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Accrued Liabilities and Deferred Revenue (Details 1) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
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Jun. 30, 2012
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Jun. 30, 2011
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Jun. 30, 2012
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Jun. 30, 2011
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| Changes in initial product warranty accrual and expenses under initial and extended warranties | ||||
| Initial warranty accrual, beginning balance | $ 1,926 | $ 2,728 | $ 2,218 | $ 2,725 |
| Provision for estimated warranty cost | 661 | 448 | 783 | 956 |
| Warranty expenditures | (607) | (490) | (1,021) | (995) |
| Initial warranty accrual, ending balance | 1,980 | 2,686 | 1,980 | 2,686 |
| Total warranty accrual, long term | 431 | 431 | ||
| Total warranty accrual, current portion | $ 1,980 | $ 2,255 | $ 1,980 | $ 2,255 |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Provision for estimated warranty cost. No definition available.
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for estimated claims under standard and extended warranty protection rights granted to customers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Represents the aggregate decrease in the liability for payments made (in cash or in kind) to satisfy claims under the terms of the standard product warranty. Does not include any Increase or Decrease in the liability for payments related to extended product warranties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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