Procera Networks (PKT) Inactive 10-K13 Mar 152014 FY Annual reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
Document and Entity Information (USD $)	Dec. 31, 2014	Mar. 10, 2015	Jun. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name	PROCERA NETWORKS, INC.
Entity Central Index Key	1165231
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$155,061,041
Entity Common Stock, Shares Outstanding		20,767,968
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	FALSE
Document Period End Date	31-Dec-14

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$17,939	$90,774
Short-term investments	84,542	15,789
Accounts receivable, net of allowance of $47 and $129 at December 31, 2014 and 2013, respectively	21,447	25,008
Inventories, net	14,837	18,836
Prepaid expenses and other	4,913	2,128
Total current assets	143,678	152,535
Property and equipment, net	8,322	7,121
Intangible assets, net	2,957	6,270
Goodwill	960	12,326
Deferred tax asset	0	1,101
Other non-current assets	154	83
Total assets	156,071	179,436
Current liabilities:
Accounts payable	5,207	7,305
Deferred revenue	11,821	11,633
Accrued liabilities	7,235	6,721
Total current liabilities	24,263	25,659
Non-current liabilities:
Deferred revenue	3,113	3,273
Deferred tax liability	0	1,690
Deferred rent	583	143
Total liabilities	27,959	30,765
Commitments and contingencies (Note 10)
Stockholders' equity:
Preferred stock, $0.001 par value; 15,000 shares authorized; none issued and outstanding	0	0
Common stock, $0.001 par value; 32,500 shares authorized; 20,756 and 20,652 shares issued and outstanding at December 31, 2014 and 2013, respectively	21	21
Additional paid-in capital	225,313	219,763
Accumulated other comprehensive loss	-3,190	-1,897
Accumulated deficit	-94,032	-69,216
Total stockholders' equity	128,112	148,671
Total liabilities and stockholders' equity	$156,071	$179,436

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current assets:
Accounts receivable, allowance	$47	$129
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$0.00	$0.00
Preferred stock, shares authorized (in shares)	15,000	15,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized (in shares)	32,500	32,500
Common stock, shares issued (in shares)	20,756	20,652
Common stock, shares outstanding (in shares)	20,756	20,652

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Sales:
Product sales	$54,000	$56,520	$47,723
Support sales	21,413	18,153	11,904
Total sales	75,413	74,673	59,627
Cost of sales:
Product cost of sales	26,676	30,461	17,720
Support cost of sales	4,531	3,399	1,749
Total cost of sales	31,207	33,860	19,469
Gross profit	44,206	40,813	40,158
Operating expenses:
Research and development	16,722	17,548	7,472
Sales and marketing	27,831	29,251	18,158
General and administrative	11,738	12,036	9,223
Impairment of goodwill and purchased intangible assets	12,380	0	0
Total operating expenses	68,671	58,835	34,853
Income (loss) from operations	-24,465	-18,022	5,305
Interest and other income (expense):
Interest and other income	303	601	362
Interest and other expense	-902	-40	-213
Total other income (expense), net	-599	561	149
Income (loss) before income taxes	-25,064	-17,461	5,454
Income tax provision (benefit)	-248	-1,177	123
Net income (loss)	($24,816)	($16,284)	$5,331
Net income (loss) per share - basic (in dollars per share)	($1.21)	($0.81)	$0.30
Net income (loss) per share - diluted (in dollars per share)	($1.21)	($0.81)	$0.29
Shares used in computing net income (loss) per share:
Basic (in shares)	20,450	20,091	17,842
Diluted (in shares)	20,450	20,091	18,337

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) [Abstract]
Net loss	($24,816)	($16,284)	$5,331
Unrealized gain (loss) on short-term investments, net of tax of $0	-26	-7	21
Foreign currency translation adjustments	-1,267	-1,814	293
Other comprehensive income (loss)	-1,293	-1,821	314
Comprehensive income (loss)	($26,109)	($18,105)	$5,645

CONSOLIDATED_STATEMENTS_OF_COM1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) [Abstract]
Unrealized gain (loss) on short-term investments, tax	$0	$0	$0

CONSOLIDATED_STATEMENTS_OF_STO

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Total
In Thousands, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Total
Balances at Dec. 31, 2011	$15	$105,205	($390)	($58,263)	$46,567
Balances (in shares) at Dec. 31, 2011	14,628
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss			0	5,331	5,331
Other comprehensive income (loss)			314	0	314
Exercise of stock options	0	3,756	0	0	3,756
Exercise of stock options (in shares)	372
Exercise of warrants	0	27	0	0	27
Exercise of warrants (in shares)	44
Stock-based compensation	0	2,784	0	0	2,784
Issuance of common stock in registered placement, net of issuance costs	5	88,021	0	0	88,026
Issuance of common stock in registered placement, net of issuance costs (in shares)	4,500
Issuance of restricted stock	0	0	0	0	0
Issuance of restricted stock (in shares)	152
Balances at Dec. 31, 2012	20	199,793	-76	-52,932	146,805
Balances (in shares) at Dec. 31, 2012	19,696
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss			0	-16,284	-16,284
Other comprehensive income (loss)			-1,821	0	-1,821
Exercise of stock options	0	653	0	0	653
Exercise of stock options (in shares)	87
Stock-based compensation	0	5,057	0	0	5,057
Issuance of common stock as part of the Vineyard acquisition, net of issuance costs	1	14,260	0	0	14,261
Issuance of common stock as part of the Vineyard acquisition, net of issuance costs (in shares)	825
Issuance of restricted stock	0	0	0	0	0
Issuance of restricted stock (in shares)	44
Balances at Dec. 31, 2013	21	219,763	-1,897	-69,216	148,671
Balances (in shares) at Dec. 31, 2013	20,652				20,652
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss			0	-24,816	-24,816
Other comprehensive income (loss)			-1,293	0	-1,293
Exercise of stock options	0	352	0	0	352
Exercise of stock options (in shares)	62
Stock-based compensation	0	5,198	0	0	5,198
Issuance of restricted stock	0	0	0	0	0
Issuance of restricted stock (in shares)	42
Balances at Dec. 31, 2014	$21	$225,313	($3,190)	($94,032)	$128,112
Balances (in shares) at Dec. 31, 2014	20,756				20,756

