Consolidated Statements of Cash Flows (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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Operating activities: | |||
Net loss | $ (20,814)us-gaap_ProfitLoss | $ (17,265)us-gaap_ProfitLoss | $ (28,326)us-gaap_ProfitLoss |
Adjustments to reconcile net loss to net cash provided by operating activities: | |||
Depreciation and amortization | 9,263us-gaap_Depreciation | 10,181us-gaap_Depreciation | 8,562us-gaap_Depreciation |
Loss on retirement of property and equipment | 50us-gaap_GainLossOnDispositionOfAssets | 569us-gaap_GainLossOnDispositionOfAssets | 262us-gaap_GainLossOnDispositionOfAssets |
Amortization of intangible assets | 18,561us-gaap_AmortizationOfIntangibleAssets | 18,561us-gaap_AmortizationOfIntangibleAssets | 17,747us-gaap_AmortizationOfIntangibleAssets |
Amortization of premiums relating to available-for-sale securities | 574us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments | 0us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments | 0us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments |
Gain on sale of available-for-sale securities | (1)us-gaap_GainLossOnSaleOfInvestments | 0us-gaap_GainLossOnSaleOfInvestments | 0us-gaap_GainLossOnSaleOfInvestments |
Stock-based compensation | 16,017us-gaap_ShareBasedCompensation | 19,921us-gaap_ShareBasedCompensation | 17,437us-gaap_ShareBasedCompensation |
Utilization of inventory credit | 0calx_UtilizationOfInventoryCredit | (1,651)calx_UtilizationOfInventoryCredit | 0calx_UtilizationOfInventoryCredit |
Gain on bargain purchase | 0us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount | 0us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount | (1,029)us-gaap_BusinessCombinationBargainPurchaseGainRecognizedAmount |
Changes in operating assets and liabilities: | |||
Restricted cash | 0us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities | (295)us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities | 754us-gaap_IncreaseDecreaseInRestrictedCashForOperatingActivities |
Accounts receivable, net | 12,776us-gaap_IncreaseDecreaseInAccountsReceivable | 15,999us-gaap_IncreaseDecreaseInAccountsReceivable | (13,011)us-gaap_IncreaseDecreaseInAccountsReceivable |
Inventory | 4,319us-gaap_IncreaseDecreaseInInventories | (6,138)us-gaap_IncreaseDecreaseInInventories | 11,308us-gaap_IncreaseDecreaseInInventories |
Deferred cost of revenue | 15,996us-gaap_IncreaseDecreaseInDeferredCharges | 1us-gaap_IncreaseDecreaseInDeferredCharges | (13,379)us-gaap_IncreaseDecreaseInDeferredCharges |
Prepaid expenses and other assets | (5,908)us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 535us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets | 47us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets |
Accounts payable | 467us-gaap_IncreaseDecreaseInAccountsPayable | 6,359us-gaap_IncreaseDecreaseInAccountsPayable | 2,554us-gaap_IncreaseDecreaseInAccountsPayable |
Accrued liabilities | 7,440us-gaap_IncreaseDecreaseInAccruedLiabilities | (4,217)us-gaap_IncreaseDecreaseInAccruedLiabilities | (869)us-gaap_IncreaseDecreaseInAccruedLiabilities |
Deferred revenue | (21,178)us-gaap_IncreaseDecreaseInDeferredRevenue | (1,804)us-gaap_IncreaseDecreaseInDeferredRevenue | 26,403us-gaap_IncreaseDecreaseInDeferredRevenue |
Other long-term liabilities | 513us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities | 62us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities | (782)us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities |
Net cash provided by operating activities | 38,075us-gaap_NetCashProvidedByUsedInOperatingActivities | 40,818us-gaap_NetCashProvidedByUsedInOperatingActivities | 27,678us-gaap_NetCashProvidedByUsedInOperatingActivities |
Investing activities: | |||
Purchases of property and equipment | (11,961)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (6,987)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (10,179)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
Purchases of marketable securities | (67,698)us-gaap_PaymentsToAcquireMarketableSecurities | 0us-gaap_PaymentsToAcquireMarketableSecurities | 0us-gaap_PaymentsToAcquireMarketableSecurities |
Sales of marketable securities | 615us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities | 0us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities | 0us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities |
Maturities of marketable securities | 3,600us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities | 0us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities | 0us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities |
Acquisitions, net of cash acquired | 0us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | 0us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | (12,000)us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired |
Net cash used in investing activities | (75,444)us-gaap_NetCashProvidedByUsedInInvestingActivities | (6,987)us-gaap_NetCashProvidedByUsedInInvestingActivities | (22,179)us-gaap_NetCashProvidedByUsedInInvestingActivities |
