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Segment Reporting and Concentrations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Revenues |  | $ 14,049 | $ 15,018 | $ 42,439 | $ 45,271 |  |
Income (loss) before provision for income taxes |  | 1,162 | (885) | 1,457 | (2,411) |  |
Total assets |  | 46,108 |  | 46,108 |  | $ 47,871 |
Goodwill |  | 2,122 | 2,839 | 2,122 | 2,839 | 2,832 | $ 2,734
Before Intersegment Eliminations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Income (loss) before provision for income taxes | [1] | 1,162 | (885) | 1,457 | (2,411) |  |
After Intersegment Eliminations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Income (loss) before provision for income taxes | [2] | 1,162 | (885) | 1,457 | (2,411) |  |
DDS [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Revenues |  | 10,756 | 11,841 | 32,059 | 35,614 |  |
Total assets |  | 23,430 |  | 23,430 |  | 26,173 |
Goodwill |  | 0 |  | 0 |  | 675 |
DDS [Member] | Before Intersegment Eliminations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Income (loss) before provision for income taxes | [1] | 1,731 | 887 | 2,843 | 1,870 |  |
DDS [Member] | After Intersegment Eliminations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Income (loss) before provision for income taxes | [2] | 1,673 | 310 | 2,663 | 193 |  |
Synodex [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Revenues |  | 1,013 | 969 | 3,008 | 2,564 |  |
Total assets |  | 495 |  | 495 |  | 678 |
Synodex [Member] | Before Intersegment Eliminations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Income (loss) before provision for income taxes | [1] | 91 | (826) | 144 | (2,618) |  |
Synodex [Member] | After Intersegment Eliminations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Income (loss) before provision for income taxes | [2] | 132 | (270) | 266 | (989) |  |
Agility [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Revenues |  | 2,280 | 2,208 | 7,372 | 7,093 |  |
Total assets |  | 22,183 |  | 22,183 |  | 21,020 |
Goodwill |  | 2,122 |  | 2,122 |  | $ 2,157 |
Agility [Member] | Before Intersegment Eliminations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Income (loss) before provision for income taxes | [1] | (660) | (946) | (1,530) | (1,663) |  |
Agility [Member] | After Intersegment Eliminations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Income (loss) before provision for income taxes | [2] | $ (643) | $ (925) | $ (1,472) | $ (1,615) |  |
[1] | Before elimination of inter-segment profits
[2] | After elimination of inter-segment profits

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