SUNation Energy (SUNE) 10-Q 9 Nov 18 2018 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Nov. 01, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2,018
Entity Registrant Name	COMMUNICATIONS SYSTEMS INC
Entity Central Index Key	22,701
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Common Stock, Shares Outstanding		9,158,485

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2018	Dec. 31, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 8,632,794	$ 12,453,663
Investments	2,618,322	5,540,744
Trade accounts receivable, less allowance for doubtful accounts of $99,000 and $106,000, respectively	11,448,146	12,183,217
Inventories	16,130,318	13,984,428
Prepaid income taxes	464,459	493,834
Other current assets	1,363,851	810,532
TOTAL CURRENT ASSETS	40,657,890	45,466,418
PROPERTY, PLANT AND EQUIPMENT, net	11,552,470	12,624,730
OTHER ASSETS:
Deferred income taxes	38,136	38,136
Other assets, net	7,784	16,977
TOTAL OTHER ASSETS	45,920	55,113
TOTAL ASSETS	52,256,280	58,146,261
CURRENT LIABILITIES:
Accounts payable	3,590,288	4,554,683
Accrued compensation and benefits	2,706,719	2,422,083
Other accrued liabilities	3,016,375	1,586,473
Dividends payable	368,783	397,151
TOTAL CURRENT LIABILITIES	9,682,165	8,960,390
LONG TERM LIABILITIES:
Long-term compensation plans		11,079
Uncertain tax positions		4,065
TOTAL LONG-TERM LIABILITIES		15,144
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; 9,149,877 and 8,973,708 shares issued and outstanding, respectively	457,494	448,685
Additional paid-in capital	42,622,449	42,006,750
Retained earnings	193,408	7,328,671
Accumulated other comprehensive loss	(699,236)	(613,379)
TOTAL STOCKHOLDERS' EQUITY	42,574,115	49,170,727
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 52,256,280	$ 58,146,261

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Condensed Consolidated Balance Sheets [Abstract]
Trade accounts receivable, allowance for doubtful accounts	$ 99	$ 106
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	9,149,877	8,973,708
Common stock, shares outstanding	9,149,877	8,973,708

Condensed Consolidated Statemen

Condensed Consolidated Statements of Loss and Comprehensive Loss - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Condensed Consolidated Statements of Loss and Comprehensive Loss [Abstract]
Sales	$ 15,291,993	$ 20,412,439	$ 47,103,837	$ 63,280,980
Cost of sales	10,051,419	17,108,532	32,699,559	48,001,368
Gross profit	5,240,574	3,303,907	14,404,278	15,279,612
Operating expenses:
Selling, general and administrative expenses	6,842,348	7,161,323	20,702,476	21,516,625
Impairment loss				1,617,389
Restructuring expense		796,231	0	2,325,861
Total operating expenses	6,842,348	7,957,554	20,702,476	25,459,875
Operating loss	(1,601,774)	(4,653,647)	(6,298,198)	(10,180,263)
Other income (expenses):
Investment and other income	70,638	38,869	263,890	78,888
(Loss) Gain on sale of assets	(6,147)	26,222	10,904	(32,024)
Interest and other expense	(9,586)	(42,799)	(28,774)	(61,839)
Other income (expense), net	54,905	22,292	246,020	(14,975)
Loss from operations before income taxes	(1,546,869)	(4,631,355)	(6,052,178)	(10,195,238)
Income tax benefit	(2,137)	(109,340)	(6,092)	(67,014)
Net loss	(1,544,732)	(4,522,015)	(6,046,086)	(10,128,224)
Other comprehensive income (loss), net of tax:
Unrealized loss (gain) on available-for-sale securities	2,403	(240)	405	(3,187)
Foreign currency translation adjustment	(15,357)	31,508	(86,262)	63,724
Total other comprehensive (loss) income	(12,954)	31,268	(85,857)	60,537
Comprehensive loss	$ (1,557,686)	$ (4,490,747)	$ (6,131,943)	$ (10,067,687)
Basic net loss per share:	$ (0.17)	$ (0.50)	$ (0.66)	$ (1.13)
Diluted net loss per share:	$ (0.17)	$ (0.50)	$ (0.66)	$ (1.13)
Weighted Average Basic Shares Outstanding	9,146,184	8,960,606	9,093,609	8,934,235
Weighted Average Dilutive Shares Outstanding	9,146,184	8,960,606	9,093,609	8,934,235
Dividends declared per share	$ 0.04	$ 0.04	$ 0.12	$ 0.12

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, 2017	$ 448,685	$ 42,006,750	$ 7,328,671	$ (613,379)	$ 49,170,727
BALANCE, Shares at Dec. 31, 2017	8,973,708
Net loss			(6,046,086)		(6,046,086)
Issuance of common stock under Employee Stock Purchase Plan	$ 1,053	76,964			78,017
Issuance of common stock under Employee Stock Purchase Plan, Shares	21,053
Issuance of common stock to Employee Stock Ownership Plan	$ 5,982	419,908			425,890
Issuance of common stock to Employee Stock Ownership Plan, Shares	119,632
Issuance of common stock under Executive Stock Plan	$ 2,175				2,175
Issuance of common stock under Executive Stock Plan, Shares	43,501
Share based compensation		156,214			156,214
Other share retirements	$ (401)	(37,387)	9,325		(28,463)
Other share retirements, Shares	(8,017)
Shareholder dividends			(1,098,502)		(1,098,502)
Other comprehensive loss				(85,857)	(85,857)
BALANCE at Sep. 30, 2018	$ 457,494	42,622,449	193,408	(699,236)	42,574,115
BALANCE, Shares at Sep. 30, 2018	9,149,877
BALANCE at Jun. 30, 2018	$ 457,132	42,548,812	2,104,414	(686,282)	44,424,076
BALANCE, Shares at Jun. 30, 2018	9,142,649
Net loss			(1,544,732)		(1,544,732)
Issuance of common stock under Employee Stock Purchase Plan	$ 362	27,206			27,568
Issuance of common stock under Employee Stock Purchase Plan, Shares	7,228
Share based compensation		46,431			46,431
Shareholder dividends			(366,274)		(366,274)
Other comprehensive loss				(12,954)	(12,954)
BALANCE at Sep. 30, 2018	$ 457,494	$ 42,622,449	$ 193,408	$ (699,236)	$ 42,574,115
BALANCE, Shares at Sep. 30, 2018	9,149,877

Condensed Consolidated Statem_3

Condensed Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
Condensed Consolidated Statements of Changes in Stockholders' Equity [Abstract]
Shareholder dividends per share	$ 0.04	$ 0.12

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (6,046,086)	$ (10,128,224)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	1,695,451	2,489,661
Share based compensation	156,214	327,261
Deferred taxes		(52,998)
Impairment loss		1,617,389
(Gain) loss on sale of assets	(10,904)	537,470
Changes in assets and liabilities:
Trade accounts receivable	704,698	765,055
Inventories	(2,181,679)	7,232,732
Prepaid income taxes	29,375	789,209
Other assets, net	(559,003)	358,160
Accounts payable	(893,578)	(1,648,259)
Accrued compensation and benefits	702,267	701,546
Other accrued liabilities	1,441,020	(157,422)
Income taxes payable	(4,065)	(103,215)
Net cash (used in) provided by operating activities	(4,966,290)	2,728,365
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(699,818)	(389,616)
Purchases of investments	(6,580,917)
Proceeds from the sale of property, plant and equipment	33,763	220,366
Proceeds from the sale of investments	9,503,744	5,076,978
Net cash provided by investing activities	2,256,772	4,907,728
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash dividends paid	(1,126,870)	(1,096,726)
Proceeds from issuance of common stock, net of shares withheld	51,729	74,222
Net cash used in financing activities	(1,075,141)	(1,022,504)
EFFECT OF FOREIGN EXCHANGE RATE CHANGES ON CASH	(36,210)	9,622
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(3,820,869)	6,623,211
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	12,453,663	10,443,274
CASH AND CASH EQUIVALENTS AT END OF PERIOD	8,632,794	17,066,485
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Income taxes refunded	(31,402)	(646,660)
Interest paid	18,969	29,297
Dividends declared not paid	368,783	398,210
Capital expenditures in accounts payable	$ 33,934	$ 75,525

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2018
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 through its Suttle, Inc. (“Suttle”) subsidiary and business unit in the manufacture and sale of connectivity infrastructure products for broadband and voice communications, and through its Transition Networks, Inc. (“Transition Networks” or “Transition”) subsidiary and business unit in the manufacture and sale of core media conversion products, Ethernet switches, and other connectivity and data transmission products. Through its JDL Technologies, Inc. (“JDL Technologies” or “JDL”) business unit, CSI provides technology solutions including virtualization, managed services, wired and wireless network design and implementation, and hybrid cloud infrastructure and deployment. Through its Net2Edge Limited (“Net2Edge”) U.K.-based business unit, the Company develops, manufactures and sells products that enable telecommunications carriers to connect legacy networks to high-speed services.   The Company classifies its businesses into four segments corresponding to the Suttle, Transition Networks, JDL Technologies and Net2Edge business units. 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 September 30, 2018 and the related condensed consolidated statements of loss and comprehensive loss, and the condensed consolidated statements of cash flows for the periods ended September 30, 2018 and 2017 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 September 30, 2018 and 2017 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, 2017 Annual Report to Shareholders on Form 10-K. The results of operations for the period ended September 30, 2018 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, 2017 , 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 (loss)/gain on securities Accumulated Other Comprehensive Loss  December 31, 2017 $ (625,000) $ 12,000 $ (613,000)   Net current period change (87,000) 1,000 (86,000)   September 30, 2018 $ (712,000) $ 13,000 $ (699,000) 

