SUNation Energy (SUNE) 10-Q 14 Aug 20 2020 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Aug. 01, 2020
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Current Fiscal Year End Date	--12-31
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Transition Report	false
Entity File Number	001-31588
Entity Registrant Name	COMMUNICATIONS SYSTEMS INC
Entity Incorporation, State or Country Code	MN
Entity Tax Identification Number	41-0957999
Entity Address, Address Line One	10900 Red Circle Drive
Entity Address, City or Town	Minnetonka
Entity Address, State or Province	MN
Entity Address, Postal Zip Code	55343
City Area Code	952
Local Phone Number	996-1674
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock, par value , $.05 per share
Trading Symbol	JCS
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		9,356,385
Amendment Flag	false
Document Fiscal Period Focus	Q2
Entity Central Index Key	0000022701

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2020	Dec. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 20,546,013	$ 13,928,504
Restricted cash	479,644	679,006
Investments	3,748,313	9,449,650
Trade accounts receivable, less allowance for doubtful accounts of $153,000 and $154,000, respectively	8,189,950	10,242,405
Inventories	9,941,657	8,531,112
Prepaid income taxes	87,129	72,994
Other current assets	879,127	1,160,865
Current assets held for sale		5,337,274
TOTAL CURRENT ASSETS	43,871,833	49,401,810
PROPERTY, PLANT AND EQUIPMENT, net	7,903,542	8,238,089
OTHER ASSETS:
Investments	1,253,855	250,000
Goodwill	410,918
Deferred income taxes		9,534
Operating lease right of use asset	513,276	367,909
Intangible assets	3,190,000
Other assets, net	207,439
Non-current assets held for sale		883,370
TOTAL OTHER ASSETS	5,575,488	1,510,813
TOTAL ASSETS	57,350,863	59,150,712
CURRENT LIABILITIES:
Accounts payable	4,639,862	3,720,445
Accrued compensation and benefits	2,610,933	3,517,331
Operating lease liability	199,993	115,935
Other accrued liabilities	2,003,821	2,602,752
Dividends payable	205,878	200,363
Deferred revenue	220,649
Current liabilities held for sale		1,193,218
TOTAL CURRENT LIABILITIES	9,881,136	11,350,044
LONG TERM LIABILITIES:
Long-term compensation plans	67,175	164,348
Operating lease liability	294,310	244,038
Deferred revenue	144,063
TOTAL LONG-TERM LIABILITIES	505,548	408,386
COMMITMENTS AND CONTINGENCIES (Footnote 8)
STOCKHOLDERS' EQUITY
Preferred stock, par value $1.00 per share; 3,000,000 shares authorized; none issued
Common stock, par value $.05 per share; 30,000,000 shares authorized; 9,351,486 and 9,252,749 shares issued and outstanding, respectively	467,573	462,637
Additional paid-in capital	43,495,046	42,977,914
Retained earnings	3,830,132	4,649,395
Accumulated other comprehensive loss	(828,572)	(697,664)
TOTAL STOCKHOLDERS' EQUITY	46,964,179	47,392,282
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 57,350,863	$ 59,150,712

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Condensed Consolidated Balance Sheets [Abstract]
Trade accounts receivable, allowance for doubtful accounts	$ 153	$ 154
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	3,000,000	3,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.05	$ 0.05
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	9,351,486	9,252,749
Common stock, shares outstanding	9,351,486	9,252,749

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Condensed Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) [Abstract]
Sales	$ 9,627,952	$ 10,704,467	$ 18,790,694	$ 21,920,637
Cost of sales	6,147,904	6,463,930	11,573,499	13,053,884
Gross profit	3,480,048	4,240,537	7,217,195	8,866,753
Operating expenses:
Selling, general and administrative expenses	4,731,887	5,369,869	9,672,558	10,817,464
Acquisition costs	394,366		414,585
Total operating expenses	5,126,253	5,369,869	10,087,143	10,817,464
Operating loss from continuing operations	(1,646,205)	(1,129,332)	(2,869,948)	(1,950,711)
Other income (expenses):
Investment and other income	288,481	85,742	400,238	121,632
Gain (loss) on sale of assets		(9,000)	308,403	(9,935)
Interest and other expense	(9,498)	(9,594)	(19,091)	(19,038)
Other income, net	278,983	67,148	689,550	92,659
Operating loss from continuing operations before income taxes	(1,367,222)	(1,062,184)	(2,180,398)	(1,858,052)
Income tax benefit	(446)	(11,869)	(4,903)	(15,841)
Net loss from continuing operations	(1,366,776)	(1,050,315)	(2,175,495)	(1,842,211)
Net income from discontinued operations, net of tax	(568,745)	3,823,493	1,744,607	4,855,502
Net (loss) income	(1,935,521)	2,773,178	(430,888)	3,013,291
Other comprehensive (loss) income, net of tax:
Unrealized gain on available-for-sale securities	24,549	403	10,097	403
Foreign currency translation adjustment	(8,902)	(47,666)	(141,005)	(19,048)
Total other comprehensive income (loss)	15,647	(47,263)	(130,908)	(18,645)
Comprehensive (loss) income	$ (1,919,874)	$ 2,725,915	$ (561,796)	$ 2,994,646
Basic net (loss) income per share:
Continuing operations	$ (0.15)	$ (0.11)	$ (0.24)	$ (0.20)
Discontinued operations	(0.06)	0.41	0.19	0.53
Basic net (loss) income per share	(0.21)	0.30	(0.05)	0.33
Diluted net (loss) income per share:
Continuing operations	(0.15)	(0.11)	(0.24)	(0.20)
Discontinued operations	(0.06)	0.41	0.19	0.53
Diluted net (loss) income per share	$ (0.21)	$ 0.30	$ (0.05)	$ 0.33
Weighted Average Basic Shares Outstanding	9,350,344	9,316,576	9,307,967	9,246,233
Weighted Average Dilutive Shares Outstanding	9,350,344	9,319,106	9,307,967	9,246,233
Dividends declared per share	$ 0.02	$ 0.02	$ 0.04	$ 0.04

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Total
BALANCE at Dec. 31, 2018	$ 457,922	$ 42,680,499	$ (734,001)	$ (751,293)	$ 41,653,127
BALANCE, Shares at Dec. 31, 2018	9,158,438
Net (loss) income			3,013,291		3,013,291
Issuance of common stock under Employee Stock Purchase Plan	$ 1,074	47,520			48,594
Issuance of common stock under Employee Stock Purchase Plan, Shares	21,477
Issuance of common stock to Employee Stock Ownership Plan	$ 6,641	262,995			269,636
Issuance of common stock to Employee Stock Ownership Plan, Shares	132,826
Issuance of common stock under Executive Stock Plan	$ 229				229
Issuance of common stock under Executive Stock Plan, Shares	4,575
Share based compensation		188,587			188,587
Other share retirements	$ (37)	(3,422)	1,494		(1,965)
Other share retirements, Shares	(740)
Shareholder dividends			(379,411)		(379,411)
Other comprehensive (loss) income				(18,645)	(18,645)
BALANCE at Jun. 30, 2019	$ 465,829	43,176,179	1,901,373	(769,938)	44,773,443
BALANCE, Shares at Jun. 30, 2019	9,316,576
BALANCE at Mar. 31, 2019	$ 465,426	43,036,333	(677,819)	(722,675)	42,101,265
BALANCE, Shares at Mar. 31, 2019	9,308,520
Net (loss) income			2,773,178		2,773,178
Issuance of common stock under Employee Stock Purchase Plan	$ 403	20,946			21,349
Issuance of common stock under Employee Stock Purchase Plan, Shares	8,056
Share based compensation		118,900			118,900
Shareholder dividends			(193,986)		(193,986)
Other comprehensive (loss) income				(47,263)	(47,263)
BALANCE at Jun. 30, 2019	$ 465,829	43,176,179	1,901,373	(769,938)	44,773,443
BALANCE, Shares at Jun. 30, 2019	9,316,576
BALANCE at Dec. 31, 2019	$ 462,637	42,977,914	4,649,395	(697,664)	47,392,282
BALANCE, Shares at Dec. 31, 2019	9,252,749
Net (loss) income			(430,888)		(430,888)
Issuance of common stock under Employee Stock Purchase Plan	$ 403	41,653			42,056
Issuance of common stock under Employee Stock Purchase Plan, Shares	8,069
Issuance of common stock to Employee Stock Ownership Plan	$ 3,303	404,281			407,584
Issuance of common stock to Employee Stock Ownership Plan, Shares	66,059
Issuance of common stock under Executive Stock Plan	$ 2,429	5,180			7,609
Issuance of common stock under Executive Stock Plan, Shares	48,584
Share based compensation		176,627			176,627
Other share retirements	$ (1,199)	(110,609)	(7,117)		(118,925)
Other share retirements, Shares	(23,975)
Shareholder dividends			(381,258)		(381,258)
Other comprehensive (loss) income				(130,908)	(130,908)
BALANCE at Jun. 30, 2020	$ 467,573	43,495,046	3,830,132	(828,572)	46,964,179
BALANCE, Shares at Jun. 30, 2020	9,351,486
BALANCE at Mar. 31, 2020	$ 467,347	43,381,778	5,957,796	(844,219)	48,962,702
BALANCE, Shares at Mar. 31, 2020	9,346,966
Net (loss) income			(1,935,521)		(1,935,521)
Issuance of common stock under Employee Stock Purchase Plan	$ 226	19,933			20,159
Issuance of common stock under Employee Stock Purchase Plan, Shares	4,520
Issuance of common stock under Executive Stock Plan	$ 100	5,180			5,280
Issuance of common stock under Executive Stock Plan, Shares	2,000
Share based compensation		97,459			97,459
Other share retirements	$ (100)	(9,304)	(735)		(10,139)
Other share retirements, Shares	(2,000)
Shareholder dividends			(191,408)		(191,408)
Other comprehensive (loss) income				15,647	15,647
BALANCE at Jun. 30, 2020	$ 467,573	$ 43,495,046	$ 3,830,132	$ (828,572)	$ 46,964,179
BALANCE, Shares at Jun. 30, 2020	9,351,486

