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Note 14 - Valuation and Qualifying Accounts	12 Months Ended
Note 14 - Valuation and Qualifying Accounts	Dec. 31, 2011
Summary of Valuation Allowance [Table Text Block]	14. Valuation and Qualifying Accounts The Company had insignificant activity and balance in its accounts receivable allowances in 2011, 2010 and 2009.

Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance.

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