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2018
Revenue Recognition [Abstract]
Revenue Recognition	NOTE 2 – REVENUE RECOGNITION  The Company adopted ASC 606, “Revenue from Contracts with Customers,” on January 1, 2018 using the modified retrospective method for all contracts not completed as of the date of adoption. The reported results for 2018 reflect the application of ASC 606 guidance while the reported results for 2017 were prepared under the guidance of ASC 605, “ Revenue Recognition” (ASC 605), which is also referred to herein as "legacy GAAP" or the "previous guidance". The adoption of ASC 606 represents a change in accounting principle that will more closely align revenue recognition with the delivery of the Company's goods and services and will provide financial statement readers with enhanced disclosures. In accordance with ASC 606, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration that the Company expects to receive in exchange for these goods or services.  Suttle, Inc. & Transition Networks  The Company’s Suttle business unit manufactures and markets a broad range of products that support broadband and telephone service under the Suttle brand name in the United States and internationally. Suttle markets its outside plant and premise distribution products globally to telecommunications companies, service providers, residential builders, and low-voltage installers through distributors and the Company’s sales staff. Suttle’s customers include telephone, CATV, internet service providers, distributors, and enterprise networks.  The Company’s Transition Networks business unit sells media converter devices, NIDs, Ethernet switches and other connectivity products that make it possible to transmit telecommunications signals across networks and between systems using various types of media. Transition sells its products through distributors, resellers, integrators, and OEMs.  The Company has determined that the performance obligation for its Suttle and Transition Networks divisions 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.  JDL Technologies, Inc.  The Company’s JDL Technologies, Inc. division is a managed service provider and a value-added reseller supplying IT solutions focused on IT service and support management; network design, deployment and integration; cloud, hosted and virtualized services; and network operations center management. Major technology solutions include networking, virtualization, cloud and infrastructure services, most of which are available under JDL managed service contracts.  The Company has determined that the following performance obligations identified in its JDL Technologies, Inc. division are transferred over time: managed services and professional services (time and materials (“T&M”) and fixed price). The division’s managed services performance obligation is a bundled solution, a series of distinct services that are substantially the same and that have the same pattern of transfer to the customer and are recognized evenly over the term of the contract. T&M professional services arrangements are measured over time with an input method based on hours expended towards satisfying this performance obligation. Fixed price professional service arrangements under a relatively longer-term service will also be measured over time with an input method based on hours expended.  The Company has also identified the following performance obligations within its JDL Technologies division 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 as the Company has transferred control upon the service first being made available to the customer by the third party vendor, which are required to be presented on a net basis. 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.  Net2Edge Limited  The Company’s Net2Edge division manufactures and markets Ethernet based network access devices. The Company principally sells its products through approved partners and integrators outside the United States. The Company has determined that the performance obligation in the Net2Edge division is recognized at a point in time, upon the delivery of its connectivity infrastructure and data transmission products.  Significant Judgments  To determine the transaction price, the Company estimates the amount of variable consideration at the outset of the contract, depending on the facts and circumstances relative to the contract. The Company may provide credits or incentives to its customers, which are accounted for as either variable consideration or consideration payable to the customer. The Company estimates product returns based on historical return rates. The Company constrains (reduces) the estimates of variable consideration such that it is probable that a significant revenue reversal of previously recognized revenue will not occur throughout the life of the contract. When determining if variable consideration should be constrained, management considers whether there are factors outside the Company’s control that could result in a significant reversal of revenue. In making these assessments, the Company considers the likelihood and magnitude of a potential reversal of revenue. The Company will assess if any incentives it offers to its customer is a consideration payable. The Company accounts for consideration payable to a customer as a reduction of the transaction price, and therefore, of revenue. For contracts with more than one performance obligation, the consideration is allocated between separate products and services based on their stand-alone selling prices. Judgment is required to determine standalone selling prices for each distinct performance obligation. The Company generally determines standalone selling prices based on the actual prices charged to customers and has an established range of amounts that fall within stand-alone selling price for its distinct performance obligations. The Company evaluates this range quarterly.  Financial Statement Impact of Adopting ASC 606  The Company adopted ASC 606 using the modified retrospective method. The cumulative effect of applying the new guidance to all contracts with customers that were not completed as of January 1, 2018 would require an adjustment to the opening balance of retained earnings as of the adoption date. As a result of applying the modified retrospective method to adopt the new revenue guidance, the Company determined that there were no significant adjustments to be made to its consolidated balance sheet as of January 1, 2018.  Costs to Obtain or Fulfill a Contract  In addition to the new revenue recognition guidance, “Other Assets and Deferred Costs” (ASC 340-40), was added to provide guidance on the accounting for certain costs to obtain and fulfill contracts (or, in some cases, an anticipated contract) with a customer. ASC 340-40 is applicable only to incremental contract costs, those that an entity would not have incurred if the contract had not been obtained, and requires the capitalization of such costs as well as provides guidance on the amortization and impairment considerations. The Company elects the practical expedient and expenses certain costs to obtain contracts when applicable. There were no material costs to obtain a contract in the nine months ended September 30, 2018 .  Impact of New Revenue Guidance on Financial Statement Line Items  The following table compares the reported condensed consolidated balance sheet, statement of loss and comprehensive loss and cash flows, as of and for the three and nine months ended September 30, 2018 , to the pro-forma amounts had the previous guidance been in effect:        As of September 30, 2018  As Reported Balances without adoption of ASC 606 Effect of Change Higher/(Lower)   Trade accounts receivable $ 11,448,000 $ 10,264,000 $ 1,184,000  Inventories 16,130,000 16,735,000 (605,000)  Other current assets 1,364,000 759,000 605,000  Other accrued liabilities 3,016,000 1,832,000 1,184,000       Three Months Ended September 30, 2018  As Reported Balances without adoption of ASC 606 Effect of Change Higher/(Lower)   Revenue $ 15,292,000 $ 15,473,000 $ (181,000)  Gross Profit 5,241,000 5,422,000 (181,000)  Selling, general and administrative expenses 6,842,000 7,023,000 (181,000)  Operating Loss (1,602,000) (1,602,000) -       Nine Months Ended September 30, 2018  As Reported Balances without adoption of ASC 606 Effect of Change Higher/(Lower)   Revenue $ 47,104,000 $ 47,576,000 $ (472,000)  Gross Profit 14,404,000 14,876,000 (472,000)  Selling, general and administrative expenses 20,702,000 21,174,000 (472,000)  Operating Loss (6,298,000) (6,298,000) -    Transaction Price Allocated to Future Performance Obligations  To determine the allocation of the transaction price and amounts allocated to the performance obligations, the Company first determined the standalone selling price for each distinct performance obligation in the contract in order to determine the allocations of the transaction price in proportion to the standalone selling price for each performance obligation in the contract in accordance with ASC 606-10-32-31 and 32-33. Judgment is required to determine standalone selling price for each distinct performance obligation. The Company generally determines standalone selling prices based on the actual prices charged to customers and has an established range of amounts that fall within stand-alone selling price for its distinct performance obligations. The Company will evaluate this range quarterly.  Practical Expedients and Exemptions  The Company adopted various practical expedients and policy elections related to the accounting for significant finance components, sales taxes, shipping and handling, costs to obtain a contract and immaterial promised goods or services, which will mitigate certain impacts of adopting this new standard. The practical expedient to disclose the unfulfilled performance obligations was not made as they are expected to be fulfilled within one year.  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.  For Suttle, we analyze revenues by product and customer group, which is as follows for the three and nine months ended September 30, 2018 and 2017 :     Suttle Sales by Product Group  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  Structured cabling and connecting system products $ 4,748,000 $ 7,230,000 $ 16,490,000 $ 22,798,000  DSL and other products 261,000 306,000 1,365,000 2,090,000  $ 5,009,000 $ 7,536,000 $ 17,855,000 $ 24,888,000       Suttle Sales by Customer Group  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  Communication service providers $ 4,258,000 $ 6,912,000 $ 14,705,000 $ 22,468,000  International 350,000 173,000 1,696,000 545,000  Distributors 401,000 451,000 1,454,000 1,875,000  $ 5,009,000 $ 7,536,000 $ 17,855,000 $ 24,888,000   For Transition Networks, we analyze revenue by region and product group, which is as follows for the three and nine months ended September 30, 2018 and 2017 :     Transition Networks Sales by Region  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  North America $ 8,015,000 $ 7,404,000 $ 22,107,000 $ 22,560,000  Rest of World 690,000 1,301,000 2,530,000 3,751,000  Europe, Middle East, Africa ("EMEA") 526,000 622,000 1,582,000 1,520,000  $ 9,231,000 $ 9,327,000 $ 26,219,000 $ 27,831,000       Transition Networks Sales by Product Group  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  Media converters $ 5,059,000 $ 4,950,000 $ 14,735,000 $ 16,004,000  Ethernet switches and adapters 2,563,000 2,263,000 6,650,000 5,750,000  Other products 1,609,000 2,114,000 4,834,000 6,077,000  $ 9,231,000 $ 9,327,000 $ 26,219,000 $ 27,831,000   For JDL, we analyze revenue by customer group, which is as follows for the three and nine months ended September 30, 2018 and 2017 :     JDL Revenue by Customer Group  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  Education $ 185,000 $ 2,870,000 $ 574,000 $ 8,085,000  Healthcare and commercial clients 674,000 743,000 1,908,000 2,419,000  $ 859,000 $ 3,613,000 $ 2,482,000 $ 10,504,000    The Company does not currently analyze revenue for Net2Edge on a disaggregated basis. Revenues from Net2Edge were $ 405,000 and $ 182,000 for the three months ended September 30, 2018 and 2017 , respectively. Revenues were $1,251,000 and $ 719,000 for the nine months ended September 30, 2018 and 2017 , respectively.  Contract Balances  The Company does not have material costs to obtain a contract or material contract liabilities.