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Condensed Consolidated Statements of Changes in Stockholders' Equity [Abstract]
Shareholder dividends per share	$ 0.02	$ 0.02	$ 0.04	$ 0.04

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (430,888)	$ 3,013,291
Net income from discontinued operations, net of tax	1,744,607	4,855,502
Net loss from continuing operations	(2,175,495)	(1,842,211)
Adjustments to reconcile net income (loss) to net cash (used in) provided by operating activities:
Depreciation and amortization	429,800	540,867
Share based compensation	176,627	188,587
Deferred taxes	9,534
(Gain) loss on sale of assets	(303,898)	9,935
Changes in assets and liabilities:
Trade accounts receivable	2,200,300	1,698,214
Inventories	(1,372,814)	1,601,413
Prepaid income taxes	(14,136)	86,709
Other assets, net	409,003	(98,501)
Accounts payable	879,851	(1,358,635)
Accrued compensation and benefits	(671,164)	(459,520)
Other accrued liabilities	(488,731)	(162,780)
Income taxes payable		(28,267)
Net cash (used in) provided by operating activities - continuing operations	(921,123)	175,811
Net cash (used in) provided by operating activities - discontinued operations	(1,216,374)	2,224,488
Net cash (used in) provided by operating activities	(2,137,497)	2,400,299
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(89,240)	(243,000)
Acquisition of business, net of cash acquired	(3,984,447)
Purchases of investments	(9,316,544)	(4,000,571)
Proceeds from the sale of property, plant and equipment	420,000
Proceeds from the sale of investments	14,024,125
Net cash provided by (used in) investing activities - continuing operations	1,053,894	(4,243,571)
Net cash provided by (used in) investing activities - discontinued operations	7,992,340	4,900,356
Net cash provided by investing activities	9,046,234	656,785
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends paid	(375,742)	(370,658)
Proceeds from issuance of common stock, net of shares withheld	49,665	46,858
Purchase of common stock	(118,925)
Net cash used in financing activities	(445,002)	(323,800)
EFFECT OF FOREIGN EXCHANGE RATE CHANGES ON CASH	(45,588)	(11,594)
NET INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	6,418,147	2,721,690
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD	14,607,510	11,056,426
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD	21,025,657	13,778,116
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Income taxes paid (refunded)	4,602	(76,151)
Interest paid	19,036	18,939
Dividends declared not paid	205,878	193,294
Capital expenditures in accounts payable		39,129
Operating right of use assets obtained in exchange for lease obligations	$ 208,650	$ 449,995

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2020
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTE 1 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  Description of Business  Communications Systems, Inc. (herein collectively referred to as “CSI,” “our,” “we” or the “Company”) is a Minnesota corporation organized in 1969 that operates directly and through its subsidiaries located in the United States (U.S.) and the United Kingdom (U.K.). CSI is principally engaged in operations through its subsidiaries Transition Networks, Inc. (“Transition Networks” or “Transition”), U.K.-based Net2Edge Limited (“Net2Edge”), JDL Technologies, Inc. (“JDL Technologies”or “JDL”), and Ecessa Corporation (“Ecessa”). During the second quarter of 2020, following the May 2020 acquisition of Ecessa and the consolidation of operations within the Transition Networks and Net2Edge divisions, the Company realigned its business operations. Following this realignment, the Company now classifies its business into two segments: (1) the Electronics & Software segment (consisting of Transition Networks and Net2Edge) which (i) manufactures and sells solutions that provide actionable intelligence, power and connectivity at the edge of networks through Power over Ethernet (“PoE”) products, software and services as well as traditional products such as media converters, network adapters and other connectivity products and (ii) designs, develops, and sells edge network access products, TDM (time-division multiplexing) over IP and other circuit emulation solutions, along with specialized cloud-based software solutions, primarily within the telecommunications market; and (2) the Services and Support segment (consisting of JDL and Ecessa), which (i) provides technology solutions including virtualization, managed services, wired and wireless network design and implementation, and hybrid cloud infrastructure and deployment and (ii) designs, develops, and sells SD-WAN (software-designed wide-area network) solutions.   Non-allocated general and administrative expenses are separately accounted for as “Other” in the Company’s segment reporting. Intersegment revenues are eliminated upon consolidation.  Financial Statement Presentation  The condensed consolidated balance sheets and condensed consolidated statement of changes in stockholders’ equity as of June 30, 2020 and the related condensed consolidated statements of income (loss) and comprehensive income (loss), and the condensed consolidated statements of cash flows for the periods ended June 30, 2020 and 2019 have been prepared by Company management . In the opinion of management, all adjustments (which include only normal recurring adjustments, except where noted) necessary to present fairly the financial position, results of operations, and cash flows at June 30, 2020 and 2019 and for the periods then ended have been made.  Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with generally accepted accounting principles in the United States of America have been condensed or omitted. We recommend these condensed consolidated financial statements be read in conjunction with the financial statements and notes thereto included in the Company’s December 31, 2019 Annual Report to Shareholders on Form 10-K. The results of operations for the period ended June 30, 2020 are not necessarily indicative of operating results for the entire year.  The presentation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the balance sheet date, and the reported amounts of revenues and expenses during the reporting period. The estimates and assumptions used in the accompanying condensed consolidated financial statements are based upon management’s evaluation of the relevant facts and circumstances as of the time of the financial statements. Actual results could differ from those estimates.  Except to the extent updated or described below, the significant accounting policies set forth in Note 1 to the consolidated financial statements in the Company's Annual Report on Form 10-K for the year ended December 31, 2019 , appropriately represent, in all material respects, the current status of accounting policies, and are incorporated herein by reference.  Accumulated Other Comprehensive Loss  The components of accumulated other comprehensive loss, net of tax, are as follows:       Foreign Currency Translation Unrealized gain (loss) on securities Accumulated Other Comprehensive Loss  December 31, 2019 $ (709,000) $ 11,000 $ (698,000)   Net current period change (141,000) 10,000 (131,000)   June 30, 2020 $ (850,000) $ 21,000 $ (829,000) 

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2020
Revenue Recognition [Abstract]
Revenue Recognition	NOTE 2 – REVENUE RECOGNITION  Electronics & Software  The Company has determined that the revenue recognition for its Electronics & Software segment occurs upon delivery of the Company’s connectivity infrastructure and data transmission products. To determine when revenue should be recognized, it is important to determine when the transfer of control has occurred. The Company has determined that control transfers for these products upon shipment or delivery to the customer, in accordance with the agreed upon shipping terms. As such, the timing of revenue recognition occurs at a specific point in time.  Services & Support  The Company has determined that the following performance obligations identified in its Services & Support segment are transferred over time: managed services and professional services (time and materials (“T&M”) and fixed price) as well as services under maintenance and service contracts. The managed services performance obligation is a bundled solution consisting of a series of distinct services that are substantially the same and that have the same pattern of transfer to the customer and are therefore recognized evenly over the term of the contract. T&M professional services arrangements are recognized over time with an input method based on hours expended towards satisfying the performance obligation. Fixed price professional service arrangements under a relatively longer-term service will also be recognized over time with an input method based on hours expended. Maintenance and service contracts are recognized evenly over the life of the contract.  The Company has also identified the following performance obligations within its Services & Support segment that are recognized at a point in time which include resale of third-party hardware and software, installation, arranging for another party to transfer services to the customer, and certain professional services. The resale of third-party hardware and software is recognized at a point in time, when the goods are shipped or delivered to the customer’s location, in accordance with the shipping terms. Installation services are recognized at a point in time when the services are completed. The service the Company provides to arrange for another party to transfer services to the customer is satisfied at a point in time after the Company has transferred control when the service is first available to the customer by the third-party vendor. The Company reports revenue from these third-party services on a net basis in its financial statements. Depending on the nature of the service, certain professional services transfer control at a point in time. The Company evaluates these circumstances on a case by case basis to determine if revenue should be recognized over time or at a point in time.  Disaggregation of revenue  Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that best reflects the consideration we expect to receive in exchange for those goods or services. In accordance with ASC 606-10-50-5, the following tables present how we disaggregate our revenues, which is different for each segment. During the second quarter of 2020, following the May 2020 acquisition of Ecessa and the consolidation of operations within the Transition Networks and Net2Edge divisions, the Company realigned its business operations. Following this realignment, the Company now classifies its businesses into two segments, Electronics & Software and Services & Support. To conform to the presentation, the Company has reclassified the 2019 information within its financial statements in this Form 10-Q.  For the Electronics & Software segment, we analyze revenue by region and product group,which is as follows for the three and six months ended June 30, 2020 and 2019 :      Electronics & Software Sales by Region  Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019  North America $ 6,898,000 $ 8,055,000 $ 14,346,000 $ 14,969,000  International 1,389,000 1,881,000 2,477,000 4,258,000  $ 8,287,000 $ 9,936,000 $ 16,823,000 $ 19,227,000        Electronics & Software Sales by Product Group  Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019  Intelligent edge solutions $ 3,023,000 $ 2,747,000 $ 6,377,000 $ 5,055,000  Traditional products 5,264,000 7,189,000 10,446,000 14,172,000  $ 8,287,000 $ 9,936,000 $ 16,823,000 $ 19,227,000    For the Services & Support segment, we analyze revenue by customer group and type, which is as follows for the three and six months ended June 30, 2020 and 2019 :     Services & Support Revenue by Customer Group  Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019  Education $ 626,000 $ 295,000 $ 719,000 $ 1,768,000  Healthcare 240,000 183,000 430,000 376,000  Financial and other commercial clients 474,000 291,000 817,000 550,000  CSI IT operations 185,000 182,000 386,000 466,000  $ 1,525,000 $ 951,000 $ 2,352,000 $ 3,160,000       Services & Support Revenue by Type  Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019  Project & product revenue $ 746,000 $ 355,000 $ 886,000 $ 1,994,000  Services & support revenue 779,000 596,000 1,466,000 1,166,000  $ 1,525,000 $ 951,000 $ 2,352,000 $ 3,160,000  

