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Note 8 - Long-term Incentive Plan (Details) - Period and Predetermined Stock Price Needed for Vesting (USD $) | 12 Months Ended |
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Dec. 31, 2013 | Mar. 31, 2012
Block One [Member] |  |
Note 8 - Long-term Incentive Plan (Details) - Period and Predetermined Stock Price Needed for Vesting [Line Items] |  |
Begins Vesting | 12 mo. after Grant Dates |
Ends Vesting | 48 mo. after Grant Dates |
Predetermined Vesting Price | $ 3.43 | $ 3.43
Block Two [Member] |  |
Note 8 - Long-term Incentive Plan (Details) - Period and Predetermined Stock Price Needed for Vesting [Line Items] |  |
Begins Vesting | 24 mo. after Grant Dates |
Ends Vesting | 60 mo. after Grant Dates |
Predetermined Vesting Price | $ 4.69 | $ 4.69
Block Three [Member] |  |
Note 8 - Long-term Incentive Plan (Details) - Period and Predetermined Stock Price Needed for Vesting [Line Items] |  |
Begins Vesting | 36 mo. after Grant Dates |
Ends Vesting | 72 mo. after Grant Dates |
Predetermined Vesting Price | $ 6.43 |
Block Four [Member] |  |
Note 8 - Long-term Incentive Plan (Details) - Period and Predetermined Stock Price Needed for Vesting [Line Items] |  |
Begins Vesting | 48 mo. after Grant Dates |
Ends Vesting | 84 mo. after Grant Dates |
Predetermined Vesting Price | $ 8.81 |
Block Five [Member] |  |
Note 8 - Long-term Incentive Plan (Details) - Period and Predetermined Stock Price Needed for Vesting [Line Items] |  |
Begins Vesting | 60 mo. after Grant Dates |
Ends Vesting | 96 mo. after Grant Dates |
Predetermined Vesting Price | $ 12.07 |

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