Note 17 Income Taxes (Narratives) (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions	$ 499,000	$ 281,000	$ 285,000
Income Tax Disclosure [Abstract]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	81,800,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	10,600,000
Expiration of Operating Loss Carryforwards	from fiscal 2015 to 2023
Unrecognized Tax Benefits	6,978,000	6,736,000	6,318,000	8,785,000
Unrecognized Tax Benefits, Period Increase (Decrease)	242,000
Increases in Balances Related to Tax Positions Taken during the Current Period	684,000	964,000	803,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	1,200,000
Unrecognized Tax Benefits, Increase in Income Tax Penalties and Interest Accrued [Member]
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions	$ 329,000