Information Concerning Industry Segments And Major Customers (Schedule Of Segment Information) (Details) - USD ($) |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Segment Reporting Information [Line Items] | |||||||||||
| Sales | $ 22,759,000 | $ 25,617,000 | $ 26,311,000 | $ 24,666,000 | $ 27,681,000 | $ 32,246,000 | $ 28,198,000 | $ 19,545,000 | $ 99,352,934 | $ 107,669,524 | $ 119,071,439 |
| Cost of sales | 72,771,393 | 76,123,362 | 76,912,881 | ||||||||
| Gross profit | 26,581,000 | 31,546,000 | 42,159,000 | ||||||||
| Selling, general and administrative expenses | 35,185,924 | 40,829,755 | 38,627,801 | ||||||||
| Pension liability adjustments | (4,147,836) | ||||||||||
| Pension settlement costs | 1,222,276 | ||||||||||
| Restructuring expense | 0 | 0 | 237,838 | ||||||||
| Operating (loss) income | (1,891,000) | $ (1,175,000) | $ (2,671,000) | $ 1,280,000 | (3,528,000) | $ 431,000 | $ (1,718,000) | $ (5,691,000) | (4,456,547) | (10,505,869) | 3,292,919 |
| Depreciation and amortization | 3,683,009 | 3,312,587 | 2,482,300 | ||||||||
| Capital expenditures | 2,287,000 | 2,394,000 | 5,577,000 | ||||||||
| Assets | 73,177,016 | 87,916,230 | 73,177,016 | 87,916,230 | 100,286,000 | ||||||
| Intersegment Eliminations [Member] | |||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Sales | (1,153,000) | (906,000) | (390,000) | ||||||||
| Cost of sales | (177,000) | (314,000) | (390,000) | ||||||||
| Gross profit | (976,000) | (592,000) | |||||||||
| Selling, general and administrative expenses | (956,000) | (585,000) | |||||||||
| Operating (loss) income | (20,000) | (7,000) | |||||||||
| Capital expenditures | (20,000) | (7,000) | |||||||||
| Assets | (27,000) | (7,000) | (27,000) | (7,000) | |||||||
| Suttle [Member] | |||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Sales | 42,076,000 | 50,082,000 | 67,331,000 | ||||||||
| Cost of sales | 38,193,000 | 41,232,000 | 46,339,000 | ||||||||
| Gross profit | 3,883,000 | 8,850,000 | 20,992,000 | ||||||||
| Selling, general and administrative expenses | 12,525,000 | 15,285,000 | 14,389,000 | ||||||||
| Operating (loss) income | (8,642,000) | (6,435,000) | 6,603,000 | ||||||||
| Depreciation and amortization | 2,461,000 | 2,125,000 | 1,386,000 | ||||||||
| Capital expenditures | 1,625,000 | 1,710,000 | 4,471,000 | ||||||||
| Assets | 33,555,000 | 38,163,000 | 33,555,000 | 38,163,000 | 38,083,000 | ||||||
| Transition Networks [Member] | |||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Sales | 41,093,000 | 41,469,000 | 41,945,000 | ||||||||
| Cost of sales | 23,607,000 | 23,702,000 | 23,539,000 | ||||||||
| Gross profit | 17,486,000 | 17,767,000 | 18,406,000 | ||||||||
| Selling, general and administrative expenses | 17,180,000 | 19,005,000 | 18,645,000 | ||||||||
| Restructuring expense | 238,000 | ||||||||||
| Operating (loss) income | 306,000 | (1,238,000) | (477,000) | ||||||||
| Depreciation and amortization | 852,000 | 897,000 | 797,000 | ||||||||
| Capital expenditures | 188,000 | 288,000 | 563,000 | ||||||||
| Assets | 17,518,000 | 21,729,000 | 17,518,000 | 21,729,000 | 24,123,000 | ||||||
| JDL Technologies [Member] | |||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Sales | 15,464,000 | 15,672,000 | 8,567,000 | ||||||||
| Cost of sales | 10,245,000 | 10,866,000 | 6,599,000 | ||||||||
| Gross profit | 5,219,000 | 4,806,000 | 1,968,000 | ||||||||
| Selling, general and administrative expenses | 3,296,000 | 3,635,000 | 2,846,000 | ||||||||
| Operating (loss) income | 1,923,000 | 1,171,000 | (878,000) | ||||||||
| Depreciation and amortization | 267,000 | 150,000 | 152,000 | ||||||||
| Capital expenditures | 232,000 | 263,000 | 43,000 | ||||||||
| Assets | 4,767,000 | 5,964,000 | 4,767,000 | 5,964,000 | 3,816,000 | ||||||
| Net2Edge [Member] | |||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Sales | 1,873,000 | 1,353,000 | 1,619,000 | ||||||||
| Cost of sales | 904,000 | 638,000 | 826,000 | ||||||||
| Gross profit | 969,000 | 715,000 | 793,000 | ||||||||
| Selling, general and administrative expenses | 3,141,000 | 3,490,000 | 2,748,000 | ||||||||
| Operating (loss) income | (2,172,000) | (2,775,000) | (1,955,000) | ||||||||
| Depreciation and amortization | 103,000 | 141,000 | 147,000 | ||||||||
| Capital expenditures | 18,000 | 25,000 | 26,000 | ||||||||
| Assets | 1,464,000 | 1,783,000 | 1,464,000 | 1,783,000 | 2,385,000 | ||||||
| Other [Member] | |||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Pension liability adjustments | (4,148,000) | ||||||||||
| Pension settlement costs | 1,222,000 | ||||||||||
| Operating (loss) income | 4,148,000 | (1,222,000) | |||||||||
| Capital expenditures | 244,000 | 115,000 | 474,000 | ||||||||
| Assets | $ 15,900,000 | $ 20,284,000 | $ 15,900,000 | $ 20,284,000 | $ 31,879,000 | ||||||