Cash Equivalents and Investment

Cash Equivalents and Investments	9 Months Ended
	Sep. 30, 2018
Cash Equivalents and Investments [Abstract]
Cash Equivalents and Investments	NOTE 3 – 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 September 30, 2018 and December 31, 2017 :     September 30, 2018  Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Short-Term Investments Long-Term Investments   Cash equivalents:  Money Market funds $ 6,763,000 $ - $ - $ 6,763,000 $ 6,763,000 $ - $ -  Subtotal 6,763,000 - - 6,763,000 6,763,000 - -   Investments:  Commercial Paper 2,619,000 - (1,000) 2,618,000 - 2,618,000 -  Subtotal 2,619,000 - (1,000) 2,618,000 - 2,618,000 -    Total $ 9,382,000 $ - $ (1,000) $ 9,381,000 $ 6,763,000 $ 2,618,000 $ -         December 31, 2017  Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Short-Term Investments Long-Term Investments   Cash equivalents:  Money Market funds $ 6,193,000 $ - $ - $ 6,193,000 $ 6,193,000 $ - $ -  Subtotal 6,193,000 - - 6,193,000 6,193,000 - -   Investments:  Commercial Paper 997,000 - - 997,000 - 997,000 -  Corporate Notes/Bonds 4,545,000 - (1,000) 4,544,000 - 4,544,000 -  Subtotal 5,542,000 - (1,000) 5,541,000 - 5,541,000 -    Total $ 11,735,000 $ - $ (1,000) $ 11,734,000 $ 6,193,000 $ 5,541,000 $ -  The Company tests for other than temporary losses on a quarterly basis and has considered the unrealized losses indicated above to be temporary in nature. The Company intends to hold the investments until it can recover the full principal amount and has the ability to do so based on other sources of liquidity. The Company expects such recoveries to occur prior to the contractual maturities. All unrealized losses as of September 30, 2018 were in a continuous unrealized loss position for less than twelve months and are not deemed to be other than temporarily impaired as of September 30, 2018 . 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 September 30, 2018 :     Amortized Cost Estimated Market Value   Due within one year $ 2,619,000 $ 2,618,000  The Company did not recognize any gross realized gains or losses during the either of the nine month periods ending September 30, 2018 or 2017 . If the Company had realized gains or losses, they would be included within investment and other income in the accompanying condensed consolidated statement of loss and comprehensive loss.

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2018
Stock-Based Compensation [Abstract]
Stock-Based Compensation	NOTE 4 - 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 September 30, 2018 . The ESPP is considered compensatory under current Internal Revenue Service rules. At September 30, 2018 , after giving effect to the shares issued as of that date, 32,152 shares remain available for purchase 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.  During 2018 , stock options covering 218,665 shares have been awarded to key executive employees and directors. These options expire seven years from the date of award and generally vest 25 % each year beginning one year after the date of award. The Company also conditionally granted deferred stock awards of 163,002 shares to key employees during the first half of 2018 under the Company’s long-term incentive plan for performance over the 2018 to 2020 period. The actual number of shares of deferred stock, if any, that are ultimately earned by the respective employees will be determined based on achievement against performance goals at the end of the three-year period ending December 31, 2020 and any shares earned will be issued in the first quarter of 2021 to those key employees still with the Company at that time.  At September 30, 2018 , 208,555 shares have been issued under the 2011 Incentive Plan, 1,630,166 shares are subject to currently outstanding options, deferred stock awards, and unvested restricted stock units, and 661,279 shares are eligible for grant under future awards.  Stock Option Plan for Directors  Shares of common stock are reserved for issuance to non-employee directors under options granted by the Company prior to 2011 under its Stock Option Plan for Non-Employee Directors (the “Director Plan”) . Under the Director Plan nonqualified stock options to acquire shares of common stock were automatically granted to each non-employee director concurrent with annual meetings of shareholders in 2010 and earlier years, with t he exercise price of options granted being the fair market value of the common stock on the date of the respective shareholder meetings. Options granted under the Director Plan expire 10 years from date of grant. No options have been granted under the Director Plan since 2011 when the Company amended the Director Plan to prohibit future option grants. As of September 30, 2018 , there were 36,000 shares subject to outstanding options under the Director Plan.  Changes in Stock Options Outstanding  The following table summarizes changes in the number of outstanding stock options under the 2011 Incentive Plan and the Director Plan over the period December 31, 2017 to September 30, 2018 :     Weighted average  Weighted average remaining  exercise price contractual term  Options per share in years  Outstanding – December 31, 2017 1,172,659 $ 8.63 4.55  Awarded 218,665 3.67  Exercised - -  Forfeited (39,552) 11.38  Outstanding – September 30, 2018 1,351,772 7.75 4.33   Exercisable at September 30, 2018 848,805 $ 9.52 3.51  Expected to vest September 30, 2018 1,351,772 7.75 4.33  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 September 30, 2018 was $ 0 . The intrinsic value of all options exercised during the nine months ended September 30, 2018 was $ 0 . Net cash proceeds from the exercise of all stock options were $ 0 in each of the nine month periods ended September 30, 2018 and 2017 .  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, 2017 to September 30, 2018 :     Weighted Average  Grant Date  Shares Fair Value  Outstanding – December 31, 2017 190,524 $ 6.60  Granted 163,002 3.56  Vested (29,708) 10.51  Forfeited (9,424) 11.48  Outstanding – September 30, 2018 314,394 4.51  Changes in Restricted Stock Units Outstanding  The following table summarizes the changes in the number of restricted stock units under the 2011 Incentive Plan over the period December 31, 2017 to September 30, 2018 :     Weighted Average  Grant Date  Shares Fair Value  Outstanding – December 31, 2017 13,793 $ 6.33  Granted - -  Issued (13,793) 6.33  Forfeited - -  Outstanding – September 30, 2018 - -  Compensation Expense  Share-based compensation expense recognized for the nine months ended September 30, 2018 was $ 156,000 before income taxes and $ 123,000 after income taxes. Share-based compensation expense recognized for the nine months ended September 30 , 2017 was $ 327,000 before income taxes and $ 213,000 after income taxes. Unrecognized compensation expense for the Company’s plans was $ 187,000 at September 30, 2018 and is expected to be recognized over a weighted-average period of 2.4 years. Share-based compensation expense is recorded as a part of selling, general and administrative expenses.

Inventories

Inventories	9 Months Ended
	Sep. 30, 2018
Inventories [Abstract]
Inventories	NOTE 5 - INVENTORIES  Inventories summarized below are priced at the lower of first-in, first-out cost or net realizable value:     September 30 December 31  2018 2017  Finished goods $ 9,643,000 $ 8,056,000  Raw and processed materials 6,487,000 5,928,000  $ 16,130,000 $ 13,984,000

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2018
Goodwill and Intangible Assets [Abstract]
Goodwill and Intangible Assets	NOTE 6 – GOOWDWILL AND INTANGIBLE ASSETS  Goodwill is required to be evaluated for impairment on an annual basis and between annual tests upon the occurrence of certain events or circumstances. In January 2017, the Financial Accounting Standards Board (FASB) issued ASU 2017-04, “Intangible-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment”. The new standard eliminates the quantitative goodwill impairment analysis requirement to determine the fair value of individual assets and liabilities of a reporting unit to determine the amount of any goodwill impairment and instead permits an entity to recognize goodwill impairment loss as the excess of a reporting unit’s carrying value over the estimated fair value of the reporting unit, to the extent this amount does not exceed the carrying amount of goodwill. The Company chose to adopt this standard early for the annual impairment analysis in 2017. The Company performed the first step of the previous two-step process, which requires that the fair value of the reporting unit be compared to its book value including goodwill. If the fair value is higher than the book value, no impairment is recognized. If the fair value is lower than the book value, an impairment adjustment must be recorded. The Company performs its annual impairment analysis as of April 1 each year. The Company analyzed the reporting unit that had the goodwill and also analyzed the company as a whole, including the Company’s four separate reporting units. Although JDL Technologies had been profitable for the past eight quarters, the cyclicality and unpredictability of revenues from its education sector raised issues in forecasting cash flows in future quarters used to estimate the reporting unit’s fair value. Based on this analysis of comparing the fair value of each reporting unit to the book value, and comparing the Company’s overall book value with its market capitalization, the Company determined that the book value exceeded the overall fair value of the reporting units as well as the Company’s overall market value. As a result, the Company recorded a goodwill impairment charge totaling $1,463,000 during the second quarter of 2017.  As part of the overall annual impairment analysis noted above, the Company also reviewed other intangible assets for potential impairment. Based on this analysis, the Company deemed the intangible assets related to customer relationships to be impaired and recorded a $154,000 impairment loss during the second quarter of 2017.  The Company’s identifiable intangible assets with finite lives, included in other assets, net on the condensed consolidated balance sheets, are being amortized over their estimated useful lives and were as follows:     September 30, 2018  Gross Carrying Amount Accumulated Amortization Impairment loss Foreign Currency Translation Net   Trademarks $ 98,000 $ (73,000) $ - $ (17,000) $ 8,000  Customer relationships 491,000 (230,000) (154,000) (107,000) -  Technology 229,000 (189,000) - (40,000) -  $ 818,000 $ (492,000) $ (154,000) $ (164,000) $ 8,000      December 31, 2017  Gross Carrying Amount Accumulated Amortization Impairment loss Foreign Currency Translation Net   Trademarks $ 98,000 $ (66,000) $ - $ (15,000) $ 17,000  Customer relationships 491,000 (230,000) (154,000) (107,000) -  Technology 229,000 (189,000) - (40,000) -  $ 818,000 $ (485,000) $ (154,000) $ (162,000) $ 17,000   Amortization expense on these identifiable intangible assets was $ 9,000 and $ 24,000 for the nine months ended September 30, 2018 and 2017 , respectively. The amortization expense is included in selling, general and administrative expenses. At September 30, 2018 , the estimated future amortization expense for definite-lived intangible assets for the remainder of 2018 and all of the following four fiscal years is as follows:      Year Ending December 31:  2018 $ 1,000  2019 2,000  2020 2,000  2021 2,000  2022 1,000 

Warranty

Warranty	9 Months Ended
	Sep. 30, 2018
Warranty [Abstract]
Warranty	NOTE 7 – WARRANTY  We provide reserves for the estimated cost of product warranties at the time revenue is recognized. We estimate the costs of our warranty obligations based on our warranty policy or applicable contractual warranty, historical experience of known product failure rates, and use of materials and service delivery costs incurred in correcting product failures. Management reviews the estimated warranty liability on a quarterly basis to determine its adequacy. The actual warranty expense could differ from the estimates made by the Company based on product performance. The warranty liability is included in other accrued liabilities on the condensed consolidated balance sheet.  The following table presents the changes in the Company’s warranty liability for the nine month periods ended September 30, 2018 and 2017 , respectively, the majority of which relates to a five -year obligation to provide for potential future liabilities for network equipment sales.     2018 2017  Beginning balance $ 603,000 $ 600,000  Amounts charged (credited) to expense 116,000 43,000  Actual warranty costs paid (75,000) (57,000)  Ending balance $ 644,000 $ 586,000

Contingencies

Contingencies	9 Months Ended
	Sep. 30, 2018
Contingencies and General Commitments [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	9 Months Ended
	Sep. 30, 2018
Debt [Abstract]
Debt	NOTE 9 – DEBT  Line of Credit The Company has a $15,000,000 line of credit from Wells Fargo Bank. The Company had no outstanding borrowings against the line of credit at September 30, 2018 and December 31, 2017 . 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 September 30, 2018 was $ 8,126,000 , based on the borrowing base calculation. Interest on borrowings on the credit line is at LIBOR plus 2.0% ( 4.3% at September 30, 2018 ). 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 September 30, 2018 .

