Note 17 Income Taxes (Unrecognized Tax Benefits) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning Balance	$ 6,736	$ 6,318	$ 8,785
Lapse of Statute of Limitations	(941)	(827)	(3,555)
Increases in Balances Related to Tax Positions Taken during Prior Periods	499	281	285
Increases in Balances Related to Tax Positions Taken during the Current Period	684	964	803
Ending Balance	$ 6,978	$ 6,736	$ 6,318

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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