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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
Allowance for Doubtful Accounts [Member] |  |
Schedule of Valuation and Qualifying Accounts [Roll Forward] |  |
Balance at beginning of year | $ 20 | $ 22
Additions Charged to Costs and Expenses | 178 | 8
Additions Charged to other Accounts | 0 | 0
Deductions | (56) | (10)
Balance at end of year | 142 | 20
Allowance for Obsolete Inventories [Member] |  |
Schedule of Valuation and Qualifying Accounts [Roll Forward] |  |
Balance at beginning of year | 1,619 | 2,311
Additions Charged to Costs and Expenses | 1,229 | 1,766
Additions Charged to other Accounts | 0 | 0
Deductions | (839) | (2,458)
Balance at end of year | 2,009 | 1,619
Valuation Allowance for Deferred Tax Assets [Member] |  |
Schedule of Valuation and Qualifying Accounts [Roll Forward] |  |
Balance at beginning of year | 8,519 | 9,503
Additions Charged to Costs and Expenses | 612 | 795
Additions Charged to other Accounts | 0 | 0
Deductions | (3,867) | (1,779)
Balance at end of year | 5,264 | 8,519
Reserve for Sales Returns [Member] |  |
Schedule of Valuation and Qualifying Accounts [Roll Forward] |  |
Balance at beginning of year | 156 | 528
Additions Charged to Costs and Expenses | 1,371 | 1,168
Additions Charged to other Accounts | 0 | 0
Deductions | (1,289) | (1,540)
Balance at end of year | $ 238 | $ 156

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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 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 accounts other than costs and expenses in a given period. + 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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