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2018
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 September 30, 2018 there was $ 33,000 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 loss and comprehensive 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 2015-2017 remain open to examination by the Internal Revenue Service and the years 2014-2017 remain open to examination by various state tax departments. The tax years from 2014-2017 remain open in Costa Rica. The Company’s effective income tax rate was 0.1% for the first nine months of 2018 . 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, provisions for interest charges for uncertain income tax positions, stock compensation shortfalls 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 (8.8%) for the nine months ended September 30, 2018 . There were no additional uncertain tax positions identified in the first nine months of 2018 . The Company's effective income tax rate for the nine months ended September 30 , 2017 was 0.7% , 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	9 Months Ended
	Sep. 30, 2018
Segment Information [Abstract]
Segment Information	NOTE 11 – SEGMENT INFORMATION  The Company classifies its businesses into the four segments as follows:  · Suttle manufactures and markets connectivity infrastructure products for broadband and voice communications; · Transition Networks manufactures media converters, NIDs, NICs, Ethernet switches and other connectivity products that offer the ability to affordably integrate the benefits of fiber optics into any data network; · JDL Technologies 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 ; and · Net2Edge develops, manufactures and sells products that enable telecommunications carriers to connect legacy networks to high-speed services .  Management has chosen to organize the enterprise and disclose reportable segments based on our products and services. Intersegment revenues are eliminated upon consolidation.  Information concerning the Company’s continuing operations in the various segments for the three and nine month periods ended September 30, 2018 and 2017 is as follows:      Transition JDL Intersegment  Suttle Networks Technologies Net2Edge Other Eliminations Total  Three Months Ended September 30, 2018  Sales $ 5,009,000 $ 9,231,000 $ 859,000 $ 405,000 $ - $ (212,000) $ 15,292,000  Cost of sales 4,093,000 4,883,000 712,000 365,000 - (2,000) 10,051,000  Gross profit (loss) 916,000 4,348,000 147,000 40,000 - (210,000) 5,241,000  Selling, general and  administrative expenses 2,053,000 3,745,000 446,000 809,000 - (210,000) 6,843,000  Operating (loss) income (1,137,000) 603,000 (299,000) (769,000) - - (1,602,000)  Other income (expense) (5,000) (1,000) - 19,000 42,000 - 55,000  Income (loss) before income tax $ (1,142,000) $ 602,000 $ (299,000) $ (750,000) $ 42,000 $ - $ (1,547,000)   Depreciation and amortization $ 374,000 $ 96,000 $ 40,000 $ 13,000 $ - $ - $ 523,000   Capital expenditures $ 48,000 $ 31,000 $ - $ (7,000) $ 14,000 $ - $ 86,000   Assets $ 13,277,000 $ 17,644,000 $ 1,177,000 $ 2,421,000 $ 17,764,000 $ (27,000) $ 52,256,000       Transition JDL Intersegment  Suttle Networks Technologies Net2Edge Other Eliminations Total  Three Months Ended September 30, 2017  Sales $ 7,536,000 $ 9,327,000 $ 3,613,000 $ 182,000 $ - $ (245,000) $ 20,413,000  Cost of sales 8,967,000 5,342,000 2,730,000 122,000 - (52,000) 17,109,000  Gross profit (1,431,000) 3,985,000 883,000 60,000 - (193,000) 3,304,000  Selling, general and  administrative expenses 2,239,000 3,809,000 471,000 836,000 - (193,000) 7,162,000  Impairment loss - - - - - - -  Restructuring expense 796,000 - - - - - 796,000  Operating (loss) income (4,466,000) 176,000 412,000 (776,000) - - (4,654,000)  Other income (expense) - 17,000 - 1,000 5,000 - 23,000  Income (loss) before income tax $ (4,466,000) $ 193,000 $ 412,000 $ (775,000) $ 5,000 $ - $ (4,631,000)   Depreciation and amortization $ 525,000 $ 158,000 $ 76,000 $ 9,000 $ - $ - $ 768,000   Capital expenditures $ 52,000 $ 174,000 $ - $ 3,000 $ 23,000 $ - $ 252,000   Assets $ 21,389,000 $ 12,593,000 $ 4,809,000 $ 1,258,000 $ 21,239,000 $ (27,000) $ 61,261,000        Transition JDL Intersegment  Suttle Networks Technologies Net2Edge Other Eliminations Total  Nine Months Ended September 30, 2018  Sales $ 17,855,000 $ 26,219,000 $ 2,482,000 $ 1,251,000 $ - $ (703,000) $ 47,104,000  Cost of sales 15,105,000 14,436,000 2,281,000 929,000 - (51,000) 32,700,000  Gross profit 2,750,000 11,783,000 201,000 322,000 - (652,000) 14,404,000  Selling, general and  administrative expenses 6,463,000 10,948,000 1,410,000 2,533,000 - (652,000) 20,702,000  Operating (loss) income (3,713,000) 835,000 (1,209,000) (2,211,000) - - (6,298,000)  Other income 15,000 3,000 3,000 31,000 194,000 - 246,000  Income (loss) before income tax $ (3,698,000) $ 838,000 $ (1,206,000) $ (2,180,000) $ 194,000 $ - $ (6,052,000)   Depreciation and amortization $ 1,173,000 $ 337,000 $ 144,000 $ 41,000 $ - $ - $ 1,695,000   Capital expenditures $ 508,000 $ 69,000 $ - $ 109,000 $ 14,000 $ - $ 700,000         Transition JDL Intersegment  Suttle Networks Technologies Net2Edge Other Eliminations Total  Nine Months Ended September 30, 2017  Sales $ 24,888,000 $ 27,831,000 $ 10,504,000 $ 719,000 $ - $ (661,000) $ 63,281,000  Cost of sales 24,447,000 15,667,000 7,699,000 262,000 - (74,000) 48,001,000  Gross profit 441,000 12,164,000 2,805,000 457,000 - (587,000) 15,280,000  Selling, general and  administrative expenses 6,775,000 11,481,000 1,604,000 2,244,000 - (587,000) 21,517,000  Impairment loss - - 1,463,000 154,000 - - 1,617,000  Restructuring expense 2,326,000 - - - - - 2,326,000  Operating (loss) income (8,660,000) 683,000 (262,000) (1,941,000) - - (10,180,000)  Other income (expense) (80,000) 10,000 - 34,000 21,000 - (15,000)  Income (loss) before income tax $ (8,740,000) $ 693,000 $ (262,000) $ (1,907,000) $ 21,000 $ - $ (10,195,000)   Depreciation and amortization $ 1,695,000 $ 518,000 $ 230,000 $ 47,000 $ - $ - $ 2,490,000   Capital expenditures $ 100,000 $ 199,000 $ 5,000 $ 63,000 $ 23,000 $ - $ 390,000 

Net Loss Per Share

Net Loss Per Share	9 Months Ended
	Sep. 30, 2018
Net Loss Per Share [Abstract]
Net Loss Per Share	NOTE 12 – NET LOSS PER SHARE  Basic net income 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 nine month periods ended September 30, 2018 and 2017 . The Company calculates the dilutive effect of outstanding options using the treasury stock method. Due to the net losses in the first three and nine months of 2018 and 2017 , there was no dilutive impact from stock options or unvested shares. Options totaling 1,144,607 and 1,351,772 were excluded from the calculation of diluted earnings per share for the three and nine months ended September 30, 2018 because the exercise price was greater than the average market price of common stock during the period and deferred stock awards totaling 309,819 shares would not have been included for the three and nine months ended September 30, 2018 because of unmet performance conditions. Options totaling 1,145,417 were excluded from the calculation of diluted earnings per share for the three and nine months ended September 30 , 2017 because the exercise price was greater than the average market price of common stock during the period and deferred stock awards totaling 181,224 shares would not have been included for the three and nine months ended September 30 , 2017 because of unmet performance conditions.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2018
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. As discussed in Note 6, we tested our goodwill for impairment as of April 1, 2017. As part of this impairment testing, the Company determined the fair value of the net assets of the JDL Technologies reporting unit, based primarily on discounted cash flows and forecasted future operating results, which represent Level 3 inputs. As a result of our analysis, the Company recorded a non-cash impairment charge of $1,463,000 to fully impair goodwill. Financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2018 and December 31, 2017 , are summarized below:     September 30, 2018   Level 1 Level 2 Level 3 Total Fair Value   Cash equivalents:  Money Market Funds $ 6,763,000 $ - $ - $ 6,763,000  Subtotal 6,763,000 - - 6,763,000   Short-term investments:  Commercial Paper - 2,618,000 - 2,618,000  Subtotal - 2,618,000 - 2,618,000   Total $ 6,763,000 $ 2,618,000 $ - $ 9,381,000      December 31, 2017   Level 1 Level 2 Level 3 Total Fair Value   Cash equivalents:  Money Market Funds $ 6,193,000 $ - $ - $ 6,193,000  Subtotal 6,193,000 - - 6,193,000   Short-term investments:  Commercial Paper - 997,000 - 997,000  Corporate Notes/Bonds - 4,544,000 - 4,544,000  Subtotal - 5,541,000 - 5,541,000   Total $ 6,193,000 $ 5,541,000 $ - $ 11,734,000  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 nine months ended September 30, 2018 .

