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Property, Plant and Equipment (Details) (USD $)
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3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2012
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Dec. 31, 2011
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Mar. 31, 2012
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| Property, Plant and Equipment | |||||
| Total property, plant and equipment, gross | $ 35,463,000 | $ 35,463,000 | $ 35,082,000 | ||
| Less, accumulated depreciation and amortization | (31,743,000) | (31,743,000) | (30,249,000) | ||
| Total property, plant and equipment, net | 3,720,000 | 3,720,000 | 4,833,000 | ||
| Depreciation and amortization expense | 600,000 | 600,000 | 1,800,000 | 1,900,000 | |
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Machinery, rental equipment, equipment, automobiles and furniture
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| Property, Plant and Equipment | |||||
| Total property, plant and equipment, gross | 20,828,000 | 20,828,000 | 20,506,000 | ||
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Leasehold improvements
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| Property, Plant and Equipment | |||||
| Total property, plant and equipment, gross | 9,698,000 | 9,698,000 | 9,696,000 | ||
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Molds and tooling
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| Property, Plant and Equipment | |||||
| Total property, plant and equipment, gross | $ 4,937,000 | $ 4,937,000 | $ 4,880,000 | ||