Discontinued Operations

Discontinued Operations	6 Months Ended
	Jun. 30, 2020
Discontinued Operations [Abstract]
Discontinued Operations	NOTE 3 – DISCONTINUED OPERATIONS  On March 11, 2020, the Company sold the remainder of its Suttle business lines, including the SoHo, MediaMAX, and SpeedStar brands and inventory as well as working capital, certain capital equipment, intellectual property, and customer relationships to Oldcastle Infrastructure, Inc. (“Oldcastle”) for $8,000,000 , with a working capital adjustment 90 days after close. Oldcastle will operate the majority of the acquired Suttle business through its wholly-owned subsidiary, Primex Technologies, Inc. The Company received proceeds of $ 8,190,000 and recorded a gain on the sale of $ 2,039,000 in the first six months of 2020.  Concurrent with the closing of the transaction, the Company and Oldcastle entered into a Transition Services Agreement (“TSA”) under which Suttle agreed to continue to manufacture products for Oldcastle for up to six months, to ensure seamless supply and quality assurance to the existing customer base. Concurrently with the closing of the transaction and the TSA, the Company and Oldcastle also entered into a lease agreement under which Oldcastle agreed to lease two buildings in Hector, Minnesota, where Suttle had conducted operations. Base rents under the lease agreement range from $6,970 to $7,180 per month. The parties intend to work with Suttle’s existing suppliers to ensure continued support and delivery of all Suttle products during the transition period. The associated assets and liabilities related to this sale were classified as held for sale at December 31, 2019. The presentation of discontinued operations has been retrospectively applied to all prior periods presented.  The assets and liabilities of the discontinued operations that are classified as held for sale are as follows:     June 30, 2020 December 31, 2019   Trade accounts receivable $ - $ 2,235,000  Inventories - 3,009,000  Other current assets - 93,000  Total current assets $ - $ 5,337,000    Property, plant, and equipment $ - $ 883,000  Total noncurrent assets $ - $ 883,000   Total assets held for sale $ - $ 6,220,000    Accounts payable $ - $ 1,111,000  Other accrued liabilities - 82,000  Total liabilities held for sale $ - $ 1,193,000   The financial results of the discontinued operations are as follows:      Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019   Sales $ - $ 4,696,000 $ 3,025,000 $ 10,203,000  Cost of sales - 3,228,000 2,050,000 6,935,000  Selling, general and administrative expenses - 602,000 500,000 1,401,000  Restructuring expenses 445,000 - 764,000 -  Loss (gain) on sale of assets 122,000 (2,986,000) (2,039,000) (2,986,000)  Other expense - 10,000 - -  Operating (loss) income before income taxes (567,000) 3,842,000 1,750,000 4,853,000  Income tax expense (benefit) 2,000 19,000 5,000 (3,000)  (Loss) income from discontinued operations $ (569,000) $ 3,823,000 $ 1,745,000 $ 4,856,000  During the six months ended June 30, 2020 , the Company re corded $ 764,000 in restructuring expense. This consisted of severance and related benefits costs due to the sale of the remainder of Suttle’s business lines and the closure of the plant once the TSA is completed. We expect 2020 and 2021 restructuring costs to be $ 1,300,000 including remaining severance and other shut down costs. Any remaining assets will be held for sale at the completion of the TSA. The Company paid $ 122,000 in restructuring charges during the first six months of 2020 and had $ 642,000 in restructu ring accruals recorded in accrued compensation and benefits at June 30, 2020 that are expected to be paid during 2020 and 2021.

Cash Equivalents and Investment

Cash Equivalents and Investments	6 Months Ended
	Jun. 30, 2020
Cash Equivalents and Investments [Abstract]
Cash Equivalents and Investments	NOTE 4 – CASH EQUIVALENTS AND INVESTMENTS  The following tables show the Company’s cash equivalents and available –for-sale securities’ amortized cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category recorded as cash and cash equivalents or short- and long-term investments as of June 30, 2020 and December 31, 2019 :     June 30, 2020  Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Short-Term Investments Long-Term Investments   Cash equivalents:  Money Market funds $ 18,521,000 $ - $ - $ 18,521,000 $ 18,521,000 $ - $ -  Subtotal 18,521,000 - - 18,521,000 18,521,000 - -   Investments:  Commercial Paper 3,740,000 8,000 - 3,748,000 - 3,748,000 -  Convertible Debt 355,000 - - 355,000 - - 355,000  Subtotal 4,095,000 8,000 - 4,103,000 - 3,748,000 355,000    Total $ 22,616,000 $ 8,000 $ - $ 22,624,000 $ 18,521,000 $ 3,748,000 $ 355,000         December 31, 2019  Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Short-Term Investments Long-Term Investments   Cash equivalents:  Money Market funds $ 8,761,000 $ - $ - $ 8,761,000 $ 8,761,000 $ - $ -  Subtotal 8,761,000 - - 8,761,000 8,761,000 - -   Investments:  Commercial Paper 8,695,000 - (1,000) 8,694,000 - 8,694,000 -  Corporate Notes/Bonds 756,000 - - 756,000 - 756,000 -  Convertible Debt 250,000 - - 250,000 - - 250,000  Subtotal 9,701,000 - (1,000) 9,700,000 - 9,450,000 250,000    Total $ 18,462,000 $ - $ (1,000) $ 18,461,000 $ 8,761,000 $ 9,450,000 $ 250,000  The following table summarizes the estimated fair value of our investments, designated as available-for-sale and classified by the contractual maturity date of the securities as of June 30, 2020 :    Amortized Cost Estimated Market Value   Due within one year $ 3,740,000 $ 3,748,000  Due after one year through five years 355,000 355,000  $ 4,095,000 $ 4,103,000 The Company did no t recognize any gross realized gains or losses during either of the three or six month periods ending June 30, 2020 and 2019 , respectively. If the Company had realized gains or losses, they would be included within investment and other income in the accompanying condensed consolidated statement of income and comprehensive income. In April 2020, the Company made an $899,000 investment in the common stock of Quortus Ltd., a UK-based company that provides virtual core network software for Private LTE solutions for critical and secure communications. The Company believes this investment is important for its Electronics & Software segment because this business segment has begun exploring partnering with Quortus to integrate the Quortus Private LTE core in existing and new products for th at segment ’s federal business, network extensions, and private networks for enterprises. The Company’s investment represents less than 10% of the outstanding equity of Quortus Ltd. Investments in common stock or in-substance common stock of entities in which the Company does not have the ability to exercise significant influence over the operating and financial matters of the entity are accounted for using the cost method. Investments in companies that the Company does not control, which are not in the form of common stock or in-substance common stock, are also accounted for using the cost method .

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2020
Stock-Based Compensation [Abstract]
Stock-Based Compensation	NOTE 5 - STOCK-BASED COMPENSATION  Employee Stock Purchase Plan  Under the Company’s Employee Stock Purchase Plan (“ESPP”), employees are able to acquire shares of common stock at 85 % of the price at the end of each current quarterly plan term. The most recent term ended June 30, 2020 . The ESPP is considered compensatory under current Internal Revenue Service rules. At June 30, 2020 , after giving effect to the shares issued as of that date, 81,053 shares remain available for future issuance under the ESPP.  2011 Executive Incentive Compensation Plan  On March 28, 2011 the Board adopted and on May 19, 2011 the Company’s shareholders approved the Company’s 2011 Executive Incentive Compensation Plan (“2011 Incentive Plan”). The 2011 Incentive Plan authorizes incentive awards to officers, key employees and non-employee directors in the form of options (incentive and non-qualified), stock appreciation rights, restricted stock, restricted stock units, performance stock units (“deferred stock”), performance cash units, and other awards in stock, cash, or a combination of stock and cash. The 2011 Incentive Plan, as amended, allows the issuance of up to 2,500,000 shares of common stock.  At June 30, 2020 , 413,664 shares have been issued under the 2011 Incentive Plan, 1,519,088 shares are subject to currently outstanding options, deferred stock awards, and unvested restricted stock units, and 567,248 shares are eligible for grant under future awards.  Changes in Stock Options Outstanding  The following table summarizes changes in the number of outstanding stock options under the 2011 Incentive Plan over the period December 31, 2019 to June 30, 2020 :     Weighted average  Weighted average remaining  exercise price contractual term  Options per share in years  Outstanding – December 31, 2019 1,130,472 $ 7.28 3.48  Awarded 133,801 5.25  Exercised (2,000) 2.64  Forfeited (46,369) 11.11  Outstanding – June 30, 2020 1,215,904 6.92 3.52   Exercisable at June 30, 2020 956,317 $ 7.59 2.90  Expected to vest June 30, 2020 1,215,904 6.92 3.52  The aggregate intrinsic value of all options (the amount by which the market price of the stock on the last day of the period exceeded the market price of the stock on the date of grant) outstanding at June 30, 2020 was $ 674,000 . The intrinsic value of all options exercised during the three months ended June 30, 2020 was $ 5,000 . Net cash proceeds from the exercise of all stock options were $ 0 in each of the three-month periods ended June 30, 2020 and 2019 .  Changes in Deferred Stock Outstanding  The following table summarizes the changes in the number of deferred stock shares under the 2011 Incentive Plan over the period December 31, 2019 to June 30, 2020 :     Weighted Average  Grant Date  Shares Fair Value  Outstanding – December 31, 2019 321,227 $ 3.37  Granted 89,131 5.39  Vested (46,584) 2.64  Forfeited (60,590) 4.40  Outstanding – June 30, 2020 303,184 3.87  Compensation Expense  Share-based compensation expense recognized for the six-months ended June 30, 2020 was $ 177,000 before income taxes and $ 140,000 after income taxes. Share-based compensation expense recognized for the six-months ended June 30 , 2019 was $ 189,000 before income taxes and $ 149,000 after income taxes. Unrecognized compensation expense for the Company’s plans was $ 833,000 at June 30, 2020 and is expected to be recognized over a weighted-average period of 2.6 years. Share-based compensation expense is recorded as a part of selling, general and administrative expenses.

