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Product Warranties (Details Textual) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | |
|---|---|---|
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Mar. 31, 2012
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Mar. 31, 2011
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| Product Warranties (Textual) [Abstract] | ||
| Limited warranty period | 30 years | |
| Product warranty accrual related to settlement agreement | $ 0.8 | $ 0.9 |
| X | ||||||||||
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- Definition
Limited warranty period. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Product warranty accrual related to settlement agreement. No definition available.
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