Segment Information (Schedule Of Segment Information) (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
Sep. 30, 2017 |
Jun. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
Dec. 31, 2016 |
|
| Segment Reporting Information [Line Items] | ||||||
| Sales | $ 20,412,439 | $ 25,616,640 | $ 63,280,980 | $ 76,594,526 | ||
| Cost of sales | 17,108,532 | 18,926,042 | 48,001,368 | 55,759,167 | ||
| Gross profit | 3,303,907 | 6,690,598 | 15,279,612 | 20,835,359 | ||
| Selling, general and administrative expenses | 7,161,323 | 7,866,009 | 21,516,625 | 27,550,271 | ||
| Impairment loss | 1,617,389 | |||||
| Pension liability adjustment gains | (4,147,836) | |||||
| Restructuring expense | 796,231 | 2,325,861 | ||||
| Operating loss | (4,653,647) | (1,175,411) | (10,180,263) | (2,567,076) | ||
| Depreciation and amortization | 768,000 | 920,000 | 2,489,661 | 2,754,189 | ||
| Capital expenditures | 252,000 | 675,000 | 390,000 | 1,946,000 | ||
| Assets | 61,260,334 | 76,471,000 | 61,260,334 | 76,471,000 | $ 73,177,016 | |
| Intersegment Eliminations [Member] | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Sales | (245,000) | (264,000) | (661,000) | (918,000) | ||
| Cost of sales | (52,000) | (16,000) | (74,000) | (157,000) | ||
| Gross profit | (193,000) | (248,000) | (587,000) | (761,000) | ||
| Selling, general and administrative expenses | (193,000) | (248,000) | (587,000) | (742,000) | ||
| Operating loss | (19,000) | |||||
| Depreciation and amortization | ||||||
| Capital expenditures | (19,000) | |||||
| Assets | (27,000) | (26,000) | (27,000) | (26,000) | ||
| Suttle [Member] | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Sales | 7,536,000 | 10,420,000 | 24,888,000 | 33,424,000 | ||
| Cost of sales | 8,967,000 | 10,080,000 | 24,447,000 | 29,939,000 | ||
| Gross profit | (1,431,000) | 340,000 | 441,000 | 3,485,000 | ||
| Selling, general and administrative expenses | 2,239,000 | 2,891,000 | 6,775,000 | 10,038,000 | ||
| Restructuring expense | 796,000 | 2,326,000 | ||||
| Operating loss | (4,466,000) | (2,551,000) | (8,660,000) | (6,553,000) | ||
| Depreciation and amortization | 525,000 | 627,000 | 1,695,000 | 1,819,000 | ||
| Capital expenditures | 52,000 | 593,000 | 100,000 | 1,414,000 | ||
| Assets | 21,389,000 | 36,830,000 | 21,389,000 | 36,830,000 | ||
| Transition Networks [Member] | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Sales | 9,327,000 | 11,789,000 | 27,831,000 | 30,294,000 | ||
| Cost of sales | 5,342,000 | 6,350,000 | 15,667,000 | 17,270,000 | ||
| Gross profit | 3,985,000 | 5,439,000 | 12,164,000 | 13,024,000 | ||
| Selling, general and administrative expenses | 3,809,000 | 3,824,000 | 11,481,000 | 13,224,000 | ||
| Operating loss | 176,000 | 1,615,000 | 683,000 | (200,000) | ||
| Depreciation and amortization | 158,000 | 205,000 | 518,000 | 658,000 | ||
| Capital expenditures | 174,000 | 26,000 | 199,000 | 185,000 | ||
| Assets | 12,593,000 | 17,758,000 | 12,593,000 | 17,758,000 | ||
| JDL Technologies [Member] | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Sales | 3,613,000 | 3,397,000 | 10,504,000 | 12,360,000 | ||
| Cost of sales | 2,730,000 | 2,384,000 | 7,699,000 | 8,025,000 | ||
| Gross profit | 883,000 | 1,013,000 | 2,805,000 | 4,335,000 | ||
| Selling, general and administrative expenses | 471,000 | 563,000 | 1,604,000 | 2,531,000 | ||
| Impairment loss | 1,463,000 | $ 1,463,000 | 1,463,000 | |||
| Operating loss | 412,000 | 450,000 | (262,000) | 1,804,000 | ||
| Depreciation and amortization | 76,000 | 65,000 | 230,000 | 189,000 | ||
| Capital expenditures | 44,000 | 5,000 | 128,000 | |||
| Assets | 4,809,000 | 3,729,000 | 4,809,000 | 3,729,000 | ||
| Net2Edge [Member] | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Sales | 182,000 | 275,000 | 719,000 | 1,434,000 | ||
| Cost of sales | 122,000 | 128,000 | 262,000 | 682,000 | ||
| Gross profit | 60,000 | 147,000 | 457,000 | 752,000 | ||
| Selling, general and administrative expenses | 836,000 | 836,000 | 2,244,000 | 2,499,000 | ||
| Impairment loss | 154,000 | |||||
| Operating loss | (776,000) | (689,000) | (1,941,000) | (1,747,000) | ||
| Depreciation and amortization | 9,000 | 23,000 | 47,000 | 88,000 | ||
| Capital expenditures | 3,000 | 16,000 | 63,000 | 18,000 | ||
| Assets | 1,258,000 | 1,488,000 | 1,258,000 | 1,488,000 | ||
| Other [Member] | ||||||
| Segment Reporting Information [Line Items] | ||||||
| Sales | ||||||
| Cost of sales | ||||||
| Gross profit | ||||||
| Selling, general and administrative expenses | ||||||
| Pension liability adjustment gains | (4,148,000) | |||||
| Operating loss | 4,148,000 | |||||
| Depreciation and amortization | ||||||
| Capital expenditures | 23,000 | (4,000) | 23,000 | 220,000 | ||
| Assets | $ 21,239,000 | $ 16,692,000 | $ 21,239,000 | $ 16,692,000 | ||