Inventories

Inventories	6 Months Ended
	Jun. 30, 2020
Inventories [Abstract]
Inventories	NOTE 6 - INVENTORIES  Inventories summarized below are priced at the lower of first-in, first-out cost or net realizable value:     June 30 December 31  2020 2019  Finished goods $ 8,741,000 $ 6,728,000  Raw and processed materials 1,201,000 1,803,000  $ 9,942,000 $ 8,531,000

Acquisition

Acquisition	6 Months Ended
	Jun. 30, 2020
Acquisition [Abstract]
Acquisition	NOTE 7 – ACQUISITION  On May 14, 2020, in a reverse triangular merger, the Company completed the acquisition of 100% of Ecessa Corporation (“Ecessa”), based in Plymouth, Minnesota . The purchase price w as $ 4,650,000 , with cash acquired totaling $ 666,000 . The purchase price includes initial consideration of $ 4,666,000 and $ (16,000) in working capital adjustments.  The estimated assets and liabilities of Ecessa are recorded in the condensed consolidated balance sheet within the Services & Support segment at June 30, 2020. T he preliminary purchase price allocation was based on estimates of the fair value of assets acquired and liabilities assumed, and included total assets of $ 5,249,000 , including estimated goodwill of $ 411,000 and estimated intangibles of $ 3,190,000 , and total liabilities of $ 599,000 . The fair value of acquired identifiable intangible assets of $3,190,000 is provisional depending on the final valuations for those assets. All balances recorded are estimated amounts and the Company expects to finalize the purchase price allocation during the third quarter of 2020 as the valuation of identifiable assets and liabilities is completed. The pro forma impact of Ecessa was not significant to the Company’s results for the three and six months ended June 30, 2020.

Contingencies

Contingencies	6 Months Ended
	Jun. 30, 2020
General Commitments and Contingencies [Abstract]
Contingencies	NOTE 8 – CONTINGENCIES  In the ordinary course of business, the Company is exposed to legal actions and claims and incurs costs to defend against these actions and claims. Company management is not aware of any outstanding or pending legal actions or claims that could materially affect the Company’s financial position or results of operations. 

Debt

Debt	6 Months Ended
	Jun. 30, 2020
Debt [Abstract]
Debt	NOTE 9 – DEBT  Line of Credit The Company has a $15,000,000 line of credit from Wells Fargo Bank, N.A. The Company had no outstanding borrowings against the line of credit at June 30, 2020 or December 31, 2019 . Due to the revolving nature of loans under our credit facility, additional borrowings and periodic repayments and re-borrowings may be made until the maturity date. The total amount available for borrowings under our credit facility at June 30, 2020 was $ 4,052,000 , based on the borrowing base calculation. Interest on borrowings on the credit line is at LIBOR plus 2.0% ( 2.2% at June 30, 2020 ). The credit agreement expires August 12, 2021 and is secured by assets of the Company. Our credit agreement contains financial covenants including a minimum liquidity balance of $10,000,000 . Liquidity is calculated as the sum of unrestricted cash, marketable securities and the availability on the line of credit. The Company was in compliance with its financial covenants at June 30, 2020 .

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Income Taxes [Abstract]
Income Taxes	NOTE 10 – INCOME TAXES In the preparation of the Company’s consolidated financial statements, management calculates income taxes based upon the estimated effective rate applicable to operating results for the full fiscal year. This includes estimating the current tax liability as well as assessing differences resulting from different treatment of items for tax and book accounting purposes. These differences result in deferred tax assets and liabilities, which are recorded on the balance sheet. Management analyzes these assets and liabilities regularly and assesses the likelihood that deferred tax assets will be recovered from future taxable income. At June 30, 2020 there was $ 111,000 of net uncertain tax benefit positions that would reduce the effective income tax rate if recognized. The Company records interest and penalties related to income taxes as income tax expense in the condensed consolidated statements of income (loss) and comprehensive income (loss).  The Company is subject to U.S. federal income tax as well as income tax of multiple state and foreign jurisdictions. The tax years 2016 - 2019 remain open to examination by the Internal Revenue Service and the years 2015 - 2019 remain open to examination by various state tax departments. The tax years from 2016 - 2018 remain open in Costa Rica. The Company’s effective income tax rate was 0.2% for the first six months of 2020 . The effective tax rate differs from the federal tax rate of 21 % due to state income taxes, foreign tax rate differences, foreign losses not deductible for U.S. income tax purposes, the effect of uncertain income tax positions, stock compensation windfalls and changes in valuation allowances related to deferred tax assets. The foreign operating losses may ultimately be deductible in the countries in which they occurred; however, the Company has not recorded a deferred tax asset for these losses due to uncertainty regarding the eventual realization of the benefit. The effect of the foreign operations was an overall rate decrease of approximately (31.8%) for the six months ended June 30, 2020 . There were no additional uncertain tax positions identified in the first half of 2020 . The Company's effective income tax rate for the six months ended June 30 , 2019 was 0.9% , and differed from the federal tax rate due to state income taxes, foreign tax rate differences, foreign losses not deductible for U.S. income tax purposes, changes in the reserve for uncertain income tax positions, provisions for interest charges for uncertain income tax positions, stock compensation shortfalls and changes in valuation allowances related to deferred tax assets.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2020
Segment Information [Abstract]
Segment Information	NOTE 11 – SEGMENT INFORMATION  Following the acquisition of Ecessa during the quarter and the merging of certain operations, the Company classifies its remaining businesses into two segments as follows:  · Electronics & Software: designs, develops and sells Intelligent Edge solutions that provide connectivity and power through PoE products and actionable intelligence to end devices in an IoT ecosystem through embedded and cloud-based management software. In addition, this segment continues to generate revenue from its traditional products consisting of, media converters, NICs, and Ethernet switches that offer the ability to affordably integrate the benefits of fiber optics into any data network; and · Services & Support: provides technology solutions that address prevalent IT challenges, including virtualization and cloud solutions, managed services, wired and wireless network design and implementation, and converged infrastructure configuration and deployment .  Management has chosen to organize the Company and disclose reportable segments based on our products and services. Intersegment revenues are eliminated upon consolidation. “Other” includes non-allocated corporate overhead costs. As a result of our treatment of Suttle as discontinued operations, “Other” includes amounts previously allocated to Suttle that do not meet the criteria to be included in income from discontinued operations. The Company has reclassified its 2019 financial statements to conform to its new segment reporting.  Information concerning the Company’s continuing operations in these two segments for the three and six-month periods ended June 30, 2020 and 2019 are as follows:      Electronics & Services & Intersegment  Software Support Other Eliminations Total  Three Months Ended June 30, 2020  Sales $ 8,287,000 $ 1,525,000 $ - $ (184,000) $ 9,628,000  Cost of sales 5,192,000 982,000 - (26,000) 6,148,000  Gross profit 3,095,000 543,000 - (158,000) 3,480,000  Selling, general and  administrative expenses 3,638,000 483,000 769,000 (158,000) 4,732,000  Acquisition costs - - 394,000 - 394,000  Operating (loss) income (543,000) 60,000 (1,163,000) - (1,646,000)  Other income 3,000 - 276,000 - 279,000  Income (loss) before income tax $ (540,000) $ 60,000 $ (887,000) $ - $ (1,367,000)   Depreciation and amortization $ 76,000 $ 19,000 $ 123,000 $ - $ 218,000   Capital expenditures $ 24,000 $ - $ 8,000 $ - $ 32,000   Assets $ 16,825,000 $ 6,569,000 $ 33,984,000 $ (27,000) $ 57,351,000       Electronics & Services & Intersegment  Software Support Other Eliminations Total  Three Months Ended June 30, 2019  Sales $ 9,936,000 $ 951,000 $ - $ (182,000) $ 10,705,000  Cost of sales 5,775,000 700,000 - (11,000) 6,464,000  Gross profit 4,161,000 251,000 - (171,000) 4,241,000  Selling, general and  administrative expenses 4,300,000 331,000 910,000 (171,000) 5,370,000  Operating loss (139,000) (80,000) (910,000) - (1,129,000)  Other income 2,000 - 65,000 - 67,000  Loss before income tax $ (137,000) $ (80,000) $ (845,000) $ - $ (1,062,000)   Depreciation and amortization $ 89,000 $ 26,000 $ 147,000 $ - $ 262,000   Capital expenditures $ 5,000 $ - $ 28,000 $ - $ 33,000   Assets $ 19,421,000 $ 1,658,000 $ 33,024,000 $ (27,000) $ 54,076,000             Electronics & Services & Intersegment  Software Support Other Eliminations Total  Six Months Ended June 30, 2020  Sales $ 16,823,000 $ 2,352,000 $ - $ (384,000) $ 18,791,000  Cost of sales 9,999,000 1,602,000 - (27,000) 11,574,000  Gross profit 6,824,000 750,000 - (357,000) 7,217,000  Selling, general and  administrative expenses 7,535,000 811,000 1,683,000 (357,000) 9,672,000  Acquisition costs - - 415,000 - 415,000  Operating loss (711,000) (61,000) (2,098,000) - (2,870,000)  Other income 17,000 - 673,000 - 690,000  Loss before income tax $ (694,000) $ (61,000) $ (1,425,000) $ - $ (2,180,000)   Depreciation and amortization $ 147,000 $ 32,000 $ 251,000 $ - $ 430,000   Capital expenditures $ 68,000 $ 1,000 $ 20,000 $ - $ 89,000            Electronics & Services & Intersegment  Software Support Other Eliminations Total  Six Months Ended June 30, 2019  Sales $ 19,227,000 $ 3,160,000 $ - $ (466,000) $ 21,921,000  Cost of sales 11,139,000 2,040,000 - (125,000) 13,054,000  Gross profit 8,088,000 1,120,000 - (341,000) 8,867,000  Selling, general and  administrative expenses 8,696,000 707,000 1,756,000 (341,000) 10,818,000  Operating (loss) income (608,000) 413,000 (1,756,000) - (1,951,000)  Other income (expense) 1,000 (10,000) 102,000 - 93,000  (Loss) income before income tax $ (607,000) $ 403,000 $ (1,654,000) $ - $ (1,858,000)   Depreciation and amortization $ 188,000 $ 54,000 $ 299,000 $ - $ 541,000   Capital expenditures $ 12,000 $ 36,000 $ 195,000 $ - $ 243,000  