Restructuring

Restructuring	9 Months Ended
	Sep. 30, 2018
Restructuring [Abstract]
Restructuring	NOTE 14 – RESTRUCTURING  During the nine months ended September 30, 2017 , the Company recorded $ 2,326,000 in restructuring expense. This consisted of severance and related benefits costs due to the restructuring within the Suttle business segment, including ongoing costs related to the closure of the Costa Rica facility. The facility was completely closed during 2017. The Company had no restructuring expenses for the nine month period ended September 30, 2018 . 

General Commitments

General Commitments	9 Months Ended
	Sep. 30, 2018
Contingencies and General Commitments [Abstract]
General Commitments	NOTE 15 – 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, Suttle and JDL Technologies. The closing of the transaction is subject to a number of closing conditions, including the buyer’s ability to complete due diligence within 180 days and the buyers ability to obtain regulatory approval for its intended use of the property. If the sale proceeds, the Company currently expects the transaction to close within the second or third quarter of 2019. 

Recent Accounting Pronouncement

Recent Accounting Pronouncements	9 Months Ended
	Sep. 30, 2018
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	 NOTE 16 – RECENT ACCOUNTING PRONOUNCEMENTS  In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers”. The new guidance replaced all current U.S. GAAP guidance on this topic and eliminated all industry-specific guidance. According to the new guidance, revenue is recognized when promised goods or services are transferred to customers in an amount that reflects the consideration the Company expects to receive in exchange for those goods or services. As a result of the FASB’s July 2015 deferral of the standard’s required implementation date, the guidance is effective for interim and annual reporting periods beginning after December 15, 2017. The Company adopted the accounting standard effective January 1, 2018 using the modified retrospective transition approach. Please see Note 2 for the required disclosures related to the impact of adopting this standard and a discussion of the Company’s updated policies related to revenue recognition and accounting for costs to obtain and fulfill a customer contract.  In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)”, which amends existing guidance and requires an entity to recognize both assets and liabilities arising from financing and operating leases, along with additional qualitative and quantitative disclosures. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within that reporting period, and early adoption is permitted. On January 1, 2019, agreements historically disclosed as operating leases are expected to be recognized on the balance sheet. The Company has engaged a third-party consultant to assist with our assessment of the expected impact of the new standard. The impact is not expected to be material to the Company’s consolidated financial statements.  In August 2016, the FASB issued ASU 2016-15, “Statement of Cash Flows (Topics 230), Classification of Certain Cash Receipts and Cash Payments.” This guidance is intended to reduce diversity in practice in how certain cash receipts and cash payments are presented and classified in the Consolidated Statement of Cash Flows by providing guidance on eight specific cash flow issues. The Company adopted this standard as of January 1, 2018 with no material impact to the Consolidated Statement of Cash Flows .  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, 2019, which for us is the first quarter ending March 31, 2020. 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.  In May 2017, FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting." This ASU provides guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting. The amendments in this update should be applied prospectively to an award modified on or after the adoption date. This ASU is effective for annual periods and interim periods within those annual periods beginning after December 15, 2017. The Company adopted the accounting standard effective January 1, 2018 with no material impact to the consolidated financial statements. 

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	NOTE 17 – SUBSEQUENT EVENTS  The Company has evaluated subsequent events through the date of this filing. We do not believe there are any material subsequent events that would require further disclosure . 

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policy)	9 Months Ended
	Sep. 30, 2018
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 through its Suttle, Inc. (“Suttle”) subsidiary and business unit in the manufacture and sale of connectivity infrastructure products for broadband and voice communications, and through its Transition Networks, Inc. (“Transition Networks” or “Transition”) subsidiary and business unit in the manufacture and sale of core media conversion products, Ethernet switches, and other connectivity and data transmission products. Through its JDL Technologies, Inc. (“JDL Technologies” or “JDL”) business unit, CSI provides technology solutions including virtualization, managed services, wired and wireless network design and implementation, and hybrid cloud infrastructure and deployment. Through its Net2Edge Limited (“Net2Edge”) U.K.-based business unit, the Company develops, manufactures and sells products that enable telecommunications carriers to connect legacy networks to high-speed services.   The Company classifies its businesses into four segments corresponding to the Suttle, Transition Networks, JDL Technologies and Net2Edge business units. 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 September 30, 2018 and the related condensed consolidated statements of loss and comprehensive loss, and the condensed consolidated statements of cash flows for the periods ended September 30, 2018 and 2017 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 September 30, 2018 and 2017 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, 2017 Annual Report to Shareholders on Form 10-K. The results of operations for the period ended September 30, 2018 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, 2017 , 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 (loss)/gain on securities Accumulated Other Comprehensive Loss  December 31, 2017 $ (625,000) $ 12,000 $ (613,000)   Net current period change (87,000) 1,000 (86,000)   September 30, 2018 $ (712,000) $ 13,000 $ (699,000) 

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2018
Summary of Significant Accounting Policies [Abstract]
Components of Accumulated Other Comprehensive Loss	    Foreign Currency Translation Unrealized (loss)/gain on securities Accumulated Other Comprehensive Loss  December 31, 2017 $ (625,000) $ 12,000 $ (613,000)   Net current period change (87,000) 1,000 (86,000)   September 30, 2018 $ (712,000) $ 13,000 $ (699,000) 

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Sep. 30, 2018
Revenue Recognition [Abstract]
Schedule of Impact from Initial Application Period Cumulative Effect Transition	   As of September 30, 2018  As Reported Balances without adoption of ASC 606 Effect of Change Higher/(Lower)   Trade accounts receivable $ 11,448,000 $ 10,264,000 $ 1,184,000  Inventories 16,130,000 16,735,000 (605,000)  Other current assets 1,364,000 759,000 605,000  Other accrued liabilities 3,016,000 1,832,000 1,184,000       Three Months Ended September 30, 2018  As Reported Balances without adoption of ASC 606 Effect of Change Higher/(Lower)   Revenue $ 15,292,000 $ 15,473,000 $ (181,000)  Gross Profit 5,241,000 5,422,000 (181,000)  Selling, general and administrative expenses 6,842,000 7,023,000 (181,000)  Operating Loss (1,602,000) (1,602,000) -       Nine Months Ended September 30, 2018  As Reported Balances without adoption of ASC 606 Effect of Change Higher/(Lower)   Revenue $ 47,104,000 $ 47,576,000 $ (472,000)  Gross Profit 14,404,000 14,876,000 (472,000)  Selling, general and administrative expenses 20,702,000 21,174,000 (472,000)  Operating Loss (6,298,000) (6,298,000) -  
Schedule of Disaggregation of Revenues	For Suttle, we analyze revenues by product and customer group, which is as follows for the three and nine months ended September 30, 2018 and 2017 :     Suttle Sales by Product Group  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  Structured cabling and connecting system products $ 4,748,000 $ 7,230,000 $ 16,490,000 $ 22,798,000  DSL and other products 261,000 306,000 1,365,000 2,090,000  $ 5,009,000 $ 7,536,000 $ 17,855,000 $ 24,888,000       Suttle Sales by Customer Group  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  Communication service providers $ 4,258,000 $ 6,912,000 $ 14,705,000 $ 22,468,000  International 350,000 173,000 1,696,000 545,000  Distributors 401,000 451,000 1,454,000 1,875,000  $ 5,009,000 $ 7,536,000 $ 17,855,000 $ 24,888,000   For Transition Networks, we analyze revenue by region and product group, which is as follows for the three and nine months ended September 30, 2018 and 2017 :     Transition Networks Sales by Region  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  North America $ 8,015,000 $ 7,404,000 $ 22,107,000 $ 22,560,000  Rest of World 690,000 1,301,000 2,530,000 3,751,000  Europe, Middle East, Africa ("EMEA") 526,000 622,000 1,582,000 1,520,000  $ 9,231,000 $ 9,327,000 $ 26,219,000 $ 27,831,000       Transition Networks Sales by Product Group  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  Media converters $ 5,059,000 $ 4,950,000 $ 14,735,000 $ 16,004,000  Ethernet switches and adapters 2,563,000 2,263,000 6,650,000 5,750,000  Other products 1,609,000 2,114,000 4,834,000 6,077,000  $ 9,231,000 $ 9,327,000 $ 26,219,000 $ 27,831,000   For JDL, we analyze revenue by customer group, which is as follows for the three and nine months ended September 30, 2018 and 2017 :     JDL Revenue by Customer Group  Three Months Ended September 30 Nine Months Ended September 30  2018 2017 2018 2017  Education $ 185,000 $ 2,870,000 $ 574,000 $ 8,085,000  Healthcare and commercial clients 674,000 743,000 1,908,000 2,419,000  $ 859,000 $ 3,613,000 $ 2,482,000 $ 10,504,000  

Cash Equivalents and Investme_2

Cash Equivalents and Investments (Tables)	9 Months Ended
	Sep. 30, 2018
Cash Equivalents and Investments [Abstract]
Schedule of Cash Equivalents and Available-for-Sale Securities	   September 30, 2018  Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Short-Term Investments Long-Term Investments   Cash equivalents:  Money Market funds $ 6,763,000 $ - $ - $ 6,763,000 $ 6,763,000 $ - $ -  Subtotal 6,763,000 - - 6,763,000 6,763,000 - -   Investments:  Commercial Paper 2,619,000 - (1,000) 2,618,000 - 2,618,000 -  Subtotal 2,619,000 - (1,000) 2,618,000 - 2,618,000 -    Total $ 9,382,000 $ - $ (1,000) $ 9,381,000 $ 6,763,000 $ 2,618,000 $ -         December 31, 2017  Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Cash Equivalents Short-Term Investments Long-Term Investments   Cash equivalents:  Money Market funds $ 6,193,000 $ - $ - $ 6,193,000 $ 6,193,000 $ - $ -  Subtotal 6,193,000 - - 6,193,000 6,193,000 - -   Investments:  Commercial Paper 997,000 - - 997,000 - 997,000 -  Corporate Notes/Bonds 4,545,000 - (1,000) 4,544,000 - 4,544,000 -  Subtotal 5,542,000 - (1,000) 5,541,000 - 5,541,000 -    Total $ 11,735,000 $ - $ (1,000) $ 11,734,000 $ 6,193,000 $ 5,541,000 $ - 
Schedule of Estimated Fair Value of Available-for-Sale Securities	   Amortized Cost Estimated Market Value   Due within one year $ 2,619,000 $ 2,618,000 

