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Note 7 - Goodwill and Other Intangible Assets, Net (Tables) | 12 Months Ended
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Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill [Table Text Block] | The following table shows the changes in the carrying amount of goodwill for the years ended December 31, 2015 and 2014:
(In thousands) | Goodwill |  | Accumulated Impairment Losses |  | Net
Balance at December 31, 2013 | $ | 2,095 |  |  | $ | — |  |  | $ | 2,095 |
Goodwill acquired | 191,932 |  |  | — |  |  | 191,932 |
Impairment losses | — |  |  | (2,095 | ) |  | (2,095 | )
Balance at December 31, 2014 | 194,027 |  |  | (2,095 | ) |  | 191,932 |
Goodwill acquired | 3,238 |  |  | — |  |  | 3,238 |
Impairment losses | — |  |  | — |  |  | — |
Balance at December 31, 2015 | $ | 197,265 |  |  | $ | (2,095 | ) |  | $ | 195,170 |
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [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 and for the year to date periods indicated:
| December 31, 2015
(In thousands) | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships | $ | 83,471 |  |  | $ | (11,038 | ) |  | $ | 72,433 |
Technology | 15,100 |  |  | (2,949 | ) |  | 12,151 |
Trade name and trademarks | 8,340 |  |  | (1,243 | ) |  | 7,097 |
Client backlog | 6,680 |  |  | (4,184 | ) |  | 2,496 |
Non-competition agreements | 185 |  |  | (115 | ) |  | 70 |
Total | $ | 113,776 |  |  | $ | (19,529 | ) |  | $ | 94,247 |
| December 31, 2014
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Customer relationships | $ | 79,203 |  |  | $ | (2,917 | ) |  | $ | 76,286 |
Technology | 8,970 |  |  | (797 | ) |  | 8,173 |
Trade name and trademarks | 7,860 |  |  | (393 | ) |  | 7,467 |
Client backlog | 6,680 |  |  | (2,406 | ) |  | 4,274 |
Non-competition agreements | 145 |  |  | (37 | ) |  | 108 |
Total | $ | 102,858 |  |  | $ | (6,550 | ) |  | $ | 96,308 |
For tax purposes, substantially all of the goodwill and other intangible assets are expected to be deductible and amortized over a period of 15 years. For financial reporting purposes, other intangible assets with finite lives will be amortized over their applicable estimated useful lives in a manner that approximates the pattern of expected economic benefit from each intangible asset, as follows:
| Estimated Useful Life
Client relationships | 3 years | - | 15 years
Technology | 3 years | - | 8 years
Trademark |  |  | 10 years
Client backlog | 3 years | - | 5 years
Non-competition agreements | 2 years | - | 3 years
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] | The estimated aggregate amortization expense for 2016 and thereafter is as follows (in thousands):
2016 | $ | 13,138 |
2017 | 12,492 |
2018 | 11,845 |
2019 | 10,609 |
2020 | 9,058 |
Thereafter | 37,105 |
Total | $ | 94,247 |

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- Definition Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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