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Note 7 - Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2012
Schedule of Condensed Cash Flow Statement [Table Text Block] |
|  | Year Ended December 31, |
|  | 2011 |  |  | 2012 |
|  | (In Thousands) |
Cash paid during the year for: |  |  |  |  |  |
Income taxes, net of refunds |  | $ | 53 |  |  | $ | 34 |
Interest |  |  | 16 |  |  |  | – |

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- Definition Tabular disclosure of a condensed cash flow statement. Disclosure may include, but is not limited to, cash flow statements of consolidated entities and consolidation eliminations. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration