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Note 15 Income Taxes (Narratives) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Income Tax Expense Benefit [Abstract]
Total Income Tax Provision	$ 1,076	$ 4,698	$ 4,310	$ 10,444
Effective Tax Provision Rate	31.30%	30.00%	34.00%	33.30%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations.

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