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ACCOUNTS RECEIVABLE (Details) (USD $) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2013 State | Dec. 31, 2012 | Dec. 31, 2011
ACCOUNTS RECEIVABLE [Abstract] |  |  |
Percentage of amounts financed under in-house credit programs, as a percent of net sales (in hundredths) | 3.60% | 4.60% | 5.20%
Duration of no interest credit programs | 12 months |  |
Term of other programs, minimum | 30 days |  |
Term of other programs, maximum | 3 years |  |
Interest rate of other programs, minimum (in hundredths) | 0.00% |  |
Interest rate of other programs, maximum (in hundredths) | 21.00% |  |
Accounts receivable due per scheduled payment [Abstract] |  |  |
Accounts receivables collectible in one year | $ 8,395,000 |  |
Accounts receivables collectible in two years | 766,000 |  |
Accounts receivables collectible in three years | 128,000 |  |
Accounts receivables collectible in four years | 65,000 |  |
Allowance for doubtful accounts | $ 350,000 | $ 395,000 |
Account write-off period (in months) | 9 months |  |
Number of states in which accounts receivable originated | 16 |  |

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- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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