Net Income (Loss) Per Share

Net Income (Loss) Per Share	6 Months Ended
	Jun. 30, 2020
Net Income (Loss) Per Share [Abstract]
Net Income (Loss) Per Share	NOTE 12 – NET INCOME (LOSS) PER SHARE  Basic net income (loss) per common share is based on the weighted average number of common shares outstanding during each period and year. Diluted net income per common share takes into effect the dilutive effect of potential common shares outstanding. The Company’s only potential common shares outstanding are stock options and shares associated with the long-term incentive compensation plans, which resulted in no dilutive effect for the three and six months ended June 30, 2020 . The dilutive effect for the three and six-month periods ended June 30, 2019 was 2,530 and 0 shares, respectively. The Company calculates the dilutive effect of outstanding options using the treasury stock method. Due to the net losses in the first three and six months of 2020, there was no dilutive impact from stock options or unvested shares. Options totaling 614,114 and 634,114 were excluded from the calculation of diluted earnings per share for the three and six months ended June 30, 2020 , respectively because the exercise price was greater than the average market price of common stock during the period and deferred stock awards totaling 117,688 shares would not have been included for the three and six months ended June 30, 2020 , because of unmet performance conditions. Options totaling 1,173,365 and 1,223,365 were excluded from the calculation of diluted earnings per share for the three and six months ended June 30, 2019, respectively because the exercise price was greater than the average market price of common stock during the period and deferred stock awards totaling 207,573 shares would not have been included for the three and six months ended June 30, 2019, because of unmet performance conditions.

Fair Value Measurements

Fair Value Measurements	6 Months Ended
	Jun. 30, 2020
Fair Value Measurements [Abstract]
Fair Value Measurements	NOTE 13 – FAIR VALUE MEASUREMENTS The accounting guidance establishes a valuation hierarchy for disclosure of the inputs to valuation used to measure fair value. This hierarchy prioritizes the inputs into three broad levels as follows: Level 1 – Observable inputs that reflect unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access at the measurement date. Level 2 – Observable inputs such as quoted prices for similar instruments and quoted prices in markets that are not active, and inputs that are directly observable or can be corroborated by observable market data. The types of assets and liabilities included in Level 2 are typically either comparable to actively traded securities or contracts, such as treasury securities with pricing interpolated from recent trades of similar securities, or priced with models using highly observable inputs, such as commodity options priced using observable forward prices and volatilities. Level 3 – Significant inputs to pricing that have little or no observability as of the reporting date. The types of assets and liabilities included in Level 3 are those with inputs requiring significant management judgment or estimation, such as the complex and subjective models and forecasts used to determine the fair value of financial instruments. Financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2020 and December 31, 2019 , are summarized below:     June 30, 2020   Level 1 Level 2 Level 3 Total Fair Value   Cash equivalents:  Money Market Funds $ 18,521,000 $ - $ - $ 18,521,000  Subtotal 18,521,000 - - 18,521,000   Short-term investments:  Commercial Paper - 3,748,000 - 3,748,000  Subtotal - 3,748,000 - 3,748,000   Long-term investments:  Convertible debt - - 355,000 355,000  Subtotal - - 355,000 355,000    Total $ 18,521,000 $ 3,748,000 $ 355,000 $ 22,624,000      December 31, 2019   Level 1 Level 2 Level 3 Total Fair Value   Cash equivalents:  Money Market Funds $ 8,761,000 $ - $ - $ 8,761,000  Subtotal 8,761,000 - - 8,761,000   Short-term investments:  Commercial Paper - 8,694,000 - 8,694,000  Corporate Notes/Bonds - 756,000 - 756,000  Subtotal - 9,450,000 - 9,450,000   Long-term investments:  Convertible debt - - 250,000 250,000  Subtotal - - 250,000 250,000   Total $ 8,761,000 $ 9,450,000 $ 250,000 $ 18,461,000  We record transfers between levels of the fair value hierarchy, if necessary, at the end of the reporting period. There were no transfers between levels during the three and six months ended June 30, 2020 .

General Commitments

General Commitments	6 Months Ended
	Jun. 30, 2020
General Commitments and Contingencies [Abstract]
General Commitments	NOTE 14 – GENERAL COMMITMENTS  On August 2, 2018, the Company entered into a purchase agreement with Launch Properties, LLC for the sale of the Company’s building located at 10900 Red Circle Drive, Minnetonka, MN for $10,000,000 . The building currently includes the Company’s corporate administrative offices, as well as some operations for Transition Networks and JDL Technologies. The closing of the transaction was subject to several closing conditions, including the buyer’s ability to complete due diligence within 180 days and the buyer’s ability to obtain regulatory approval for its intended use of the property. The original due diligence period lapsed on January 29, 2019, and through two amendments to the original agreement, the due diligence period was extended to June 30, 2020, and the buyer met certain required obligations under these amendments. One of the conditions of the agreement and amendments included non-refundable deposits into an escrow account. As of June 30, 2020 , the balance in this escrow account was $225,000 and is included within restricted cash within the condensed consolidated balance sheet. On July 28, 2020, the parties executed an agreement terminating the original purchase agreement. The $225,000 in earnest money in the escrow account was transferred to the Company. 

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2020
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	 NOTE 15 – RECENT ACCOUNTING PRONOUNCEMENTS  In December 2019, the FASB issued ASU 2019-12, “Simplifying the Accounting for Income Taxes”, which, as part of its Simplification Initiative to reduce the cost and complexity in accounting for income taxes, removes certain exceptions related to the approach for intra-period tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. ASU 2019-12 also amends other aspects of the guidance to help simplify and promote consistent application of GAAP. The guidance is effective for interim and annual periods beginning after December 15, 2020, with early adoption permitted. The Company adopted this standard during the first quarter of 2020 with an immaterial impact to our consolidated financial statements.  In June 2016, FASB issued ASU 2016-13, "Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments." The amendments in this update replace the incurred loss impairment methodology in current U.S. GAAP with a methodology that reflects expected credit losses. This ASU is intended to provide financial statement users with more decision-useful information about the expected credit losses and is effective for annual periods and interim periods for those annual periods beginning after December 15, 2022, which for us is the first quarter ending March 31, 2023. Entities may early adopt beginning after December 15, 2018. We are currently evaluating the impact of the adoption of ASU 2016-13 on our consolidated financial statements. 

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	NOTE 16 – SUBSEQUENT EVENTS  The Company has evaluated subsequent events through the date of this filing. Other than the termination of the purchase agreement in Note 14, we do not believe there are any material subsequent events other than those disclosed in the footnotes to these financial statements that require further disclosure.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policy)	6 Months Ended
	Jun. 30, 2020
Summary of Significant Accounting Policies [Abstract]
Description of Business	Description of Business  Communications Systems, Inc. (herein collectively referred to as “CSI,” “our,” “we” or the “Company”) is a Minnesota corporation organized in 1969 that operates directly and through its subsidiaries located in the United States (U.S.) and the United Kingdom (U.K.). CSI is principally engaged in operations through its subsidiaries Transition Networks, Inc. (“Transition Networks” or “Transition”), U.K.-based Net2Edge Limited (“Net2Edge”), JDL Technologies, Inc. (“JDL Technologies”or “JDL”), and Ecessa Corporation (“Ecessa”). During the second quarter of 2020, following the May 2020 acquisition of Ecessa and the consolidation of operations within the Transition Networks and Net2Edge divisions, the Company realigned its business operations. Following this realignment, the Company now classifies its business into two segments: (1) the Electronics & Software segment (consisting of Transition Networks and Net2Edge) which (i) manufactures and sells solutions that provide actionable intelligence, power and connectivity at the edge of networks through Power over Ethernet (“PoE”) products, software and services as well as traditional products such as media converters, network adapters and other connectivity products and (ii) designs, develops, and sells edge network access products, TDM (time-division multiplexing) over IP and other circuit emulation solutions, along with specialized cloud-based software solutions, primarily within the telecommunications market; and (2) the Services and Support segment (consisting of JDL and Ecessa), which (i) provides technology solutions including virtualization, managed services, wired and wireless network design and implementation, and hybrid cloud infrastructure and deployment and (ii) designs, develops, and sells SD-WAN (software-designed wide-area network) solutions.   Non-allocated general and administrative expenses are separately accounted for as “Other” in the Company’s segment reporting. Intersegment revenues are eliminated upon consolidation.
Financial Statement Presentation	Financial Statement Presentation  The condensed consolidated balance sheets and condensed consolidated statement of changes in stockholders’ equity as of June 30, 2020 and the related condensed consolidated statements of income (loss) and comprehensive income (loss), and the condensed consolidated statements of cash flows for the periods ended June 30, 2020 and 2019 have been prepared by Company management . In the opinion of management, all adjustments (which include only normal recurring adjustments, except where noted) necessary to present fairly the financial position, results of operations, and cash flows at June 30, 2020 and 2019 and for the periods then ended have been made.  Certain information and footnote disclosures normally included in consolidated financial statements prepared in accordance with generally accepted accounting principles in the United States of America have been condensed or omitted. We recommend these condensed consolidated financial statements be read in conjunction with the financial statements and notes thereto included in the Company’s December 31, 2019 Annual Report to Shareholders on Form 10-K. The results of operations for the period ended June 30, 2020 are not necessarily indicative of operating results for the entire year.  The presentation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the balance sheet date, and the reported amounts of revenues and expenses during the reporting period. The estimates and assumptions used in the accompanying condensed consolidated financial statements are based upon management’s evaluation of the relevant facts and circumstances as of the time of the financial statements. Actual results could differ from those estimates.  Except to the extent updated or described below, the significant accounting policies set forth in Note 1 to the consolidated financial statements in the Company's Annual Report on Form 10-K for the year ended December 31, 2019 , appropriately represent, in all material respects, the current status of accounting policies, and are incorporated herein by reference.
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss  The components of accumulated other comprehensive loss, net of tax, are as follows:       Foreign Currency Translation Unrealized gain (loss) on securities Accumulated Other Comprehensive Loss  December 31, 2019 $ (709,000) $ 11,000 $ (698,000)   Net current period change (141,000) 10,000 (131,000)   June 30, 2020 $ (850,000) $ 21,000 $ (829,000) 

