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Intangible Assets (Details) (USD $) | 9 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Mar. 31, 2012
Rotating Electrical [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 11 years |
Gross Carrying Value | $ 7,274,000 | $ 7,274,000
Accumulated Amortization | 3,098,000 | 2,518,000
Rotating Electrical [Member] | Trademarks [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 9 years |
Gross Carrying Value | 553,000 | 553,000
Accumulated Amortization | 318,000 | 262,000
Rotating Electrical [Member] | Customer Relationships [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 12 years |
Gross Carrying Value | 6,464,000 | 6,464,000
Accumulated Amortization | 2,582,000 | 2,096,000
Rotating Electrical [Member] | Non-compete Agreements [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 4 years |
Gross Carrying Value | 257,000 | 257,000
Accumulated Amortization | 198,000 | 160,000
Undercar Product Line [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 16 years |
Gross Carrying Value | 18,983,000 | 18,983,000
Accumulated Amortization | 2,303,000 | 1,255,000
Undercar Product Line [Member] | Trademarks [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 20 years |
Gross Carrying Value | 11,159,000 | 11,159,000
Accumulated Amortization | 918,000 | 500,000
Undercar Product Line [Member] | Customer Relationships [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 10 years |
Gross Carrying Value | 7,680,000 | 7,680,000
Accumulated Amortization | 1,267,000 | 691,000
Undercar Product Line [Member] | Non-compete Agreements [Member] |  |
Intangible assets subject to amortization [Abstract] |  |
Weighted Average Amortization Period | 2 years |
Gross Carrying Value | 144,000 | 144,000
Accumulated Amortization | $ 118,000 | $ 64,000

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16265-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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