Electro-Sensors (ELSE) 10-Q 12 Nov 20 2020 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2020	Nov. 11, 2020
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Filer Category	Non-accelerated Filer
Entity Registrant Name	ELECTRO SENSORS INC
Entity Central Index Key	0000351789
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Small Business	true
Entity Common Stock, Shares Outstanding		3,395,521
Trading Symbol	ELSE
Entity Emerging Growth Company	false
Document Quarterly Report	true
Document Transition Report	false
Entity File Number	000-09587
Entity Incorporation, State or Country Code	MN
Entity Tax Identification Number	41-0943459
Entity Address, Address Line One	6111 Blue Circle Drive
Entity Address, City or Town	Minnetonka
Entity Address, State or Province	MN
Entity Address, Postal Zip Code	55343-9108
City Area Code	952
Local Phone Number	930-0100
Title of 12(b) Security	Common stock
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes
Entity Shell Company	false

Condensed Balance Sheets

Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 7,062	$ 8,785
Investments	2,041	45
Trade receivables, less allowance for doubtful accounts of $11	1,039	1,036
Inventories	1,659	1,695
Other current assets	196	159
Income tax receivable	23	0
Total current assets	12,020	11,720
Deferred income tax asset, net	227	203
Intangible assets, net	294	489
Property and equipment, net	1,010	1,063
Total assets	13,551	13,475
Current liabilities
Current maturities of financing lease	6	5
Accounts payable	181	129
Accrued expenses	573	431
Total current liabilities	760	565
Long-term liabilities
Financing lease, net of current maturities	14	19
Total long-term liabilities	14	19
Commitments and contingencies
Stockholders' equity
Common stock par value $0.10 per share; authorized 10,000,000 shares; 3,395,521 shares issued and outstanding	339	339
Additional paid-in capital	2,035	2,030
Retained earnings	10,403	10,522
Total stockholders' equity	12,777	12,891
Total liabilities and stockholders' equity	$ 13,551	$ 13,475

Condensed Balance Sheets (Paren

Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Balance Sheets [Abstract]
Trade receivables, allowance for doubtful accounts	$ 11	$ 11
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	3,395,521	3,395,521
Common stock, shares outstanding	3,395,521	3,395,521

Condensed Statements Of Compreh

Condensed Statements Of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statements Of Comprehensive Income (Loss) [Abstract]
Net sales	$ 1,899	$ 2,049	$ 5,914	$ 6,317
Cost of goods sold	907	975	2,825	2,941
Gross profit	992	1,074	3,089	3,376
Operating expenses
Selling and marketing	417	494	1,318	1,495
General and administrative	420	404	1,325	1,294
Research and development	209	194	622	603
Total operating expenses	1,046	1,092	3,265	3,392
Operating loss	(54)	(18)	(176)	(16)
Non-operating income (expense)
Loss on investment	0	0	(3)	0
Interest expense	(2)	0	(3)	(1)
Interest income	2	41	35	126
Other income	0	2	2	7
Total non-operating income, net	0	43	31	132
Income (loss) before income tax expense (benefit)	(54)	25	(145)	116
Provision for (benefit of) income tax	(8)	6	(26)	25
Net income (loss)	(46)	19	(119)	91
Other comprehensive income
Change in unrealized value of available-for-sale securities, net of income tax	0	2	0	10
Other comprehensive income	0	2	0	10
Net comprehensive income (loss)	$ (46)	$ 21	$ (119)	$ 101
Basic
Net income (loss) per share	$ (0.01)	$ 0.01	$ (0.04)	$ 0.03
Weighted average shares	3,395,521	3,395,521	3,395,521	3,395,521
Diluted
Net income (loss) per share	$ (0.01)	$ 0.01	$ (0.04)	$ 0.03
Weighted average shares	3,395,521	3,398,533	3,395,521	3,397,385

