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Note 2 - Acquisitions (Tables) | 6 Months Ended
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Jun. 30, 2020
Notes Tables |
Business Acquisition, Pro Forma Information [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, 2019 |  |  | June 30, 2019 |
Revenue |  | $ | 135,847 |  |  | $ | 270,504 |
Net earnings |  |  | 3,383 |  |  |  | 5,069 |
Earnings per Class A common share - basic and diluted |  |  | 0.26 |  |  |  | 0.39 |
Earnings per Class B common share - basic and diluted |  |  | 0.28 |  |  |  | 0.42 |

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