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Schedule II. Valuation & Qualifying Accounts (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Allowance for Doubtful Accounts Receivable [Roll Forward] | |||
| Balance at beginning of year | $ 20us-gaap_AllowanceForDoubtfulAccountsReceivable | $ 62us-gaap_AllowanceForDoubtfulAccountsReceivable | $ 0us-gaap_AllowanceForDoubtfulAccountsReceivable |
| Write-offs and other adjustments | (8)us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs | (25)us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs | 0us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs |
| Recoveries | 0us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries | 0us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries | 0us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries |
| Change in provision | 43us-gaap_ProvisionForDoubtfulAccounts | (17)us-gaap_ProvisionForDoubtfulAccounts | 62us-gaap_ProvisionForDoubtfulAccounts |
| Balance at end of year | $ 55us-gaap_AllowanceForDoubtfulAccountsReceivable | $ 20us-gaap_AllowanceForDoubtfulAccountsReceivable | $ 62us-gaap_AllowanceForDoubtfulAccountsReceivable |
| X | ||||||||||
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- Definition
For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of recoveries of receivables doubtful of collection that were previously charged off. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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