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2018
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, 2017 1,172,659 $ 8.63 4.55  Awarded 218,665 3.67  Exercised - -  Forfeited (39,552) 11.38  Outstanding – September 30, 2018 1,351,772 7.75 4.33   Exercisable at September 30, 2018 848,805 $ 9.52 3.51  Expected to vest September 30, 2018 1,351,772 7.75 4.33 
Schedule of Changes in the Number of Deferred Stock Shares Under the Incentive Plan	   Weighted Average  Grant Date  Shares Fair Value  Outstanding – December 31, 2017 190,524 $ 6.60  Granted 163,002 3.56  Vested (29,708) 10.51  Forfeited (9,424) 11.48  Outstanding – September 30, 2018 314,394 4.51 
Schedule of Changes in Restricted Stock Units Outstanding	   Weighted Average  Grant Date  Shares Fair Value  Outstanding – December 31, 2017 13,793 $ 6.33  Granted - -  Issued (13,793) 6.33  Forfeited - -  Outstanding – September 30, 2018 - - 

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Sep. 30, 2018
Inventories [Abstract]
Schedule of Inventories	   September 30 December 31  2018 2017  Finished goods $ 9,643,000 $ 8,056,000  Raw and processed materials 6,487,000 5,928,000  $ 16,130,000 $ 13,984,000 

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2018
Goodwill and Intangible Assets [Abstract]
Schedule of Finite-Lived Intangible Assets	   September 30, 2018  Gross Carrying Amount Accumulated Amortization Impairment loss Foreign Currency Translation Net   Trademarks $ 98,000 $ (73,000) $ - $ (17,000) $ 8,000  Customer relationships 491,000 (230,000) (154,000) (107,000) -  Technology 229,000 (189,000) - (40,000) -  $ 818,000 $ (492,000) $ (154,000) $ (164,000) $ 8,000      December 31, 2017  Gross Carrying Amount Accumulated Amortization Impairment loss Foreign Currency Translation Net   Trademarks $ 98,000 $ (66,000) $ - $ (15,000) $ 17,000  Customer relationships 491,000 (230,000) (154,000) (107,000) -  Technology 229,000 (189,000) - (40,000) -  $ 818,000 $ (485,000) $ (154,000) $ (162,000) $ 17,000 
Schedule of Estimated Future Amortization Expense	   Year Ending December 31:  2018 $ 1,000  2019 2,000  2020 2,000  2021 2,000  2022 1,000 

Warranty (Tables)

Warranty (Tables)	9 Months Ended
	Sep. 30, 2018
Warranty [Abstract]
Schedule of Warranty	   2018 2017  Beginning balance $ 603,000 $ 600,000  Amounts charged (credited) to expense 116,000 43,000  Actual warranty costs paid (75,000) (57,000)  Ending balance $ 644,000 $ 586,000 

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2018
Segment Information [Abstract]
Schedule of Segment Information	   Transition JDL Intersegment  Suttle Networks Technologies Net2Edge Other Eliminations Total  Three Months Ended September 30, 2018  Sales $ 5,009,000 $ 9,231,000 $ 859,000 $ 405,000 $ - $ (212,000) $ 15,292,000  Cost of sales 4,093,000 4,883,000 712,000 365,000 - (2,000) 10,051,000  Gross profit (loss) 916,000 4,348,000 147,000 40,000 - (210,000) 5,241,000  Selling, general and  administrative expenses 2,053,000 3,745,000 446,000 809,000 - (210,000) 6,843,000  Operating (loss) income (1,137,000) 603,000 (299,000) (769,000) - - (1,602,000)  Other income (expense) (5,000) (1,000) - 19,000 42,000 - 55,000  Income (loss) before income tax $ (1,142,000) $ 602,000 $ (299,000) $ (750,000) $ 42,000 $ - $ (1,547,000)   Depreciation and amortization $ 374,000 $ 96,000 $ 40,000 $ 13,000 $ - $ - $ 523,000   Capital expenditures $ 48,000 $ 31,000 $ - $ (7,000) $ 14,000 $ - $ 86,000   Assets $ 13,277,000 $ 17,644,000 $ 1,177,000 $ 2,421,000 $ 17,764,000 $ (27,000) $ 52,256,000       Transition JDL Intersegment  Suttle Networks Technologies Net2Edge Other Eliminations Total  Three Months Ended September 30, 2017  Sales $ 7,536,000 $ 9,327,000 $ 3,613,000 $ 182,000 $ - $ (245,000) $ 20,413,000  Cost of sales 8,967,000 5,342,000 2,730,000 122,000 - (52,000) 17,109,000  Gross profit (1,431,000) 3,985,000 883,000 60,000 - (193,000) 3,304,000  Selling, general and  administrative expenses 2,239,000 3,809,000 471,000 836,000 - (193,000) 7,162,000  Impairment loss - - - - - - -  Restructuring expense 796,000 - - - - - 796,000  Operating (loss) income (4,466,000) 176,000 412,000 (776,000) - - (4,654,000)  Other income (expense) - 17,000 - 1,000 5,000 - 23,000  Income (loss) before income tax $ (4,466,000) $ 193,000 $ 412,000 $ (775,000) $ 5,000 $ - $ (4,631,000)   Depreciation and amortization $ 525,000 $ 158,000 $ 76,000 $ 9,000 $ - $ - $ 768,000   Capital expenditures $ 52,000 $ 174,000 $ - $ 3,000 $ 23,000 $ - $ 252,000   Assets $ 21,389,000 $ 12,593,000 $ 4,809,000 $ 1,258,000 $ 21,239,000 $ (27,000) $ 61,261,000        Transition JDL Intersegment  Suttle Networks Technologies Net2Edge Other Eliminations Total  Nine Months Ended September 30, 2018  Sales $ 17,855,000 $ 26,219,000 $ 2,482,000 $ 1,251,000 $ - $ (703,000) $ 47,104,000  Cost of sales 15,105,000 14,436,000 2,281,000 929,000 - (51,000) 32,700,000  Gross profit 2,750,000 11,783,000 201,000 322,000 - (652,000) 14,404,000  Selling, general and  administrative expenses 6,463,000 10,948,000 1,410,000 2,533,000 - (652,000) 20,702,000  Operating (loss) income (3,713,000) 835,000 (1,209,000) (2,211,000) - - (6,298,000)  Other income 15,000 3,000 3,000 31,000 194,000 - 246,000  Income (loss) before income tax $ (3,698,000) $ 838,000 $ (1,206,000) $ (2,180,000) $ 194,000 $ - $ (6,052,000)   Depreciation and amortization $ 1,173,000 $ 337,000 $ 144,000 $ 41,000 $ - $ - $ 1,695,000   Capital expenditures $ 508,000 $ 69,000 $ - $ 109,000 $ 14,000 $ - $ 700,000         Transition JDL Intersegment  Suttle Networks Technologies Net2Edge Other Eliminations Total  Nine Months Ended September 30, 2017  Sales $ 24,888,000 $ 27,831,000 $ 10,504,000 $ 719,000 $ - $ (661,000) $ 63,281,000  Cost of sales 24,447,000 15,667,000 7,699,000 262,000 - (74,000) 48,001,000  Gross profit 441,000 12,164,000 2,805,000 457,000 - (587,000) 15,280,000  Selling, general and  administrative expenses 6,775,000 11,481,000 1,604,000 2,244,000 - (587,000) 21,517,000  Impairment loss - - 1,463,000 154,000 - - 1,617,000  Restructuring expense 2,326,000 - - - - - 2,326,000  Operating (loss) income (8,660,000) 683,000 (262,000) (1,941,000) - - (10,180,000)  Other income (expense) (80,000) 10,000 - 34,000 21,000 - (15,000)  Income (loss) before income tax $ (8,740,000) $ 693,000 $ (262,000) $ (1,907,000) $ 21,000 $ - $ (10,195,000)   Depreciation and amortization $ 1,695,000 $ 518,000 $ 230,000 $ 47,000 $ - $ - $ 2,490,000   Capital expenditures $ 100,000 $ 199,000 $ 5,000 $ 63,000 $ 23,000 $ - $ 390,000 

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2018
Fair Value Measurements [Abstract]
Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis	   September 30, 2018   Level 1 Level 2 Level 3 Total Fair Value   Cash equivalents:  Money Market Funds $ 6,763,000 $ - $ - $ 6,763,000  Subtotal 6,763,000 - - 6,763,000   Short-term investments:  Commercial Paper - 2,618,000 - 2,618,000  Subtotal - 2,618,000 - 2,618,000   Total $ 6,763,000 $ 2,618,000 $ - $ 9,381,000      December 31, 2017   Level 1 Level 2 Level 3 Total Fair Value   Cash equivalents:  Money Market Funds $ 6,193,000 $ - $ - $ 6,193,000  Subtotal 6,193,000 - - 6,193,000   Short-term investments:  Commercial Paper - 997,000 - 997,000  Corporate Notes/Bonds - 4,544,000 - 4,544,000  Subtotal - 5,541,000 - 5,541,000   Total $ 6,193,000 $ 5,541,000 $ - $ 11,734,000 

Summary Of Significant Accoun_4

Summary Of Significant Accounting Policies (Narrative) (Details)	9 Months Ended
	Sep. 30, 2018segment
Summary of Significant Accounting Policies [Abstract]
Number of segments	4

