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Note 6 - Valuation and Allowance Accounts (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Allowance for Trade Receivables [Member] |  |  |
Balance | $ 639 | $ 821 | $ 540
Net Charged to Costs and Expenses | 992 | 919 | 1,163
Net Write-Offs | (1,125) | (1,101) | (882)
Balance End of Year | 506 | 639 | 821
Allowance for Warranty Receivables From Manufacturers [Member] |  |  |
Balance | 140 | 419 | 444
Net Charged to Costs and Expenses | 1,677 | 411 | 626
Net Write-Offs | (1,712) | (690) | (651)
Balance End of Year | 105 | 140 | 419
Parts Inventory [Member] |  |  |
Balance | 5,067 | 4,416 | 3,593
Net Charged to Costs and Expenses | 4,215 | 2,547 | 2,560
Net Write-Offs | (1,991) | (1,896) | (1,737)
Balance End of Year | 7,291 | 5,067 | 4,416
Commercial Vehicle Inventory [Member] |  |  |
Balance | 10,644 | 7,395 | 6,839
Net Charged to Costs and Expenses | 8,417 | 7,877 | 5,517
Net Write-Offs | (12,520) | (4,628) | (4,961)
Balance End of Year | $ 6,541 | $ 10,644 | $ 7,395

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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- Definition Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 + Details
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