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Note 4 - Investments (Tables) | 12 Months Ended
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Dec. 31, 2014
Note 4 - Investments (Tables) [Line Items] |
Equity Method Investments [Table Text Block] |
As of and for the year ended December 31, |  |  |  |  |  |  |  |
(in thousands) |  | 201 4 |  |  | 201 3 |
Revenues |  | $ | 1,782 |  |  | $ | 1,789 |
Operating income (loss) |  |  | (2 | ) |  |  | 85 |
Net income (loss) |  |  | (2 | ) |  |  | 85 |
As of and for the year ended December 31, |  |  |  |  |  |  |  |
(in thousands) |  | 201 4 |  |  | 201 3 |
Current assets |  | $ | 260 |  |  | $ | 180 |
Non-current assets |  |  | 3,004 |  |  |  | 3,007 |
Current liabilities |  |  | 328 |  |  |  | 249 |
Stockholders’ equity |  |  | 2,936 |  |  |  | 2,938 |
Equity Method Investments [Member] |
Note 4 - Investments (Tables) [Line Items] |
Equity Method Investments [Table Text Block] |
|  | Carrying Value |
At December 31, (in thousands) |  | 201 4 |  |  | 201 3 |
NKD Enterprises, LLC |  | $ | 913 |  |  | $ | 914 |

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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=6382943&loc=d3e33918-111571 + Details
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