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Components of Accumulated Other Comprehensive Loss) (Details)	9 Months Ended
	Sep. 30, 2018USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	$ 49,170,727
BALANCE	42,574,115
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	(625,000)
Net current period change	(87,000)
BALANCE	(712,000)
Unrealized (Loss)/Gain On Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	12,000
Net current period change	1,000
BALANCE	13,000
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
BALANCE	(613,379)
Net current period change	(86,000)
BALANCE	$ (699,236)

Revenue Recognition (Narrative)

Revenue Recognition (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Sales	$ 15,291,993	$ 20,412,439	$ 47,103,837	$ 63,280,980
Net2Edge [Member]
Segment Reporting Information [Line Items]
Sales	$ 405,000	$ 182,000	$ 1,251,000	$ 719,000

Revenue Recognition (Schedule o

Revenue Recognition (Schedule of Impact from Initial Application Period Cumulative Effect Transition) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Trade accounts receivable	$ 11,448,146		$ 11,448,146		$ 12,183,217
Inventories	16,130,318		16,130,318		13,984,428
Other current assets	1,363,851		1,363,851		810,532
Other accrued liabilities	3,016,375		3,016,375		$ 1,586,473
Revenues	15,291,993	$ 20,412,439	47,103,837	$ 63,280,980
Gross profit	5,240,574	3,303,907	14,404,278	15,279,612
Selling, general and administrative expenses	6,842,348	7,161,323	20,702,476	21,516,625
Operating loss	(1,601,774)	$ (4,653,647)	(6,298,198)	$ (10,180,263)
Balances without adoption of ASC 606 [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Trade accounts receivable	10,264,000		10,264,000
Inventories	16,735,000		16,735,000
Other current assets	759,000		759,000
Other accrued liabilities	1,832,000		1,832,000
Revenues	15,473,000		47,576,000
Gross profit	5,422,000		14,876,000
Selling, general and administrative expenses	7,023,000		21,174,000
Operating loss	(1,602,000)		(6,298,000)
Accounting Standards Update 2014-09 [Member] | Effect of ChangeHigher/(Lower) [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Trade accounts receivable	1,184,000		1,184,000
Inventories	(605,000)		(605,000)
Other current assets	605,000		605,000
Other accrued liabilities	1,184,000		1,184,000
Revenues	(181,000)		(472,000)
Gross profit	(181,000)		(472,000)
Selling, general and administrative expenses	$ (181,000)		$ (472,000)

Revenue Recognition (Schedule_2

Revenue Recognition (Schedule of Disaggregation of Revenues) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Sales	$ 15,291,993	$ 20,412,439	$ 47,103,837	$ 63,280,980
Suttle [Member]
Disaggregation of Revenue [Line Items]
Sales	5,009,000	7,536,000	17,855,000	24,888,000
Suttle [Member] | Communication Service Providers [Member]
Disaggregation of Revenue [Line Items]
Sales	4,258,000	6,912,000	14,705,000	22,468,000
Suttle [Member] | International [Member]
Disaggregation of Revenue [Line Items]
Sales	350,000	173,000	1,696,000	545,000
Suttle [Member] | Distributors [Member]
Disaggregation of Revenue [Line Items]
Sales	401,000	451,000	1,454,000	1,875,000
Suttle [Member] | Structured Cabling and Connecting System Products [Member]
Disaggregation of Revenue [Line Items]
Sales	4,748,000	7,230,000	16,490,000	22,798,000
Suttle [Member] | DSL and Other Products [Member]
Disaggregation of Revenue [Line Items]
Sales	261,000	306,000	1,365,000	2,090,000
Transition Networks [Member]
Disaggregation of Revenue [Line Items]
Sales	9,231,000	9,327,000	26,219,000	27,831,000
Transition Networks [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Sales	8,015,000	7,404,000	22,107,000	22,560,000
Transition Networks [Member] | Rest of World [Member]
Disaggregation of Revenue [Line Items]
Sales	690,000	1,301,000	2,530,000	3,751,000
Transition Networks [Member] | Europe, Middle East, Africa ("EMEA") [Member]
Disaggregation of Revenue [Line Items]
Sales	526,000	622,000	1,582,000	1,520,000
Transition Networks [Member] | Media Converters [Member]
Disaggregation of Revenue [Line Items]
Sales	5,059,000	4,950,000	14,735,000	16,004,000
Transition Networks [Member] | Ethernet Switches and Adapters [Member]
Disaggregation of Revenue [Line Items]
Sales	2,563,000	2,263,000	6,650,000	5,750,000
Transition Networks [Member] | Other Products [Member]
Disaggregation of Revenue [Line Items]
Sales	1,609,000	2,114,000	4,834,000	6,077,000
JDL Technologies [Member]
Disaggregation of Revenue [Line Items]
Sales	859,000	3,613,000	2,482,000	10,504,000
JDL Technologies [Member] | Education [Member]
Disaggregation of Revenue [Line Items]
Sales	185,000	2,870,000	574,000	8,085,000
JDL Technologies [Member] | Healthcare and Commercial Clients [Member]
Disaggregation of Revenue [Line Items]
Sales	$ 674,000	$ 743,000	$ 1,908,000	$ 2,419,000

Cash Equivalents and Investme_3

Cash Equivalents and Investments (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash Equivalents and Investments [Abstract]
Gross realized gains (losses)	$ 0	$ 0

Cash Equivalents and Investme_4

Cash Equivalents and Investments (Schedule of Cash Equivalents and Available-for-Sale Securities) (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 9,382,000	$ 11,735,000
Gross Unrealized Losses	(1,000)	(1,000)
Fair Value	9,381,000	11,734,000
Cash Equivalents	6,763,000	6,193,000
Short-Term Investments	2,618,322	5,540,744
Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	6,763,000	6,193,000
Fair Value	6,763,000	6,193,000
Cash Equivalents	6,763,000	6,193,000
Cash Equivalents [Member] | Money Market Funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	6,763,000	6,193,000
Fair Value	6,763,000	6,193,000
Cash Equivalents	6,763,000	6,193,000
Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,619,000	5,542,000
Gross Unrealized Losses	(1,000)	(1,000)
Fair Value	2,618,000	5,541,000
Short-Term Investments	2,618,000	5,541,000
Investments [Member] | Commercial Paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	2,619,000	997,000
Gross Unrealized Losses	(1,000)
Fair Value	2,618,000	997,000
Short-Term Investments	$ 2,618,000	997,000
Investments [Member] | Corporate Notes/Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		4,545,000
Gross Unrealized Losses		(1,000)
Fair Value		4,544,000
Short-Term Investments		$ 4,544,000

Cash Equivalents and Investme_5

Cash Equivalents and Investments (Schedule of Estimated Fair Value of Available-for-Sale Securities) (Details) - Investments [Member] $ in Thousands	Sep. 30, 2018USD ($)
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost, Due within one year	$ 2,619
Estimated Market Value, Due within one year	$ 2,618

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - USD ($)	1 Months Ended	4 Months Ended	9 Months Ended		72 Months Ended
	Aug. 31, 2011	Dec. 31, 2011	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017	May 19, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options outstanding			1,351,772		1,172,659
Aggregate intrinsic value of options outstanding			$ 0
Intrinsic value of all options exercised			0
Net cash proceeds from exercise of stock options			0	$ 0
Share based compensation expense before income taxes			156,214	327,261
Share based compensation expense after income taxes			123,000	$ 213,000
Unrecognized compensation expense for awards			$ 187,000
Recognition period for unrecognized compensation expense			2 years 4 months 24 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			208,555
Number of options outstanding			1,630,166
Awards eligible for grant			661,279
2011 Executive Incentive Compensation Plan [Member] | Share-based Compensation Award, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage			25.00%
Stock Option Plan For Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted	0	0	0		0
Award expiration period			10 years
Number of options outstanding			36,000
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			32,152
Key Employees [Member] | 2011 Executive Incentive Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred stock awards granted			163,002
Key Executive Employees [Member] | 2011 Executive Incentive Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted			218,665
Award expiration period			7 years

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	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Stock-Based Compensation [Abstract]
Options, Outstanding - December 31, 2017	1,172,659
Options, Awarded	218,665
Options, Exercised
Options, Forfeited	(39,552)
Options, Outstanding - September 30,2018	1,351,772	1,172,659
Options, Exercisable at September 30,2018	848,805
Options, Expected to vest September 30,2018	1,351,772
Weighted average exercise price per share, Outstanding - December 31, 2017	$ 8.63
Weighted average exercise price per share, Awarded	3.67
Weighted average exercise price per share, Exercised
Weighted average exercise price per share, Forfeited	11.38
Weighted average exercise price per share, Outstanding - September 30,2018	7.75	$ 8.63
Weighted average exercise price per share, Exercisable at September 30,2018	9.52
Weighted average exercise price per share, Expected to vest September 30,2018	$ 7.75
Options, Outstanding - Weighted average remaining contractual term (in years)	4 years 3 months 29 days	4 years 6 months 18 days
Options, Exercisable - Weighted average remaining contractual term (in years)	3 years 6 months 4 days
Options, Expected to vest - Weighted average remaining contractual term (in years)	4 years 3 months 29 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]	9 Months Ended
	Sep. 30, 2018$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding - December 31, 2017 | shares	190,524
Shares, Granted | shares	163,002
Shares, Vested | shares	(29,708)
Shares, Forfeited | shares	(9,424)
Shares, Outstanding - September 30,2018 | shares	314,394
Weighted Average Grant Date Fair Value, Outstanding - December 31, 2017 | $ / shares	$ 6.60
Weighted Average Grant Date Fair Value, Granted | $ / shares	3.56
Weighted Average Grant Date Fair Value, Vested | $ / shares	10.51
Weighted Average Grant Date Fair Value, Forfeited | $ / shares	11.48
Weighted Average Grant Date Fair Value, Outstanding - September 30,2018 | $ / shares	$ 4.51

