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Note 10 - Equity Method Investment (Tables) | 12 Months Ended
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Dec. 31, 2016
Balance Sheet [Member] |
Notes Tables |
Equity Method Investments [Table Text Block] |
(in thousands) |  | As of the years ended December 31, |
|  | 2016 |  |  | 2015 |
Current Assets |  | $ | 14,320 |  |  | $ | 14,275 |
Non-current Assets |  |  | 146,081 |  |  |  | 125,782 |
Current Liabilities |  |  | 34,766 |  |  |  | 29,644 |
Non-current Liabilities |  |  | 96,140 |  |  |  | 84,516 |
Total Equity |  | $ | 29,495 |  |  | $ | 25,897 |
Income Statement [Member] |
Notes Tables |
Equity Method Investments [Table Text Block] |
(in thousands) |  | As of the years ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Revenue |  | $ | 94,432 |  |  | $ | 104,838 |  |  | $ | 90,197 |
Operating Expenses |  |  | 83,475 |  |  |  | 91,644 |  |  |  | 79,771 |
Operating Income |  |  | 10,957 |  |  |  | 13,194 |  |  |  | 10,426 |
Net Income |  | $ | 6,598 |  |  | $ | 9,061 |  |  | $ | 7,564 |

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571 + Details
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