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2020
Summary of Significant Accounting Policies [Abstract]
Components of Accumulated Other Comprehensive Loss	    Foreign Currency Translation Unrealized gain (loss) on securities Accumulated Other Comprehensive Loss  December 31, 2019 $ (709,000) $ 11,000 $ (698,000)   Net current period change (141,000) 10,000 (131,000)   June 30, 2020 $ (850,000) $ 21,000 $ (829,000) 

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2020
Revenue Recognition [Abstract]
Schedule of Disaggregation of Revenues	For the Electronics & Software segment, we analyze revenue by region and product group,which is as follows for the three and six months ended June 30, 2020 and 2019 :      Electronics & Software Sales by Region  Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019  North America $ 6,898,000 $ 8,055,000 $ 14,346,000 $ 14,969,000  International 1,389,000 1,881,000 2,477,000 4,258,000  $ 8,287,000 $ 9,936,000 $ 16,823,000 $ 19,227,000        Electronics & Software Sales by Product Group  Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019  Intelligent edge solutions $ 3,023,000 $ 2,747,000 $ 6,377,000 $ 5,055,000  Traditional products 5,264,000 7,189,000 10,446,000 14,172,000  $ 8,287,000 $ 9,936,000 $ 16,823,000 $ 19,227,000    For the Services & Support segment, we analyze revenue by customer group and type, which is as follows for the three and six months ended June 30, 2020 and 2019 :     Services & Support Revenue by Customer Group  Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019  Education $ 626,000 $ 295,000 $ 719,000 $ 1,768,000  Healthcare 240,000 183,000 430,000 376,000  Financial and other commercial clients 474,000 291,000 817,000 550,000  CSI IT operations 185,000 182,000 386,000 466,000  $ 1,525,000 $ 951,000 $ 2,352,000 $ 3,160,000       Services & Support Revenue by Type  Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019  Project & product revenue $ 746,000 $ 355,000 $ 886,000 $ 1,994,000  Services & support revenue 779,000 596,000 1,466,000 1,166,000  $ 1,525,000 $ 951,000 $ 2,352,000 $ 3,160,000  

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Jun. 30, 2020
Discontinued Operations [Abstract]
Schedule of Discontinued Operations Assets and Liabilities Classified as Held-for-Sale	   June 30, 2020 December 31, 2019   Trade accounts receivable $ - $ 2,235,000  Inventories - 3,009,000  Other current assets - 93,000  Total current assets $ - $ 5,337,000    Property, plant, and equipment $ - $ 883,000  Total noncurrent assets $ - $ 883,000   Total assets held for sale $ - $ 6,220,000    Accounts payable $ - $ 1,111,000  Other accrued liabilities - 82,000  Total liabilities held for sale $ - $ 1,193,000  
Schedule of Financial Results of Discontinued Operations	   Three Months Ended June 30 Six Months Ended June 30  2020 2019 2020 2019   Sales $ - $ 4,696,000 $ 3,025,000 $ 10,203,000  Cost of sales - 3,228,000 2,050,000 6,935,000  Selling, general and administrative expenses - 602,000 500,000 1,401,000  Restructuring expenses 445,000 - 764,000 -  Loss (gain) on sale of assets 122,000 (2,986,000) (2,039,000) (2,986,000)  Other expense - 10,000 - -  Operating (loss) income before income taxes (567,000) 3,842,000 1,750,000 4,853,000  Income tax expense (benefit) 2,000 19,000 5,000 (3,000)  (Loss) income from discontinued operations $ (569,000) $ 3,823,000 $ 1,745,000 $ 4,856,000  

Cash Equivalents and Investme_2

Cash Equivalents and Investments (Tables)	6 Months Ended
	Jun. 30, 2020
Cash Equivalents and Investments [Abstract]
Schedule of Cash Equivalents and Available-for-Sale Securities	   June 30, 2020  Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Short-Term Investments Long-Term Investments   Cash equivalents:  Money Market funds $ 18,521,000 $ - $ - $ 18,521,000 $ 18,521,000 $ - $ -  Subtotal 18,521,000 - - 18,521,000 18,521,000 - -   Investments:  Commercial Paper 3,740,000 8,000 - 3,748,000 - 3,748,000 -  Convertible Debt 355,000 - - 355,000 - - 355,000  Subtotal 4,095,000 8,000 - 4,103,000 - 3,748,000 355,000    Total $ 22,616,000 $ 8,000 $ - $ 22,624,000 $ 18,521,000 $ 3,748,000 $ 355,000         December 31, 2019  Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Short-Term Investments Long-Term Investments   Cash equivalents:  Money Market funds $ 8,761,000 $ - $ - $ 8,761,000 $ 8,761,000 $ - $ -  Subtotal 8,761,000 - - 8,761,000 8,761,000 - -   Investments:  Commercial Paper 8,695,000 - (1,000) 8,694,000 - 8,694,000 -  Corporate Notes/Bonds 756,000 - - 756,000 - 756,000 -  Convertible Debt 250,000 - - 250,000 - - 250,000  Subtotal 9,701,000 - (1,000) 9,700,000 - 9,450,000 250,000    Total $ 18,462,000 $ - $ (1,000) $ 18,461,000 $ 8,761,000 $ 9,450,000 $ 250,000 
Schedule of Estimated Fair Value of Available-for-Sale Securities	   Amortized Cost Estimated Market Value   Due within one year $ 3,740,000 $ 3,748,000  Due after one year through five years 355,000 355,000  $ 4,095,000 $ 4,103,000 

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2020
Stock-Based Compensation [Abstract]
Schedule of Changes in Number of Outstanding Stock Options Under Director Plan, Stock Plan and 2011 Incentive Plan	   Weighted average  Weighted average remaining  exercise price contractual term  Options per share in years  Outstanding – December 31, 2019 1,130,472 $ 7.28 3.48  Awarded 133,801 5.25  Exercised (2,000) 2.64  Forfeited (46,369) 11.11  Outstanding – June 30, 2020 1,215,904 6.92 3.52   Exercisable at June 30, 2020 956,317 $ 7.59 2.90  Expected to vest June 30, 2020 1,215,904 6.92 3.52 
Schedule of Changes in the Number of Deferred Stock Shares Under the Incentive Plan	   Weighted Average  Grant Date  Shares Fair Value  Outstanding – December 31, 2019 321,227 $ 3.37  Granted 89,131 5.39  Vested (46,584) 2.64  Forfeited (60,590) 4.40  Outstanding – June 30, 2020 303,184 3.87 

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2020
Inventories [Abstract]
Schedule of Inventories	   June 30 December 31  2020 2019  Finished goods $ 8,741,000 $ 6,728,000  Raw and processed materials 1,201,000 1,803,000  $ 9,942,000 $ 8,531,000 

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2020
Segment Information [Abstract]
Schedule of Segment Information	    Electronics & Services & Intersegment  Software Support Other Eliminations Total  Three Months Ended June 30, 2020  Sales $ 8,287,000 $ 1,525,000 $ - $ (184,000) $ 9,628,000  Cost of sales 5,192,000 982,000 - (26,000) 6,148,000  Gross profit 3,095,000 543,000 - (158,000) 3,480,000  Selling, general and  administrative expenses 3,638,000 483,000 769,000 (158,000) 4,732,000  Acquisition costs - - 394,000 - 394,000  Operating (loss) income (543,000) 60,000 (1,163,000) - (1,646,000)  Other income 3,000 - 276,000 - 279,000  Income (loss) before income tax $ (540,000) $ 60,000 $ (887,000) $ - $ (1,367,000)   Depreciation and amortization $ 76,000 $ 19,000 $ 123,000 $ - $ 218,000   Capital expenditures $ 24,000 $ - $ 8,000 $ - $ 32,000   Assets $ 16,825,000 $ 6,569,000 $ 33,984,000 $ (27,000) $ 57,351,000       Electronics & Services & Intersegment  Software Support Other Eliminations Total  Three Months Ended June 30, 2019  Sales $ 9,936,000 $ 951,000 $ - $ (182,000) $ 10,705,000  Cost of sales 5,775,000 700,000 - (11,000) 6,464,000  Gross profit 4,161,000 251,000 - (171,000) 4,241,000  Selling, general and  administrative expenses 4,300,000 331,000 910,000 (171,000) 5,370,000  Operating loss (139,000) (80,000) (910,000) - (1,129,000)  Other income 2,000 - 65,000 - 67,000  Loss before income tax $ (137,000) $ (80,000) $ (845,000) $ - $ (1,062,000)   Depreciation and amortization $ 89,000 $ 26,000 $ 147,000 $ - $ 262,000   Capital expenditures $ 5,000 $ - $ 28,000 $ - $ 33,000   Assets $ 19,421,000 $ 1,658,000 $ 33,024,000 $ (27,000) $ 54,076,000             Electronics & Services & Intersegment  Software Support Other Eliminations Total  Six Months Ended June 30, 2020  Sales $ 16,823,000 $ 2,352,000 $ - $ (384,000) $ 18,791,000  Cost of sales 9,999,000 1,602,000 - (27,000) 11,574,000  Gross profit 6,824,000 750,000 - (357,000) 7,217,000  Selling, general and  administrative expenses 7,535,000 811,000 1,683,000 (357,000) 9,672,000  Acquisition costs - - 415,000 - 415,000  Operating loss (711,000) (61,000) (2,098,000) - (2,870,000)  Other income 17,000 - 673,000 - 690,000  Loss before income tax $ (694,000) $ (61,000) $ (1,425,000) $ - $ (2,180,000)   Depreciation and amortization $ 147,000 $ 32,000 $ 251,000 $ - $ 430,000   Capital expenditures $ 68,000 $ 1,000 $ 20,000 $ - $ 89,000            Electronics & Services & Intersegment  Software Support Other Eliminations Total  Six Months Ended June 30, 2019  Sales $ 19,227,000 $ 3,160,000 $ - $ (466,000) $ 21,921,000  Cost of sales 11,139,000 2,040,000 - (125,000) 13,054,000  Gross profit 8,088,000 1,120,000 - (341,000) 8,867,000  Selling, general and  administrative expenses 8,696,000 707,000 1,756,000 (341,000) 10,818,000  Operating (loss) income (608,000) 413,000 (1,756,000) - (1,951,000)  Other income (expense) 1,000 (10,000) 102,000 - 93,000  (Loss) income before income tax $ (607,000) $ 403,000 $ (1,654,000) $ - $ (1,858,000)   Depreciation and amortization $ 188,000 $ 54,000 $ 299,000 $ - $ 541,000   Capital expenditures $ 12,000 $ 36,000 $ 195,000 $ - $ 243,000 

