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Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
Income Taxes (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Income Taxes
Benefit (provision) for income taxes	$ 120,000	$ 263,000	$ (475,000)	$ (715,000)
Effective tax rate (as a percent)	(29.00%)	(74.10%)	36.00%	44.80%
Recognition of previously unrecognized tax benefits		$ 271,000		$ 271,000

- 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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