Condensed Statements Of Changes

Condensed Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Issued [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]
Beginning Balance at Dec. 31, 2018	$ 12,725	$ 339	$ 2,019	$ 10,335	$ 32
Beginning Balance, Shares at Dec. 31, 2018		3,395,521
Other comprehensive income	10				10
Stock-based compensation expense	8		8
Net income (loss)	91			91
Ending Balance at Sep. 30, 2019	12,834	$ 339	2,027	10,426	42
Ending Balance, Shares at Sep. 30, 2019		3,395,521
Beginning Balance at Jun. 30, 2019	12,810	$ 339	2,024	10,407	40
Beginning Balance, Shares at Jun. 30, 2019		3,395,521
Other comprehensive income	2				2
Stock-based compensation expense	3		3
Net income (loss)	19			19
Ending Balance at Sep. 30, 2019	12,834	$ 339	2,027	10,426	42
Ending Balance, Shares at Sep. 30, 2019		3,395,521
Beginning Balance at Dec. 31, 2019	12,891	$ 339	2,030	10,522	0
Beginning Balance, Shares at Dec. 31, 2019		3,395,521
Other comprehensive income	0
Stock-based compensation expense	5		5
Net income (loss)	(119)			(119)
Ending Balance at Sep. 30, 2020	12,777	$ 339	2,035	10,403	0
Ending Balance, Shares at Sep. 30, 2020		3,395,521
Beginning Balance at Jun. 30, 2020	12,822	$ 339	2,034	10,449	0
Beginning Balance, Shares at Jun. 30, 2020		3,395,521
Other comprehensive income	0
Stock-based compensation expense	1		1
Net income (loss)	(46)			(46)
Ending Balance at Sep. 30, 2020	$ 12,777	$ 339	$ 2,035	$ 10,403	$ 0
Ending Balance, Shares at Sep. 30, 2020		3,395,521

Condensed Statements Of Cash Fl

Condensed Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net income (loss)	$ (119)	$ 91
Adjustments to reconcile net income (loss) to net cash from operating activities:
Depreciation and amortization	272	231
Deferred income taxes	(24)	(6)
Stock-based compensation expense	5	8
Interest accrued on treasury bills	(2)	(120)
Other Noncash Expense	3	0
Change in:
Trade receivables	(3)	(69)
Inventories	36	(101)
Other current assets	(37)	(39)
Accounts payable	52	80
Accrued expenses	142	105
Income tax receivable/payable	(23)	30
Net cash from operating activities	302	210
Cash flows from (used in) investing activities
Purchases of treasury bills	(7,747)	(7,662)
Proceeds from the maturity of treasury bills	5,750	9,750
Purchase of intangible asset	0	(150)
Purchase of property and equipment	(24)	(84)
Net cash from (used in) investing activities	(2,021)	1,854
Cash flows used in financing activities
Payments on financing lease	(4)	(4)
Proceeds from loans	645	0
Repayment of loan principal	(645)	0
Net cash used in financing activities	(4)	(4)
Net increase (decrease) in cash and cash equivalents	(1,723)	2,060
Cash and cash equivalents, beginning	8,785	1,057
Cash and cash equivalents, ending	7,062	3,117
Supplemental cash flow information
Cash paid for income taxes	20	1
Cash paid for interest	$ 3	$ 1

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2020
Basis of Presentation [Abstract]
Basis of Presentation	Note 1. Basis of Presentation The accompanying unaudited financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions and regulations of the Securities and Exchange Commission to Form 10-Q. Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America for complete financial statements. This report should be read together with the Company’s Annual Report on Form 10-K for the year ended December 31, 2019, including the audited financial statements and footnotes therein. Management believes that the unaudited financial statements include all adjustments, consisting of normal recurring accruals, necessary to fairly state the financial position and results of operations as of September 30, 2020 and for the three and nine-month periods ended September 30, 2020 and 2019, in accordance with accounting principles generally accepted in the United States of America. The results of interim periods may not be indicative of results to be expected for the year. Nature of Business Electro-Sensors, Inc. manufactures and markets a complete line of monitoring and control systems for a variety of industrial machinery. The Company uses leading-edge technology to continuously improve its products, with the ultimate goal of manufacturing the industry-preferred product for every market served. The Company sells these products through an internal sales staff, manufacturers’ representatives, and distributors to a wide variety of industries that use the products in a variety of applications to monitor process machinery operations. The Company markets its products to customers located throughout the United States, Canada, Latin America, Europe, and Asia. Re venue Rec At contract inception, the Company assesses the goods and services promised to a customer and identifies a performance obligation for each distinct promised good or service. We also determine the transaction price for each performance obligation at contract inception. Our contracts, generally in the form of a purchase order, specify the product or service that is promised to the customer. The typical contract life is less than one month and contains a single performance obligation, to provide conforming goods or services to the customer. On some contracts, we have a second performance obligation, which typically is the initialization of the HazardPRO TM Fair Value Measurements The carrying value of trade receivables, accounts payable, and other financial working capital items approximates fair value at September 30, 2020 and December 31, 2019, due to the short maturity nature of these instruments. Intangibles Intangible assets are comprised of the HazardPRO technology and a technology license. The Company amortizes the cost of these intangible assets on a straight-line method over their estimated useful lives. Stock-Based Compensation The Company records compensation expense for stock options based on the estimated fair value of the options on the date of grant using the Black-Scholes-Merton (“BSM”) option pricing model. The Company uses historical data, among other factors, to estimate the expected price volatility, the expected option life, and the expected forfeiture rate. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for the estimated life of the option. As of , there wa s approximat of unrecognized compensation expense related to unvested stock options. The Company expects to recognize this expense over the next . Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Significant estimates, including the underlying assumptions, consist of economic lives of long-lived assets, realizability of trade receivables, valuation of deferred tax assets/liabilities, inventory, investments, stock compensation expense, and the potential estimated impact on operations due to the COVID-19 pandemic as it relates to disruptions to our supply chain and customer demand. It is at least reasonably possible that these estimates may change in the near term Net Income (Loss) per Common Share Ba sic an d diluted net three and nine-month periods ended September 30, 2020, 332,500 weighted average common shares for underlying stock options have been excluded from the calculation because their effect would be anti-dilutive. eriods September 30, 2019, weighted average