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Measurements [Abstract]
Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis	   June 30, 2020   Level 1 Level 2 Level 3 Total Fair Value   Cash equivalents:  Money Market Funds $ 18,521,000 $ - $ - $ 18,521,000  Subtotal 18,521,000 - - 18,521,000   Short-term investments:  Commercial Paper - 3,748,000 - 3,748,000  Subtotal - 3,748,000 - 3,748,000   Long-term investments:  Convertible debt - - 355,000 355,000  Subtotal - - 355,000 355,000    Total $ 18,521,000 $ 3,748,000 $ 355,000 $ 22,624,000      December 31, 2019   Level 1 Level 2 Level 3 Total Fair Value   Cash equivalents:  Money Market Funds $ 8,761,000 $ - $ - $ 8,761,000  Subtotal 8,761,000 - - 8,761,000   Short-term investments:  Commercial Paper - 8,694,000 - 8,694,000  Corporate Notes/Bonds - 756,000 - 756,000  Subtotal - 9,450,000 - 9,450,000   Long-term investments:  Convertible debt - - 250,000 250,000  Subtotal - - 250,000 250,000   Total $ 8,761,000 $ 9,450,000 $ 250,000 $ 18,461,000 

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020segment
Summary of Significant Accounting Policies [Abstract]
Number of segments	2

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Components of Accumulated Other Comprehensive Loss) (Details)	6 Months Ended
	Jun. 30, 2020USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	$ 47,392,282
BALANCE	46,964,179
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	(709,000)
Net current period change	(141,000)
BALANCE	(850,000)
Unrealized gain (loss) on securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	11,000
Net current period change	10,000
BALANCE	21,000
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	(697,664)
Net current period change	(131,000)
BALANCE	$ (828,572)

Revenue Recognition (Narrative)

Revenue Recognition (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020segment
Revenue Recognition [Abstract]
Number of segments	2

Revenue Recognition (Schedule o

Revenue Recognition (Schedule of Disaggregation of Revenues) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 9,627,952	$ 10,704,467	$ 18,790,694	$ 21,920,637
Electronics & Software Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues	8,287,000	9,936,000	16,823,000	19,227,000
Electronics & Software Segment [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Revenues	6,898,000	8,055,000	14,346,000	14,969,000
Electronics & Software Segment [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,389,000	1,881,000	2,477,000	4,258,000
Electronics & Software Segment [Member] | Intelligent Edge Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,023,000	2,747,000	6,377,000	5,055,000
Electronics & Software Segment [Member] | Traditional Products [Member]
Disaggregation of Revenue [Line Items]
Revenues	5,264,000	7,189,000	10,446,000	14,172,000
Services & Support Segment [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,525,000	951,000	2,352,000	3,160,000
Services & Support Segment [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Revenues	626,000	295,000	719,000	1,768,000
Services & Support Segment [Member] | Healthcare [Member]
Disaggregation of Revenue [Line Items]
Revenues	240,000	183,000	430,000	376,000
Services & Support Segment [Member] | Financial and Other Commercial Clients [Member]
Disaggregation of Revenue [Line Items]
Revenues	474,000	291,000	817,000	550,000
Services & Support Segment [Member] | CSI IT Operations [Member]
Disaggregation of Revenue [Line Items]
Revenues	185,000	182,000	386,000	466,000
Services & Support Segment [Member] | Project & Product [Member]
Disaggregation of Revenue [Line Items]
Revenues	746,000	355,000	886,000	1,994,000
Services & Support Segment [Member] | Services & Support [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 779,000	$ 596,000	$ 1,466,000	$ 1,166,000

Discontinued Operations (Narrat

Discontinued Operations (Narrative) (Details)	Mar. 11, 2020USD ($)item	Jun. 30, 2020USD ($)	Dec. 31, 2021USD ($)	Dec. 31, 2020USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale		$ 8,190,000
Gain on sale of business line		2,039,000
Number of buildings leased to purchaser | item	2
Restructuring expense		764,000
Restructuring payments		122,000
Restructuring accrual		$ 642,000
Scenario, Forecast [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring expense			$ 1,300,000	$ 1,300,000
Remainder of Suttle Business Lines [Member] | Discontinued Operations, Disposed of by Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale	$ 8,000,000
Working capital adjustment, period after close	90 days
Minimum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Base rents	$ 6,970
Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Base rents	$ 7,180
Suttle [Member] | Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Continuation of product manufacturing, period	6 months

Discontinued Operations (Schedu

Discontinued Operations (Schedule of Discontinued Operations Assets and Liabilities Classified as Held-for-Sale) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Discontinued Operations [Abstract]
Trade accounts receivable		$ 2,235
Inventories		3,009
Other current assets		93
Total current assets		5,337
Property, plant, and equipment		883
Total noncurrent assets		883
Total assets held for sale		6,220
Accounts payable		1,111
Other accrued liabilities		82
Total liabilities held for sale		$ 1,193

Discontinued Operations (Sche_2

Discontinued Operations (Schedule of Financial Results of Discontinued Operations) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Discontinued Operations [Abstract]
Sales		$ 4,696,000	$ 3,025,000	$ 10,203,000
Cost of sales		3,228,000	2,050,000	6,935,000
Selling, general and administrative expenses		602,000	500,000	1,401,000
Restructuring expenses	$ 445,000		764,000
Loss (gain) on sale of assets	122,000	(2,986,000)	(2,039,000)	(2,986,000)
Other expense		10,000
Operating (loss) income before income taxes	(567,000)	3,842,000	1,750,000	4,853,000
Income tax expense (benefit)	2,000	19,000	5,000	(3,000)
(Loss) income from discontinued	$ (568,745)	$ 3,823,493	$ 1,744,607	$ 4,855,502

Cash Equivalents and Investme_3

Cash Equivalents and Investments (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Apr. 30, 2020
Debt and Equity Securities, FV-NI [Line Items]
Gross realized gains (losses)	$ 0	$ 0	$ 0	$ 0
Common Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Investment					$ 899,000

Cash Equivalents and Investme_4

Cash Equivalents and Investments (Schedule of Cash Equivalents and Available-for-Sale Securities) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 22,616,000	$ 18,462,000
Gross Unrealized Gains	8,000
Gross Unrealized Losses		(1,000)
Fair Value	22,624,000	18,461,000
Cash Equivalents	18,521,000	8,761,000
Short-Term Investments	3,748,313	9,449,650
Long-Term Investments	355,000	250,000
Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,521,000	8,761,000
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value	18,521,000	8,761,000
Cash Equivalents	18,521,000	8,761,000
Short-Term Investments
Long-Term Investments
Cash Equivalents [Member] | Money Market Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	18,521,000	8,761,000
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value	18,521,000	8,761,000
Cash Equivalents	18,521,000	8,761,000
Short-Term Investments
Long-Term Investments
Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	4,095,000	9,701,000
Gross Unrealized Gains	8,000
Gross Unrealized Losses		(1,000)
Fair Value	4,103,000	9,700,000
Cash Equivalents
Short-Term Investments	3,748,000	9,450,000
Long-Term Investments	355,000	250,000
Investments [Member] | Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	3,740,000	8,695,000
Gross Unrealized Gains	8,000
Gross Unrealized Losses		(1,000)
Fair Value	3,748,000	8,694,000
Cash Equivalents
Short-Term Investments	3,748,000	8,694,000
Long-Term Investments
Investments [Member] | Corporate Notes/Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		756,000
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value		756,000
Cash Equivalents
Short-Term Investments		756,000
Long-Term Investments
Investments [Member] | Convertible Debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	355,000	250,000
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value	355,000	250,000
Cash Equivalents
Short-Term Investments
Long-Term Investments	$ 355,000	$ 250,000

Cash Equivalents and Investme_5

Cash Equivalents and Investments (Schedule of Estimated Fair Value of Available-for-Sale Securities) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities [Line Items]
Estimated Market Value	$ 22,624	$ 18,461
Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Due within one year	3,740
Amortized Cost, Due after one year through five years	355
Amortized Cost	4,095
Estimated Market Value, Due within one year	3,748
Estimated Market Value, Due after one year through five years	355
Estimated Market Value	$ 4,103	$ 9,700

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	May 19, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options outstanding	1,215,904		1,215,904		1,130,472
Aggregate intrinsic value of options outstanding	$ 674,000		$ 674,000
Intrinsic value of all options exercised	5,000
Net cash proceeds from exercise of stock options	0	$ 0
Share based compensation expense before income taxes			177,000	$ 189,000
Share based compensation expense after income taxes			140,000	$ 149,000
Unrecognized compensation expense for awards	$ 833,000		$ 833,000
Recognition period for unrecognized compensation expense			2 years 7 months 6 days
2011 Executive Incentive Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of awards authorized						2,500,000
Shares issued under Plan	413,664		413,664
Number of options outstanding	1,519,088		1,519,088
Awards eligible for grant	567,248		567,248
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of price of common stock at which employees are able to acquire			85.00%
Shares available	81,053		81,053

