Segment Information (Schedule Of Segment Information) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Dec. 31, 2014 |
|
| Segment Reporting Information [Line Items] | |||||
| Sales | $ 28,197,661 | $ 33,208,977 | $ 47,742,597 | $ 58,407,383 | |
| Cost of sales | 19,658,792 | 21,115,209 | 34,316,789 | 37,325,598 | |
| Gross profit | 8,539,000 | 12,094,000 | 13,426,000 | 21,082,000 | |
| Selling, general and administrative expenses | 10,256,538 | 9,688,247 | 20,834,714 | 18,690,358 | |
| Restructuring expense | 0 | 0 | 237,838 | ||
| Operating (loss) income | (1,717,669) | 2,405,521 | (7,408,906) | 2,153,589 | |
| Depreciation and amortization | 851,000 | 583,000 | 1,633,260 | 1,143,272 | |
| Capital expenditures | 802,000 | 1,672,000 | 1,655,000 | 2,495,000 | |
| Assets | 97,571,032 | 103,799,000 | 97,571,032 | 103,799,000 | $ 100,286,235 |
| Intersegment Eliminations [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Sales | (223,000) | (223,000) | |||
| Gross profit | (223,000) | (223,000) | |||
| Selling, general and administrative expenses | (223,000) | (223,000) | |||
| Suttle [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Sales | 11,788,000 | 19,006,000 | 22,378,000 | 31,888,000 | |
| Cost of sales | 9,533,000 | 12,731,000 | 18,682,000 | 22,123,000 | |
| Gross profit | 2,255,000 | 6,275,000 | 3,696,000 | 9,765,000 | |
| Selling, general and administrative expenses | 3,504,000 | 3,358,000 | 7,810,000 | 6,496,000 | |
| Operating (loss) income | (1,249,000) | 2,917,000 | (4,114,000) | 3,269,000 | |
| Depreciation and amortization | 546,000 | 315,000 | 1,053,000 | 608,000 | |
| Capital expenditures | 518,000 | 1,295,000 | 1,167,000 | 1,922,000 | |
| Assets | 41,872,000 | 38,304,000 | 41,872,000 | 38,304,000 | |
| Transition Networks [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Sales | 11,915,000 | 11,567,000 | 20,005,000 | 21,317,000 | |
| Cost of sales | 6,508,000 | 6,182,000 | 11,193,000 | 11,224,000 | |
| Gross profit | 5,407,000 | 5,385,000 | 8,812,000 | 10,093,000 | |
| Selling, general and administrative expenses | 5,920,000 | 5,609,000 | 11,382,000 | 10,789,000 | |
| Restructuring expense | 238,000 | ||||
| Operating (loss) income | (513,000) | (224,000) | (2,570,000) | (934,000) | |
| Depreciation and amortization | 267,000 | 231,000 | 514,000 | 461,000 | |
| Capital expenditures | 127,000 | 251,000 | 213,000 | 359,000 | |
| Assets | 26,674,000 | 27,507,000 | 26,674,000 | 27,507,000 | |
| JDL Technologies [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Sales | 4,718,000 | 2,636,000 | 5,583,000 | 5,202,000 | |
| Cost of sales | 3,618,000 | 2,202,000 | 4,442,000 | 3,978,000 | |
| Gross profit | 1,100,000 | 434,000 | 1,141,000 | 1,224,000 | |
| Selling, general and administrative expenses | 1,056,000 | 721,000 | 1,866,000 | 1,405,000 | |
| Operating (loss) income | 44,000 | (287,000) | (725,000) | (181,000) | |
| Depreciation and amortization | 38,000 | 37,000 | 66,000 | 74,000 | |
| Capital expenditures | 127,000 | 8,000 | 170,000 | 18,000 | |
| Assets | 4,212,000 | 3,520,000 | 4,212,000 | 3,520,000 | |
| Other [Member] | |||||
| Segment Reporting Information [Line Items] | |||||
| Capital expenditures | 30,000 | 118,000 | 105,000 | 196,000 | |
| Assets | $ 24,813,000 | $ 34,468,000 | $ 24,813,000 | $ 34,468,000 | |