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Note 3 - Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2017
Notes Tables |
Schedule of Business Acquisitions, by Acquisition [Table Text Block] |
|  | Northern California |  |  |  |  |  |  |
|  | & Nevada |  |  | Other |  |  | Aggregate |
|  | Acquisition |  |  | Acquisitions |  |  | Acquisitions |
Current assets, excluding cash |  | $ | 8,503 |  |  | $ | 5,420 |  |  | $ | 13,923 |
Non-current assets |  |  | 2,268 |  |  |  | 1,117 |  |  |  | 3,385 |
Current liabilities |  |  | (38,481 | ) |  |  | (10,463 | ) |  |  | (48,944 | )
Long-term liabilities |  |  | (10,600 | ) |  |  | (3,084 | ) |  |  | (13,684 | )
Redeemable non-controlling interest |  |  | - |  |  |  | (16,258 | ) |  |  | (16,258 | )
|  | $ | (38,310 | ) |  | $ | (23,268 | ) |  | $ | (61,578 | )
Cash consideration, net of cash acquired of $41,989 |  |  | (22,696 | ) |  |  | (35,978 | ) |  |  | (58,674 | )
Acquisition date fair value of contingent consideration |  |  | (10,412 | ) |  |  | (9,135 | ) |  |  | (19,547 | )
Total purchase consideration |  | $ | (33,108 | ) |  | $ | (45,113 | ) |  | $ | (78,221 | )
Acquired intangible assets |  | $ | 28,800 |  |  | $ | 32,428 |  |  | $ | 61,228 |
Goodwill |  | $ | 42,618 |  |  | $ | 35,953 |  |  | $ | 78,571 |
|  | Aggregate |
|  | Acquisitions |
Current assets, excluding cash |  | $ | 16,643 |
Non-current assets |  |  | 3,719 |
Current liabilities |  |  | (18,556 | )
Long-term liabilities |  |  | (4,207 | )
Non-controlling interests |  |  | (25 | )
|  | $ | (2,426 | )
Cash consideration, net of cash acquired of $10,067 |  |  | (82,073 | )
Acquisition date fair value of contingent consideration |  |  | (12,056 | )
Total purchase consideration |  | $ | (94,129 | )
Acquired intangible assets |  | $ | 43,602 |
Goodwill |  | $ | 52,954 |
Business Acquisition, Pro Forma Information [Table Text Block] |
|  |  | Revenues |  |  |  | Net earnings |
Actual from acquired entities for 2017 |  | $ | 215,174 |  |  | $ | 7,377 |
Supplemental pro forma for 2017 (unaudited) |  |  | 2,299,891 |  |  |  | 93,145 |
Supplemental pro forma for 2016 (unaudited) |  |  | 2,150,685 |  |  |  | 100,105 |

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