Stock-Based Compensation (Sched

Stock-Based Compensation (Schedule of Changes in Number of Outstanding Stock Options Under Director Plan, Stock Plan and 2011 Incentive Plan) (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Stock-Based Compensation [Abstract]
Options, Outstanding - December 31, 2019	1,130,472
Options, Awarded	133,801
Options, Exercised	(2,000)
Options, Forfeited	(46,369)
Options, Outstanding - June 30, 2020	1,215,904	1,130,472
Options, Exercisable at June 30, 2020	956,317
Options, Expected to vest June 30, 2020	1,215,904
Weighted average exercise price per share, Outstanding - December 31, 2019	$ 7.28
Weighted average exercise price per share, Awarded	5.25
Weighted average exercise price per share, Exercised	2.64
Weighted average exercise price per share, Forfeited	11.11
Weighted average exercise price per share, Outstanding - June 30, 2020	6.92	$ 7.28
Weighted average exercise price per share, Exercisable at June 30, 2020	7.59
Weighted average exercise price per share, Expected to vest June 30, 2020	$ 6.92
Options, Outstanding - Weighted average remaining contractual term in years	3 years 6 months 7 days	3 years 5 months 23 days
Options, Exercisable - Weighted average remaining contractual term in years	2 years 10 months 24 days
Options, Expected to vest - Weighted average remaining contractual term in years	3 years 6 months 7 days

Stock-Based Compensation (Sch_2

Stock-Based Compensation (Schedule of Changes in the Number of Deferred Stock Shares Under the Incentive Plan) (Details) - Performance Units [Member]	6 Months Ended
	Jun. 30, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding - December 31, 2019 | shares	321,227
Shares, Granted | shares	89,131
Shares, Vested | shares	(46,584)
Shares, Forfeited | shares	(60,590)
Shares, Outstanding - June 30, 2020 | shares	303,184
Weighted Average Grant Date Fair Value, Outstanding - December 31, 2019 | $ / shares	$ 3.37
Weighted Average Grant Date Fair Value, Granted | $ / shares	5.39
Weighted Average Grant Date Fair Value, Vested | $ / shares	2.64
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	4.40
Weighted Average Grant Date Fair Value, Outstanding - June 30, 2020 | $ / shares	$ 3.87

Inventories (Schedule of Invent

Inventories (Schedule of Inventories) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Inventories [Abstract]
Finished goods	$ 8,741,000	$ 6,728,000
Raw and processed materials	1,201,000	1,803,000
Inventories	$ 9,941,657	$ 8,531,112

Acquisition (Narrative) (Detail

Acquisition (Narrative) (Details) - USD ($)	May 14, 2020	Jun. 30, 2020
Business Acquisition [Line Items]
Goodwill		$ 410,918
Ecessa Corporation [Member]
Business Acquisition [Line Items]
Ownership acquired	100.00%
Total purchase price of acquired entity	$ 4,650,000
Cash acquired in acquisition	666,000
Business acquisition, initial cash consideration paid	4,666,000
Business acquisition, working capital adjustment	$ (16,000)
Business acquisition, fair value of assets acquired and liabilities assumed		5,249,000
Goodwill		411,000
Intangible assets		3,190,000
Business acquisition, liabilities		$ 599,000

Debt (Narrative) (Details)

Debt (Narrative) (Details) - Line of Credit [Member] - USD ($)	6 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 15,000,000
Line of credit, amount outstanding	0	$ 0
Line of credit, remaining borrowing capacity	$ 4,052,000
Line of credit facility, interest rate at period end	2.20%
Line of credit, expiration date	Aug. 12, 2021
Minimum liquidity	$ 10,000,000
LIBOR [Member]
Debt Instrument [Line Items]
Line of credit, basis spread on variable rate	2.00%

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Income Taxes [Line Items]
Uncertain tax benefit positions that would reduce the effective income tax rate if recognized	$ 111,000
Effective tax rate	0.20%	0.90%
Tax at U.S. statutory rate	21.00%
Foreign net operating loss carry-forwards and credits	$ 0
Foreign income taxes, net of foreign tax credits	(31.80%)
Uncertain tax positions	$ 0
Domestic Tax Authority [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Open tax year	2016
Domestic Tax Authority [Member] | Latest Tax Year [Member]
Income Taxes [Line Items]
Open tax year	2019
State and Local Jurisdiction [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Open tax year	2015
State and Local Jurisdiction [Member] | Latest Tax Year [Member]
Income Taxes [Line Items]
Open tax year	2019
Foreign Tax Authority [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Open tax year	2016
Foreign Tax Authority [Member] | Latest Tax Year [Member]
Income Taxes [Line Items]
Open tax year	2018

Segment Information (Narrative)

Segment Information (Narrative) (Details)	6 Months Ended
	Jun. 30, 2020segment
Segment Information [Abstract]
Number of segments	2

Segment Information (Schedule o

Segment Information (Schedule of Segment Information) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Sales	$ 9,627,952	$ 10,704,467	$ 18,790,694	$ 21,920,637
Cost of sales	6,147,904	6,463,930	11,573,499	13,053,884
Gross profit	3,480,048	4,240,537	7,217,195	8,866,753
Selling, general and administrative expenses	4,731,887	5,369,869	9,672,558	10,817,464
Acquisition costs	394,366		414,585
Operating loss from continuing operations	(1,646,205)	(1,129,332)	(2,869,948)	(1,950,711)
Other income (expense)	278,983	67,148	689,550	92,659
Operating loss from continuing operations before income taxes	(1,367,222)	(1,062,184)	(2,180,398)	(1,858,052)
Depreciation and amortization	218,000	262,000	429,800	540,867
Capital expenditures	32,000	33,000	89,000	243,000
Assets	57,350,863	54,076,000	57,350,863	54,076,000	$ 59,150,712
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales	(184,000)	(182,000)	(384,000)	(466,000)
Cost of sales	(26,000)	(11,000)	(27,000)	(125,000)
Gross profit	(158,000)	(171,000)	(357,000)	(341,000)
Selling, general and administrative expenses	(158,000)	(171,000)	(357,000)	(341,000)
Depreciation and amortization
Capital expenditures
Assets	(27,000)	(27,000)	(27,000)	(27,000)
Electronics & Software Segment [Member]
Segment Reporting Information [Line Items]
Sales	8,287,000	9,936,000	16,823,000	19,227,000
Cost of sales	5,192,000	5,775,000	9,999,000	11,139,000
Gross profit	3,095,000	4,161,000	6,824,000	8,088,000
Selling, general and administrative expenses	3,638,000	4,300,000	7,535,000	8,696,000
Operating loss from continuing operations	(543,000)	(139,000)	(711,000)	(608,000)
Other income (expense)	3,000	2,000	17,000	1,000
Operating loss from continuing operations before income taxes	(540,000)	(137,000)	(694,000)	(607,000)
Depreciation and amortization	76,000	89,000	147,000	188,000
Capital expenditures	24,000	5,000	68,000	12,000
Assets	16,825,000	19,421,000	16,825,000	19,421,000
Services & Support Segment [Member]
Segment Reporting Information [Line Items]
Sales	1,525,000	951,000	2,352,000	3,160,000
Cost of sales	982,000	700,000	1,602,000	2,040,000
Gross profit	543,000	251,000	750,000	1,120,000
Selling, general and administrative expenses	483,000	331,000	811,000	707,000
Operating loss from continuing operations	60,000	(80,000)	(61,000)	413,000
Other income (expense)				(10,000)
Operating loss from continuing operations before income taxes	60,000	(80,000)	(61,000)	403,000
Depreciation and amortization	19,000	26,000	32,000	54,000
Capital expenditures			1,000	36,000
Assets	6,569,000	1,658,000	6,569,000	1,658,000
Other [Member]
Segment Reporting Information [Line Items]
Sales
Cost of sales
Gross profit
Selling, general and administrative expenses	769,000	910,000	1,683,000	1,756,000
Acquisition costs	394,000		415,000
Operating loss from continuing operations	(1,163,000)	(910,000)	(2,098,000)	(1,756,000)
Other income (expense)	276,000	65,000	673,000	102,000
Operating loss from continuing operations before income taxes	(887,000)	(845,000)	(1,425,000)	(1,654,000)
Depreciation and amortization	123,000	147,000	251,000	299,000
Capital expenditures	8,000	28,000	20,000	195,000
Assets	$ 33,984,000	$ 33,024,000	$ 33,984,000	$ 33,024,000

Net Income (Loss) Per Share (Na

Net Income (Loss) Per Share (Narrative) (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Stock Compensation Plan [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Dilutive effect of outstanding stock options and shares associated with long-term incentive compensation plans	0	2,530	0	0
Shares not included in the computation of diluted earnings per share		1,173,365		1,223,365
Employee Stock Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Dilutive effect of outstanding stock options and shares associated with long-term incentive compensation plans	0		0
Shares not included in the computation of diluted earnings per share	614,114		634,114
Performance Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares not included in the computation of diluted earnings per share	117,688	207,573	117,688	207,573

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2020
Fair Value Measurements [Abstract]
Transfers between levels	$ 0	$ 0

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 18,521	$ 8,761
Short-term investments	3,748	9,450
Long-term investments	355	250
Total	22,624	18,461
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	18,521	8,761
Total	18,521	8,761
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	3,748	9,450
Total	3,748	9,450
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term investments	355	250
Total	355	250
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	18,521	8,761
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	18,521	8,761
Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	3,748	8,694
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments	3,748	8,694
Corporate Notes/Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments		756
Corporate Notes/Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments		756
Convertible Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term investments	355	250
Convertible Debt [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term investments	$ 355	$ 250

General Commitments (Narrative)

General Commitments (Narrative) (Details)	Aug. 02, 2018USD ($)	Jun. 30, 2020USD ($)item	Jul. 28, 2020USD ($)	Dec. 31, 2019USD ($)
Other Commitments [Line Items]
Sale of building, purchase agreement, consideration amount	$ 10,000,000
Purchase agreement, buyer to complete due diligence, period	180 days
Restricted cash		$ 479,644		$ 679,006
Purchase Agreement [Member]
Other Commitments [Line Items]
Number of amendments to purchase agreement | item		2
Restricted cash		$ 225,000
Subsequent Event [Member] | Purchase Agreement [Member]
Other Commitments [Line Items]
Earnest money in escrow transferred to Company			$ 225,000