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Note 6 - Goodwill and Other Intangible Assets, Net (Tables) | 3 Months Ended
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Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill [Table Text Block] | All of our goodwill and other intangible assets relate to our Services segment. The following table shows the changes in the carrying amount of goodwill for the year-to-date periods ended March 31, 2018 and December 31, 2017:
(In thousands) | Goodwill |  | Accumulated Impairment Losses |  | Net
Balance at December 31, 2016 | $ | 197,265 |  |  | $ | (2,095 | ) |  | $ | 195,170 |
Goodwill acquired | 126 |  |  | — |  |  | 126 |
Impairment losses | — |  |  | (184,374 | ) |  | (184,374 | )
Balance at December 31, 2017 | 197,391 |  |  | (186,469 | ) |  | 10,922 |
Goodwill acquired | — |  |  | — |  |  | — |
Impairment losses | — |  |  | — |  |  | — |
Balance at March 31, 2018 | $ | 197,391 |  |  | $ | (186,469 | ) |  | $ | 10,922 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] | The following is a summary of the gross and net carrying amounts and accumulated amortization of our other intangible assets as of the periods indicated:
| March 31, 2018
(In thousands) | Original Amount Acquired |  | Accumulated Amortization and Impairment |  | Net Carrying Amount
Client relationships (1) | $ | 82,530 |  |  | $ | (43,254 | ) |  | $ | 39,276 |
Technology (2) | 15,250 |  |  | (9,457 | ) |  | 5,793 |
Trade name and trademarks | 8,340 |  |  | (3,218 | ) |  | 5,122 |
Client backlog | 6,680 |  |  | (6,343 | ) |  | 337 |
Non-competition agreements | 185 |  |  | (170 | ) |  | 15 |
Total | $ | 112,985 |  |  | $ | (62,442 | ) |  | $ | 50,543 |
| December 31, 2017
(In thousands) | Original Amount Acquired |  | Accumulated Amortization |  | Net Carrying Amount
Client relationships (1) | $ | 82,530 |  |  | $ | (41,596 | ) |  | $ | 40,934 |
Technology (2) | 15,250 |  |  | (8,922 | ) |  | 6,328 |
Trade name and trademarks | 8,340 |  |  | (3,003 | ) |  | 5,337 |
Client backlog | 6,680 |  |  | (6,006 | ) |  | 674 |
Non-competition agreements | 185 |  |  | (168 | ) |  | 17 |
Total | $ | 112,985 |  |  | $ | (59,695 | ) |  | $ | 53,290 |
______________________
(1) | Includes an impairment charge of $14.9 million in the quarter ended June 30, 2017.
(2) | Includes an impairment charge of $0.9 million in the quarter ended June 30, 2017.
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | The estimated aggregate amortization expense for the remainder of 2018 and thereafter is as follows (in thousands):
2018 | $ | 7,569 |
2019 | 8,790 |
2020 | 7,412 |
2021 | 5,833 |
2022 | 5,081 |
2023 | 4,428 |
Thereafter | 11,430 |
Total | $ | 50,543 |

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