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Segment Reporting and Concentrations (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | $ 14,120 | $ 14,953 |  |
Income (loss) before provision for income taxes |  | 306 | (1,383) |  |
Total assets |  | 46,555 |  | $ 47,871 |
Goodwill |  | 2,834 | 2,747 | 2,832 | $ 2,734
Before Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income (loss) before provision for income taxes | [1] | 306 | (1,383) |  |
After Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income (loss) before provision for income taxes | [2] | 306 | (1,383) |  |
DDS [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 10,477 | 11,633 |  |
Total assets |  | 23,120 |  | 26,173 |
Goodwill |  | 675 |  | 675 |
DDS [Member] | Before Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income (loss) before provision for income taxes | [1] | 656 | (179) |  |
DDS [Member] | After Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income (loss) before provision for income taxes | [2] | 590 | (725) |  |
Synodex [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 981 | 724 |  |
Total assets |  | 466 |  | 678 |
Synodex [Member] | Before Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income (loss) before provision for income taxes | [1] | (35) | (1,042) |  |
Synodex [Member] | After Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income (loss) before provision for income taxes | [2] | 7 | (506) |  |
Agility [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues |  | 2,662 | 2,596 |  |
Total assets |  | 22,969 |  | 21,020 |
Goodwill |  | 2,159 |  | $ 2,157 |
Agility [Member] | Before Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income (loss) before provision for income taxes | [1] | (315) | (162) |  |
Agility [Member] | After Intersegment Eliminations [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Income (loss) before provision for income taxes | [2] | $ (291) | $ (152) |  |
[1] | Before elimination of inter-segment profits
[2] | After elimination of inter-segment profits

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