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Accounts Receivable and Sales Concentrations (Details Textual) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Accounts Receivable and Sales Concentrations (Textual) [Abstract] |  |  |
Net sales | $ 370,084 | $ 424,691 | $ 365,369
Accounts receivable, net | 51,628 | 66,707 |
SKF [Member] |  |  |
Accounts Receivable and Sales Concentrations (Textual) [Abstract] |  |  |
Net sales | 124,349 | 159,668 | 139,242
Percentage of consolidated revenue | 34.00% | 38.00% | 38.00%
Customers accounted percentage | 10.00% | 10.00% |
Accounts receivable concentrations in excess | 10.00% |  |
Accounts receivable, net | 15,433 | 22,572 |
SNR [Member] |  |  |
Accounts Receivable and Sales Concentrations (Textual) [Abstract] |  |  |
Accounts receivable concentrations in excess |  | 10.00% |
Accounts receivable, net |  | $ 6,796 |
Schaeffler Group [Member] |  |  |
Accounts Receivable and Sales Concentrations (Textual) [Abstract] |  |  |
Accounts receivable concentrations in excess |  |  | 10.00%

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- Definition Accounts receivable major customer threshold percentage. + References No definition available. + Details
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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3-4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a(1) -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 + Details
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- Definition Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues. + References No definition available. + Details
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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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- Definition The percentage of net product revenue to total net revenue from the sale of goods as of year end. + References No definition available. + Details
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