Financing activities: | |||
Proceeds from exercise of stock options | 1,668us-gaap_ProceedsFromStockOptionsExercised | 747us-gaap_ProceedsFromStockOptionsExercised | 194us-gaap_ProceedsFromStockOptionsExercised |
Proceeds from employee stock purchase plan | 4,627us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions | 4,828us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions | 4,063us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions |
Taxes paid for awards vested under equity incentive plans | (2,720)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation | (3,441)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation | (1,744)us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation |
Payments for debt issuance costs | 0us-gaap_PaymentsOfDebtIssuanceCosts | (316)us-gaap_PaymentsOfDebtIssuanceCosts | 0us-gaap_PaymentsOfDebtIssuanceCosts |
Net cash provided by financing activities | 3,575us-gaap_NetCashProvidedByUsedInFinancingActivities | 1,818us-gaap_NetCashProvidedByUsedInFinancingActivities | 2,513us-gaap_NetCashProvidedByUsedInFinancingActivities |
Effect of exchange rate changes on cash and cash equivalents | (124)us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 103us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents | 45us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents |
Net increase (decrease) in cash and cash equivalents | (33,918)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 35,752us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 8,057us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |
Cash and cash equivalents at beginning of period | 82,747us-gaap_CashAndCashEquivalentsAtCarryingValue | 46,995us-gaap_CashAndCashEquivalentsAtCarryingValue | 38,938us-gaap_CashAndCashEquivalentsAtCarryingValue |
Cash and cash equivalents at end of period | 48,829us-gaap_CashAndCashEquivalentsAtCarryingValue | 82,747us-gaap_CashAndCashEquivalentsAtCarryingValue | 46,995us-gaap_CashAndCashEquivalentsAtCarryingValue |
Supplemental disclosures of cash flow information | |||
Interest paid | 159us-gaap_InterestPaid | 57us-gaap_InterestPaid | 68us-gaap_InterestPaid |
Income taxes paid | 72us-gaap_IncomeTaxesPaidNet | 96us-gaap_IncomeTaxesPaidNet | 125us-gaap_IncomeTaxesPaidNet |
Non-cash financing and investing activities | |||
Property and equipment acquired using credits from Ericsson Inc. | $ 0us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 | $ 125us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 | $ 0us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 |
X | ||||||||||
- Definition
Other income from utilization of inventory credit No definition available.
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- Definition
The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The increase (decrease) during the reporting period in the value of expenditures made during the current reporting period for benefits that will be received over a period of years. Deferred charges differ from prepaid expenses in that they usually extend over a long period of time and may or may not be regularly recurring costs of operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The increase (decrease) during the reporting period, excluding the portion taken into income, in the liability reflecting revenue yet to be earned for which cash or other forms of consideration was received or recorded as a receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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X | ||||||||||
- Definition
The increase (decrease) during the reporting period in other noncurrent operating liabilities not separately disclosed in the statement of cash flows. No definition available.
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X | ||||||||||
- Definition
The increase (decrease) during the reporting period in the value of prepaid expenses and other assets not separately disclosed in the statement of cash flows, for example, deferred expenses, intangible assets, or income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as operating activities. This may include cash restricted for regulatory purposes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The amount of cash paid for interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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X | ||||||||||
- Definition
Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Details
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X | ||||||||||
- Definition
The amount of fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Cash outflow for purchase of trading, available-for-sale securities and held-to-maturity securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow associated with maturities (principal being due), prepayments and calls (requests of early payments) on securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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