Events (Details) - USD ($)	Jul. 26, 2018	Jun. 30, 2018	Dec. 31, 2017
Subsequent Event [Line Items]
Warrants		$ 335,000	$ 826,000
Market Issuance Sales Agreement [Member]
Subsequent Event [Line Items]
Sale of stock price per share		$ 0.90
Aspire Purchase Agreement [Member]
Subsequent Event [Line Items]
Sale of stock price per share		$ 0.70
Aspire Purchase Agreement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Aggregate offering price	$ 2,000,000
Aggregate offering shares	2,500,000
Sale of stock price per share	$ 0.01
Warrants to purchase common stock	2,500,000
Warrants	$ 1,000,000
Exercise price per warrant	$ 0.74
Expiration period from issuance	5 years
Period after issuance warrants may be exercised	6 months
Aspire Purchase Agreement Tranche 2 [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Aggregate offering shares	2,500,000
Warrants to purchase common stock	2,500,000
Warrants	$ 1,000,000
Exercise price per warrant	$ 0.74
Expiration period from issuance	5 years
Aspire Purchase Agreement Tranche 2 [Member] | Minimum [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Share Price	$ 0.50
Corporate Office [Member]
Subsequent Event [Line Items]
Lease End Date		Jul. 31, 2019
Maturity after option to renew		Jul. 31, 2020
Rental payment per month		$ 30,500