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Note 11 - Shareholder Rights Plan (Details) (USD $) |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 Series B Junior Participating Preferred Stock [Member] Shareholder Rights Plan 2008 [Member] | Dec. 31, 2013 Shareholder Rights Plan 2008 [Member] | Dec. 31, 2013 Shareholder Rights Plan 2008 [Member] Minimum [Member] | Apr. 04, 2008 Shareholder Rights Plan 2008 [Member] Minimum [Member]
Note 11 - Shareholder Rights Plan (Details) [Line Items] |  |  |  |  |  |
Stockholders Rights Plan, Exercisability Threshold, Percentage |  |  |  |  |  | 15.00%
Stockholders Rights Plan, Exercise Percentage of Voting Stock Ownership Offer |  |  |  |  |  | 15.00%
Exercise Price per Right (in Dollars per share) |  |  |  | $ 75.00 |  |
Redemption Price per Right (in Dollars per share) |  |  |  | $ 0.01 |  |
Percentage of Beneficial Ownership |  |  |  |  | 50.00% |
Preferred Stock, Par or Stated Value Per Share (in Dollars per share) | $ 0.01 | $ 0.01 | $ 0.01 |  |  |
Preferred Stock, Capital Shares Reserved for Future Issuance (in Shares) |  |  | 175,000 |  |  |

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- Definition Aggregate number of nonredeemable preferred shares reserved for future issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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