Investments

Investments	9 Months Ended
	Sep. 30, 2020
Investments [Abstract]
Investments	Note 2 . Investments The Company has investments in commercial paper, Treasury Bills, and common equity securities of a private U.S. company. The commercial paper investment is in U.S. debt with ratings of A-1+, P-1, and F1+. The Treasury Bills have remaining terms rang ing from The Company classifies its investments in commercial paper and Treasury Bills as available-for-sale, accounted for at fair value with unrealized gains and losses recognized in accumulated other comprehensive gain on the balance sheet. The cost and estimated fair value of the Company’s investments are as follows: Cost Gross unrealized gain Gross u nrealize loss Fair value September 30, 2020 Com mercial $ 866 $ 0 $ 0 $ 866 Treasury Bills 7,748 1 0 7,749 E q uity Secu 54 0 (12 ) 42 8,668 1 (12 ) 8,657 Less Cash Equivalents 6,616 0 0 6,616 Total Investments, September 30, 2020 $ 2,052 $ 1 $ (12 ) $ 2,041 December 31, 2019 Commercial Paper $ 797 $ 0 $ 0 $ 797 Treasury Bills 7,734 0 0 7,734 Equity Securities 54 0 (9 ) 45 8,585 0 (9 ) 8,576 Less Cash Equivalents 8,531 0 0 8,531 Total Investments, December 31, 2019 $ 54 $ 0 $ (9 ) $ 45

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2020
Fair Value Measurements [Abstract]
Fair Value Measurements	Note 3 The following ta ble provides info September 30, 2020 Carrying amount Fair Value Measurement Using in balance sheet Fair Value Level 1 Level 2 Level 3 Assets: Cash equivalents Commercial paper $ 866 $ 866 $ 866 $ 0 $ 0 Tre asury 5,750 5,750 5,750 0 0 Treasury bills 1,999 1,999 1,999 0 0 Equity Securities 42 42 0 0 42 December 31, 2019 Carrying amount Fair Value Measurement Using in balance sheet Fair Value Level 1 Level 2 Level 3 Assets: Cash equivalents Commercial paper $ 797 $ 797 $ 797 $ 0 $ 0 Treasury bills 7,734 7,734 7,734 0 0 Equity Securities 45 45 0 0 45 The fair value of the commercial paper and treasury bills is based on quoted market prices in an active market. There is no public market for the available-for-sale equity security owned by the Company. The Company has determined the fair value for this equity security based on financial and other factors that are considered level 3 The change at ue on a recur ring sis are Nine Months Ended September 30, 2020 2019 Beginning Balance $ 45 $ 45 Change in Fair Value ( ) 0 E nding B $ 42 $ 45

Inventories

Inventories	9 Months Ended
	Sep. 30, 2020
Inventories [Abstract]
Inventories	Note 4 Inven tories use tion of cost of go September 30, 2020 December 31, 2019 Raw Materials $ 993 $ 973 Work In Process 333 383 Finished Goods 353 359 Reserve for Obsolescence (20 ) (20 ) Total Inventories $ 1,659 $ 1,695

