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Note 3 - Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2016
Notes Tables |
Schedule of Business Acquisitions, by Acquisition [Table Text Block] |
|  | Aggregate Acquisitions
Current assets |  | $ | 40,022 |
Long-term assets |  |  | 10,282 |
Current liabilities |  |  | (19,299 | )
Long-term liabilities |  |  | (556 | )
Deferred Tax Liabilities |  |  | (14,646 | )
Redeemable non-controlling interest |  |  | (10,612 | )
|  | $ | 5,191 |
Note consideration |  | $ | (3,434 | )
Cash consideration, net of cash acquired of $5,002 |  |  | (90,852 | )
Acquisition date fair value of contingent consideration |  |  | (9,998 | )
Total purchase consideration |  | $ | (104,284 | )
Acquired intangible assets |  | $ | 54,438 |
Goodwill |  | $ | 44,655 |
|  | Aggregate
|  | Acquisitions
Current assets |  | $ | 2,502 |
Non-current assets |  |  | 2,000 |
Current liabilities |  |  | (1,689 | )
Long-term liabilities |  |  | (64 | )
Redeemable non-controlling interest |  |  | (1,696 | )
|  | $ | 1,053 |
Cash consideration, net of cash acquired of $175 |  | $ | (12,340 | )
Acquisition date fair value of contingent consideration |  |  | (4,544 | )
Total purchase consideration |  | $ | (16,884 | )
Acquired intangible assets |  | $ | 8,891 |
Goodwill |  | $ | 6,940 |
Business Acquisition, Pro Forma Information [Table Text Block] |
|  | Revenues |  | Net earnings
Actual from acquired entities for 2016 |  | $ | 128,244 |  |  | $ | 2,375 |
Supplemental pro forma for 2016 (unaudited) |  |  | 1,568,434 |  |  |  | 57,053 |
Supplemental pro forma for 2015 (unaudited) |  |  | 1,475,739 |  |  |  | 44,047 |

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