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Note 9 - Commitments and Contingencies (Details) (USD $)
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12 Months Ended | |||
|---|---|---|---|---|
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Mar. 31, 2011
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| Note 9 - Commitments and Contingencies (Details) [Line Items] | ||||
| Lease Purchase Option | $ 1,800,000 | |||
| Operating Leases, Rent Expense | 1,200,000 | 1,600,000 | 2,100,000 | |
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Indemnification Agreement [Member]
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| Note 9 - Commitments and Contingencies (Details) [Line Items] | ||||
| Other Liabilities | $ 0 | $ 0 | $ 0 | |
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Minimum [Member]
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| Note 9 - Commitments and Contingencies (Details) [Line Items] | ||||
| Warranty Term | 1 year | |||
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Maximum [Member]
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| Note 9 - Commitments and Contingencies (Details) [Line Items] | ||||
| Warranty Term | 2 years | |||