Basis of Presentation (Policy)

Basis of Presentation (Policy)	9 Months Ended
	Sep. 30, 2020
Basis of Presentation [Abstract]
Nature of Business	Nature of Business Electro-Sensors, Inc. manufactures and markets a complete line of monitoring and control systems for a variety of industrial machinery. The Company uses leading-edge technology to continuously improve its products, with the ultimate goal of manufacturing the industry-preferred product for every market served. The Company sells these products through an internal sales staff, manufacturers’ representatives, and distributors to a wide variety of industries that use the products in a variety of applications to monitor process machinery operations. The Company markets its products to customers located throughout the United States, Canada, Latin America, Europe, and Asia.
Revenue Recognition	Re venue Rec At contract inception, the Company assesses the goods and services promised to a customer and identifies a performance obligation for each distinct promised good or service. We also determine the transaction price for each performance obligation at contract inception. Our contracts, generally in the form of a purchase order, specify the product or service that is promised to the customer. The typical contract life is less than one month and contains a single performance obligation, to provide conforming goods or services to the customer. On some contracts, we have a second performance obligation, which typically is the initialization of the HazardPRO TM
Fair Value Measurements	Fair Value Measurements The carrying value of trade receivables, accounts payable, and other financial working capital items approximates fair value at September 30, 2020 and December 31, 2019, due to the short maturity nature of these instruments.
Intangibles	Intangibles Intangible assets are comprised of the HazardPRO technology and a technology license. The Company amortizes the cost of these intangible assets on a straight-line method over their estimated useful lives.
Stock-Based Compensation	Stock-Based Compensation The Company records compensation expense for stock options based on the estimated fair value of the options on the date of grant using the Black-Scholes-Merton (“BSM”) option pricing model. The Company uses historical data, among other factors, to estimate the expected price volatility, the expected option life, and the expected forfeiture rate. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for the estimated life of the option. As of , there wa s approximat of unrecognized compensation expense related to unvested stock options. The Company expects to recognize this expense over the next .
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Significant estimates, including the underlying assumptions, consist of economic lives of long-lived assets, realizability of trade receivables, valuation of deferred tax assets/liabilities, inventory, investments, stock compensation expense, and the potential estimated impact on operations due to the COVID-19 pandemic as it relates to disruptions to our supply chain and customer demand. It is at least reasonably possible that these estimates may change in the near term
Net Income (Loss) per Common Share	Net Income (Loss) per Common Share Ba sic an d diluted net three and nine-month periods ended September 30, 2020, 332,500 weighted average common shares for underlying stock options have been excluded from the calculation because their effect would be anti-dilutive. eriods September 30, 2019, weighted average

Investments (Tables)

Investments (Tables)	9 Months Ended
	Sep. 30, 2020
Investments [Abstract]
Cost And Estimated Fair Value Of Investments	Cost Gross unrealized gain Gross u nrealize loss Fair value September 30, 2020 Com mercial $ 866 $ 0 $ 0 $ 866 Treasury Bills 7,748 1 0 7,749 E q uity Secu 54 0 (12 ) 42 8,668 1 (12 ) 8,657 Less Cash Equivalents 6,616 0 0 6,616 Total Investments, September 30, 2020 $ 2,052 $ 1 $ (12 ) $ 2,041 December 31, 2019 Commercial Paper $ 797 $ 0 $ 0 $ 797 Treasury Bills 7,734 0 0 7,734 Equity Securities 54 0 (9 ) 45 8,585 0 (9 ) 8,576 Less Cash Equivalents 8,531 0 0 8,531 Total Investments, December 31, 2019 $ 54 $ 0 $ (9 ) $ 45

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2020
Fair Value Measurements [Abstract]
Schedule of fair value measurement on a recurring basis	September 30, 2020 Carrying amount Fair Value Measurement Using in balance sheet Fair Value Level 1 Level 2 Level 3 Assets: Cash equivalents Commercial paper $ 866 $ 866 $ 866 $ 0 $ 0 Tre asury 5,750 5,750 5,750 0 0 Treasury bills 1,999 1,999 1,999 0 0 Equity Securities 42 42 0 0 42 December 31, 2019 Carrying amount Fair Value Measurement Using in balance sheet Fair Value Level 1 Level 2 Level 3 Assets: Cash equivalents Commercial paper $ 797 $ 797 $ 797 $ 0 $ 0 Treasury bills 7,734 7,734 7,734 0 0 Equity Securities 45 45 0 0 45
Summary of change in level 3 assets at fair value on a recurring basis	Nine Months Ended September 30, 2020 2019 Beginning Balance $ 45 $ 45 Change in Fair Value ( ) 0 E nding B $ 42 $ 45

