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Supplementary Balance Sheet Information - Additional Information (Detail) (USD $)
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3 Months Ended | 12 Months Ended | |
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Sep. 30, 2014
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Dec. 31, 2014
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Dec. 31, 2013
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| Accounts Receivable [Abstract] | |||
| Allowances for doubtful accounts | $ 1,700,000us-gaap_AllowanceForDoubtfulAccountsReceivable | $ 573,000us-gaap_AllowanceForDoubtfulAccountsReceivable | |
| Provision for sales returns | 110,000us-gaap_SalesReturnsAndAllowancesGoods | 110,000us-gaap_SalesReturnsAndAllowancesGoods | |
| Provision for excess inventory and obsolete inventory | 2,400,000us-gaap_InventoryValuationReserves | 2,800,000us-gaap_InventoryValuationReserves | |
| Deferred revenue recognized | $ 708,000us-gaap_DeferredRevenueRevenueRecognized | ||
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- Details
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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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- Definition
Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of valuation reserve for inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total deduction from sales during the period arising from goods returned by customers (other than under warranty provisions) and price reductions (allowance, price protection agreements) given by the entity. Returns and allowances are a deduction from gross revenue in arriving at net revenue. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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