Stock-Based Compensation (Sch_3

Stock-Based Compensation (Schedule of Changes in Restricted Stock Units Outstanding) (Details) - Restricted Stock Units (RSUs) [Member]	9 Months Ended
	Sep. 30, 2018$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding - December 31, 2017 | shares	13,793
Shares, Granted | shares
Shares, Vested | shares	(13,793)
Shares, Forfeited | shares
Shares, Outstanding - September 30,2018 | shares
Weighted Average Grant Date Fair Value, Outstanding - December 31, 2017 | $ / shares	$ 6.33
Weighted Average Grant Date Fair Value, Granted | $ / shares
Weighted Average Grant Date Fair Value, Vested | $ / shares	6.33
Weighted Average Grant Date Fair Value, Forfeited | $ / shares
Weighted Average Grant Date Fair Value, Outstanding - September 30,2018 | $ / shares

Inventories (Schedule of Invent

Inventories (Schedule of Inventories) (Details) - USD ($)	Sep. 30, 2018	Dec. 31, 2017
Inventories [Abstract]
Finished goods	$ 9,643,000	$ 8,056,000
Raw and processed materials	6,487,000	5,928,000
Inventories	$ 16,130,318	$ 13,984,428

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Narrative) (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Jun. 30, 2017USD ($)	Sep. 30, 2018USD ($)segment	Sep. 30, 2017USD ($)
Goodwill and Intangible Assets [Abstract]
Number of reportable segments | segment		4
Goodwill impairment loss	$ 1,463	$ 1,463
Impairment of intangible assets	$ 154
Amortization expense		$ 9	$ 24

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets (Schedule of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 818	$ 818
Accumulated Amortization	(492)	(485)
Impairment loss	(154)	(154)
Foreign Currency Translation	(164)	(162)
Net	8	17
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	98	98
Accumulated Amortization	(73)	(66)
Impairment loss
Foreign Currency Translation	(17)	(15)
Net	8	17
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	491	491
Accumulated Amortization	(230)	(230)
Impairment loss	(154)	(154)
Foreign Currency Translation	(107)	(107)
Net
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	229	229
Accumulated Amortization	(189)	(189)
Impairment loss
Foreign Currency Translation	(40)	(40)
Net

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets (Schedule of Estimated Future Amortization Expense) (Details)	Sep. 30, 2018USD ($)
Goodwill and Intangible Assets [Abstract]
2,018	$ 1,000
2,019	2,000
2,020	2,000
2,021	2,000
2,022	$ 1,000

Warranty (Details)

Warranty (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Warranty [Abstract]
Product warranty period	5 years
Beginning balance	$ 603	$ 600
Amounts charged (credited) to expense	116	43
Actual warranty costs paid	(75)	(57)
Ending balance	$ 644	$ 586

Debt (Narrative) (Details)

Debt (Narrative) (Details) - Line of Credit [Member] - USD ($)	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
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	$ 8,126,000
Line of credit facility, interest rate at period end	4.30%
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 ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Income Taxes [Abstract]
Uncertain tax benefit positions that would reduce the effective income tax rate if recognized	$ 33,000
Effective tax rate	0.10%	(0.70%)
Federal tax rate	21.00%
Foreign net operating loss carry-forwards and credits	$ 0
Foreign income taxes, net of foreign tax credits	(8.80%)
Uncertain tax positions	$ 0

Segment Information (Narrative)

Segment Information (Narrative) (Details)	9 Months Ended
	Sep. 30, 2018segment
Segment Information [Abstract]
Number of segments	4

Segment Information (Schedule o

Segment Information (Schedule of Segment Information) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
Sales	$ 15,291,993	$ 20,412,439	$ 47,103,837	$ 63,280,980
Cost of sales	10,051,419	17,108,532	32,699,559	48,001,368
Gross profit	5,240,574	3,303,907	14,404,278	15,279,612
Selling, general and administrative expenses	6,842,348	7,161,323	20,702,476	21,516,625
Impairment loss				1,617,389
Restructuring expense		796,231	0	2,325,861
Operating loss	(1,601,774)	(4,653,647)	(6,298,198)	(10,180,263)
Other income (expense)	54,905	22,292	246,020	(14,975)
Loss from operations before income taxes	(1,546,869)	(4,631,355)	(6,052,178)	(10,195,238)
Depreciation and amortization	523,000	768,000	1,695,451	2,489,661
Capital expenditures	86,000	252,000	700,000	390,000
Assets	52,256,280	61,261,000	52,256,280	61,261,000	$ 58,146,261
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Sales	(212,000)	(245,000)	(703,000)	(661,000)
Cost of sales	(2,000)	(52,000)	(51,000)	(74,000)
Gross profit	(210,000)	(193,000)	(652,000)	(587,000)
Selling, general and administrative expenses	(210,000)	(193,000)	(652,000)	(587,000)
Restructuring expense
Operating loss
Other income (expense)
Loss from operations before income taxes
Depreciation and amortization
Capital expenditures
Assets	(27,000)	(27,000)	(27,000)	(27,000)
Suttle [Member]
Segment Reporting Information [Line Items]
Sales	5,009,000	7,536,000	17,855,000	24,888,000
Cost of sales	4,093,000	8,967,000	15,105,000	24,447,000
Gross profit	916,000	(1,431,000)	2,750,000	441,000
Selling, general and administrative expenses	2,053,000	2,239,000	6,463,000	6,775,000
Restructuring expense		796,000		2,326,000
Operating loss	(1,137,000)	(4,466,000)	(3,713,000)	(8,660,000)
Other income (expense)	(5,000)		15,000	(80,000)
Loss from operations before income taxes	(1,142,000)	(4,466,000)	(3,698,000)	(8,740,000)
Depreciation and amortization	374,000	525,000	1,173,000	1,695,000
Capital expenditures	48,000	52,000	508,000	100,000
Assets	13,277,000	21,389,000	13,277,000	21,389,000
Transition Networks [Member]
Segment Reporting Information [Line Items]
Sales	9,231,000	9,327,000	26,219,000	27,831,000
Cost of sales	4,883,000	5,342,000	14,436,000	15,667,000
Gross profit	4,348,000	3,985,000	11,783,000	12,164,000
Selling, general and administrative expenses	3,745,000	3,809,000	10,948,000	11,481,000
Impairment loss
Restructuring expense
Operating loss	603,000	176,000	835,000	683,000
Other income (expense)	(1,000)	17,000	3,000	10,000
Loss from operations before income taxes	602,000	193,000	838,000	693,000
Depreciation and amortization	96,000	158,000	337,000	518,000
Capital expenditures	31,000	174,000	69,000	199,000
Assets	17,644,000	12,593,000	17,644,000	12,593,000
JDL Technologies [Member]
Segment Reporting Information [Line Items]
Sales	859,000	3,613,000	2,482,000	10,504,000
Cost of sales	712,000	2,730,000	2,281,000	7,699,000
Gross profit	147,000	883,000	201,000	2,805,000
Selling, general and administrative expenses	446,000	471,000	1,410,000	1,604,000
Impairment loss				1,463,000
Restructuring expense
Operating loss	(299,000)	412,000	(1,209,000)	(262,000)
Other income (expense)			3,000
Loss from operations before income taxes	(299,000)	412,000	(1,206,000)	(262,000)
Depreciation and amortization	40,000	76,000	144,000	230,000
Capital expenditures				5,000
Assets	1,177,000	4,809,000	1,177,000	4,809,000
Net2Edge [Member]
Segment Reporting Information [Line Items]
Sales	405,000	182,000	1,251,000	719,000
Cost of sales	365,000	122,000	929,000	262,000
Gross profit	40,000	60,000	322,000	457,000
Selling, general and administrative expenses	809,000	836,000	2,533,000	2,244,000
Impairment loss				154,000
Restructuring expense
Operating loss	(769,000)	(776,000)	(2,211,000)	(1,941,000)
Other income (expense)	19,000	1,000	31,000	34,000
Loss from operations before income taxes	(750,000)	(775,000)	(2,180,000)	(1,907,000)
Depreciation and amortization	13,000	9,000	41,000	47,000
Capital expenditures	(7,000)	3,000	109,000	63,000
Assets	2,421,000	1,258,000	2,421,000	1,258,000
Other [Member]
Segment Reporting Information [Line Items]
Sales
Cost of sales
Gross profit
Selling, general and administrative expenses
Impairment loss
Restructuring expense
Operating loss
Other income (expense)	42,000	5,000	194,000	21,000
Loss from operations before income taxes	42,000	5,000	194,000	21,000
Depreciation and amortization
Capital expenditures	14,000	23,000	14,000	23,000
Assets	$ 17,764,000	$ 21,239,000	$ 17,764,000	$ 21,239,000

Net Loss Per Share (Narrative)

Net Loss Per Share (Narrative) (Details) - shares	3 Months Ended				6 Months Ended		9 Months Ended
	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2017	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
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				0	0
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		0	0	0
Shares not included in the computation of diluted earnings per share	1,144,607		1,145,417				1,351,772	1,145,417
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	309,819		181,224				309,819	181,224

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($)	3 Months Ended	9 Months Ended
	Jun. 30, 2017	Sep. 30, 2018
Fair Value Measurements [Abstract]
Goodwill impairment loss	$ 1,463,000	$ 1,463,000
Transfers between levels		$ 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	Sep. 30, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	$ 6,763	$ 6,193
Assets (Liabilities) Net, fair value	9,381	11,734
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	6,763	6,193
Assets (Liabilities) Net, fair value	6,763	6,193
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets (Liabilities) Net, fair value	2,618	5,541
Money Market Funds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	6,763	6,193
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	6,763	6,193
Short-Term Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	2,618	5,541
Short-Term Investments [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	2,618	5,541
Short-Term Investments [Member] | Corporate Notes/Bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		4,544
Short-Term Investments [Member] | Corporate Notes/Bonds [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		4,544
Short-Term Investments [Member] | Commercial Paper [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	2,618	997
Short-Term Investments [Member] | Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	$ 2,618	$ 997

Restructuring (Narrative) (Deta

Restructuring (Narrative) (Details) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring [Abstract]
Restructuring expense	$ 796,231	$ 0	$ 2,325,861

General Commitments (Narrative)

General Commitments (Narrative) (Details)	Aug. 02, 2018USD ($)
Contingencies and General Commitments [Abstract]
Sale of building, purchase agreement, consideration amount	$ 10,000,000
Purchase agreement, buyer to complete due diligence, period	180 days