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2020
Inventories [Abstract]
Schedule of Inventories used in the determination of cost of goods sold	September 30, 2020 December 31, 2019 Raw Materials $ 993 $ 973 Work In Process 333 383 Finished Goods 353 359 Reserve for Obsolescence (20 ) (20 ) Total Inventories $ 1,659 $ 1,695

Basis of Presentation (Narrativ

Basis of Presentation (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Basis of Presentation [Abstract]
Unrecognized compensation expense related to unvested stock options	$ 10		$ 10
Number of years to recognize remaining expense			2 years
Options excluded from the computations of diluted weighted-average shares outstanding	332,500	329,488	332,500	330,636

Investments (Narrative) (Detail

Investments (Narrative) (Details)	9 Months Ended
	Sep. 30, 2020
Minimum [Member]
Schedule of Available-for-sale Securities [Line Items]
Treasury Bills, term	1 month
Maximum [Member]
Schedule of Available-for-sale Securities [Line Items]
Treasury Bills, term	4 months

Investments (Cost And Estimated

Investments (Cost And Estimated Fair Value Of Investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Cost	$ 2,052	$ 54
Gross unrealized gain	1	0
Gross unrealized loss	(12)	(9)
Fair value, investments	2,041	45
Cash equivalents, Carrying amount	7,062	8,785	$ 3,117	$ 1,057
Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	866	797
Gross unrealized gain	0	0
Gross unrealized loss	0	0
Fair value, investments	866	797
Treasury Bills [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	7,748	7,734
Gross unrealized gain	1	0
Gross unrealized loss	0	0
Fair value, investments	7,749	7,734
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	54	54
Gross unrealized gain	0	0
Gross unrealized loss	(12)	(9)
Fair value, investments	42	45
Debt and Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Cost	8,668	8,585
Gross unrealized gain	1	0
Gross unrealized loss	(12)	(9)
Fair value, investments	8,657	8,576
Less Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Gross unrealized gain	0	0
Gross unrealized loss	0	0
Cash equivalents, Carrying amount	6,616	8,531
Cash equivalents, Fair value	$ 6,616	$ 8,531

Fair Value Measurements (Fair V

Fair Value Measurements (Fair Value Measurements On A Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Carrying amount	$ 7,062	$ 8,785	$ 3,117	$ 1,057
Equity Securities, Fair Value	2,041	45
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Carrying amount	866	797
Cash equivalents, Fair Value	866	797
Commercial Paper [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Fair Value	866	797
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Fair Value	0	0
Commercial Paper [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Fair Value	0	0
Treasury Bills [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Carrying amount	5,750	7,734
Cash equivalents, Fair Value	5,750	7,734
Treasury bills, Carrying amount	1,999
Treasury bills, Fair Value	1,999
Treasury Bills [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Fair Value	5,750	7,734
Treasury bills, Fair Value	1,999
Treasury Bills [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Fair Value	0	0
Treasury bills, Fair Value	0
Treasury Bills [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Fair Value	0	0
Treasury bills, Fair Value	0
Limited Marketable Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, Carrying amount	42	45
Equity Securities, Fair Value	42	45
Limited Marketable Company [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, Fair Value	0	0
Limited Marketable Company [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, Fair Value	0	0
Limited Marketable Company [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity Securities, Fair Value	$ 42	$ 45

Fair Value Measurements (Fair_2

Fair Value Measurements (Fair Value Assets Measured on Recurring Basis Unobservable Inputs Reconciliation) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Fair Value Measurements [Abstract]
Beginning Balance	$ 45	$ 45
Change in Fair Value	(3)	0
Ending Balance	$ 42	$ 45

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Inventories [Abstract]
Raw Materials	$ 993	$ 973
Work In Process	333	383
Finished Goods	353	359
Reserve for Obsolescence	(20)	(20)
Total Inventories	$ 1,659	$ 1,695