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Supplementary Financial Information (Details 5) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Stock options
Shares excluded in the computation of income (loss) from continuing operations per share
Shares excluded in the computation of income (loss) from continuing operations per share	854	1,049	1,840
Warrants
Shares excluded in the computation of income (loss) from continuing operations per share
Shares excluded in the computation of income (loss) from continuing operations per share		4	15

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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