Segment Information (Schedule of Segment Information) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Dec. 31, 2017 |
|
| Segment Reporting Information [Line Items] | |||||
| Sales | $ 15,038,159 | $ 22,068,462 | $ 31,811,844 | $ 42,868,541 | |
| Cost of sales | 11,053,074 | 16,057,822 | 22,648,140 | 30,892,836 | |
| Gross profit | 3,985,085 | 6,010,640 | 9,163,704 | 11,975,705 | |
| Selling, general and administrative expenses | 6,707,289 | 7,318,047 | 13,860,128 | 14,355,302 | |
| Impairment loss | 1,617,389 | 1,617,389 | |||
| Restructuring expense | 1,141,992 | 0 | 1,529,630 | ||
| Operating loss | (2,722,204) | (4,066,788) | (4,696,424) | (5,526,616) | |
| Other income (expense) | 69,169 | (51,594) | 191,115 | (37,267) | |
| Loss from operations before income taxes | (2,653,035) | (4,118,382) | (4,505,309) | (5,563,883) | |
| Depreciation and amortization | 541,000 | 849,000 | 1,172,556 | 1,722,382 | |
| Capital expenditures | 348,000 | 100,000 | 612,000 | 138,000 | |
| Assets | 54,938,744 | 67,642,000 | 54,938,744 | 67,642,000 | $ 58,146,261 |
| Intersegment Eliminations [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Sales | (263,000) | (218,000) | (490,000) | (416,000) | |
| Cost of sales | (30,000) | (20,000) | (49,000) | (22,000) | |
| Gross profit | (233,000) | (198,000) | (441,000) | (394,000) | |
| Selling, general and administrative expenses | (233,000) | (198,000) | (441,000) | (394,000) | |
| 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 | 5,873,000 | 8,580,000 | 12,846,000 | 17,352,000 | |
| Cost of sales | 5,414,000 | 7,767,000 | 11,012,000 | 15,480,000 | |
| Gross profit | 459,000 | 813,000 | 1,834,000 | 1,872,000 | |
| Selling, general and administrative expenses | 2,154,000 | 2,325,000 | 4,410,000 | 4,536,000 | |
| Restructuring expense | 1,142,000 | 1,530,000 | |||
| Operating loss | (1,695,000) | (2,654,000) | (2,576,000) | (4,194,000) | |
| Other income (expense) | (4,000) | (69,000) | 20,000 | (80,000) | |
| Loss from operations before income taxes | (1,699,000) | (2,723,000) | (2,556,000) | (4,274,000) | |
| Depreciation and amortization | 386,000 | 579,000 | 799,000 | 1,170,000 | |
| Capital expenditures | 232,000 | 25,000 | 459,000 | 48,000 | |
| Assets | 15,748,000 | 31,292,000 | 15,748,000 | 31,292,000 | |
| Transition Networks [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Sales | 7,834,000 | 9,500,000 | 16,988,000 | 18,504,000 | |
| Cost of sales | 4,327,000 | 5,206,000 | 9,554,000 | 10,325,000 | |
| Gross profit | 3,507,000 | 4,294,000 | 7,434,000 | 8,179,000 | |
| Selling, general and administrative expenses | 3,488,000 | 3,933,000 | 7,203,000 | 7,672,000 | |
| Impairment loss | |||||
| Restructuring expense | |||||
| Operating loss | 19,000 | 361,000 | 231,000 | 507,000 | |
| Other income (expense) | 6,000 | (1,000) | 4,000 | (7,000) | |
| Loss from operations before income taxes | 25,000 | 360,000 | 235,000 | 500,000 | |
| Depreciation and amortization | 100,000 | 173,000 | 241,000 | 360,000 | |
| Capital expenditures | 18,000 | 25,000 | 38,000 | 25,000 | |
| Assets | 15,058,000 | 15,262,000 | 15,058,000 | 15,262,000 | |
| JDL Technologies [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Sales | 913,000 | 4,026,000 | 1,622,000 | 6,891,000 | |
| Cost of sales | 841,000 | 3,065,000 | 1,568,000 | 4,969,000 | |
| Gross profit | 72,000 | 961,000 | 54,000 | 1,922,000 | |
| Selling, general and administrative expenses | 478,000 | 557,000 | 964,000 | 1,133,000 | |
| Impairment loss | 1,463,000 | 1,463,000 | |||
| Restructuring expense | |||||
| Operating loss | (406,000) | (1,059,000) | (910,000) | (674,000) | |
| Other income (expense) | 3,000 | 3,000 | |||
| Loss from operations before income taxes | (403,000) | (1,059,000) | (907,000) | (674,000) | |
| Depreciation and amortization | 41,000 | 77,000 | 105,000 | 154,000 | |
| Capital expenditures | 3,000 | 5,000 | |||
| Assets | 912,000 | 4,122,000 | 912,000 | 4,122,000 | |
| Net2Edge [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Sales | 681,000 | 180,000 | 846,000 | 537,000 | |
| Cost of sales | 501,000 | 40,000 | 563,000 | 140,000 | |
| Gross profit | 180,000 | 140,000 | 283,000 | 397,000 | |
| Selling, general and administrative expenses | 820,000 | 701,000 | 1,724,000 | 1,408,000 | |
| Impairment loss | 154,000 | 154,000 | |||
| Restructuring expense | |||||
| Operating loss | (640,000) | (715,000) | (1,441,000) | (1,165,000) | |
| Other income (expense) | 20,000 | (2,000) | 12,000 | 33,000 | |
| Loss from operations before income taxes | (620,000) | (717,000) | (1,429,000) | (1,132,000) | |
| Depreciation and amortization | 14,000 | 20,000 | 28,000 | 38,000 | |
| Capital expenditures | 98,000 | 43,000 | 115,000 | 60,000 | |
| Assets | 2,468,000 | 1,294,000 | 2,468,000 | 1,294,000 | |
| 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) | 44,000 | 21,000 | 152,000 | 16,000 | |
| Loss from operations before income taxes | 44,000 | 21,000 | 152,000 | 16,000 | |
| Depreciation and amortization | |||||
| Capital expenditures | 4,000 | ||||
| Assets | $ 20,780,000 | $ 15,699,000 | $ 20,780,000 | $ 15,699,000 | |