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net income (loss)	($24,816)	($16,284)	$5,331
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Compensation related to stock-based awards	5,198	5,057	2,784
Amortization of premium on investments	762	912	847
Depreciation	2,427	1,854	910
Amortization of intangibles	1,384	1,573	0
Impairment of goodwill and purchased intangible assets	12,380	0	0
Amortization of deferred compensation	65	5,831	0
Provision for (recovery of) bad debts	-25	44	6
Provision for excess and obsolete inventory	1,432	1,020	723
Loss on retirement of property and equipment	67	53	0
Changes in deferred taxes	-513	-1,485	0
Changes in assets and liabilities:
Accounts receivable	2,571	-7,875	-5,037
Inventories	1,761	-8,615	-4,245
Prepaid expenses and other current assets	-3,395	1,971	-1,129
Deferred compensation advanced to escrow	0	-2,701	0
Accounts payable	-1,860	1,745	2,604
Accrued liabilities	446	1,519	1,039
Deferred revenue	723	4,578	3,324
Net cash provided by (used in) operating activities	-1,393	-10,803	7,157
Cash flows from investing activities:
Purchase of Vineyard, net of cash received	0	-9,014	0
Purchase of property and equipment	-3,053	-4,078	-3,976
Purchase of short-term investments	-118,669	-36,156	-117,807
Sales of short-term investments	26,891	11,212	7,001
Maturities of short-term investments	22,460	108,930	22,695
Net cash provided by (used in) investing activities	-72,371	70,894	-92,087
Cash flows from financing activities:
Proceeds from issuance of common stock	0	0	88,026
Proceeds from exercise of stock options	352	653	3,756
Proceeds from exercise of warrants	0	0	27
Repayments on line of credit	0	-497	0
Net cash provided by financing activities	352	156	91,809
Effect of exchange rates on cash and cash equivalents	577	-406	154
Net increase (decrease) in cash and cash equivalents	-72,835	59,841	7,033
Cash and cash equivalents, beginning of period	90,774	30,933	23,900
Cash and cash equivalents, end of period	17,939	90,774	30,933
SUPLEMENTAL CASH FLOW INFORMATION:
Cash paid for income taxes	414	93	61
Cash paid for interest	0	0	10
Accrued purchases of property and equipment	915	0	0
Issuance of common stock in connection with Vineyard acquisition	$0	$14,261	$0

Description_of_Business

Description of Business	12 Months Ended
	Dec. 31, 2014
Description of Business [Abstract]
Description of Business	1	Description of Business

	Procera Networks, Inc. (“Procera” or the “Company”), is a leading provider of Subscriber Experience Assurance solutions based on Deep Packet Inspection (“DPI”) technology, that enable mobile and broadband network operators and enterprises managing private networks, including higher education institutions, businesses and government entities (collectively referred to as network operators) to gain enhanced visibility into, and control of, their networks and to create and deploy new services for their end user subscribers. The Company sells its products through its direct sales force, resellers, distributors, systems integrators and other equipment manufacturers in the Americas, Asia Pacific and Europe.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2	Summary of Significant Accounting Policies

	Basis of Presentation

	The consolidated financial statements include the accounts of Procera and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated. We have prepared the accompanying consolidated financial statements in accordance with accounting principles generally accepted in the United States of America and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”).

	During 2013, the Company identified immaterial errors in the consolidated financial statements for the year ended December 31, 2012, related to the recognition of revenue from a sale to a value added reseller, the accounting for inventory, and general and administrative fee accruals. Based on a quantitative and qualitative analysis of the errors as required by authoritative guidance, management concluded that the errors had no material impact on any of the Company’s previously issued financial statements, are immaterial to the Company’s results for the year ended December 31, 2013, and had no material effect on the trend of financial results.

	The consolidated financial statements for the year ended December 31, 2013 reflect the following immaterial adjustments related to prior periods: the reversal of $0.6 million in revenue and related gross margin of $0.4 million, inventory charges of $0.4 million, and additional general and administrative costs of $43,000.

	Use of Estimates

	The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosures of contingent assets and liabilities. Actual results could differ from those estimates. The accounting estimates that require management’s most significant and subjective judgments include the recognition of revenue, assessment of the recoverability of long-lived assets and goodwill, valuation of inventory, valuation and recognition of stock-based compensation, warranty estimates and accounting for income taxes.

	Fair Value of Financial Instruments

	The carrying amounts of certain of the Company’s financial instruments, including cash and cash equivalents, short-term investments, accounts receivable, accounts payable and accrued liabilities approximate fair value due to their short maturities.

	Concentration of Risk

	The financial instruments utilized by the Company that potentially subject the Company to a concentration of credit risk consist of cash and cash equivalents, short-term investments and accounts receivable. Cash and cash equivalents are deposited in demand and money market accounts in major financial institutions in the United States, Sweden, Canada and Australia. Accounts at financial institutions in the United States are guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) up to certain limits. At times, the Company’s deposits or investments may exceed federally insured limits. At December 31, 2014 and 2013, the Company had approximately $17.7 million and $90.5 million, respectively, at financial institutions in excess of FDIC insured limits. The Company has not experienced any losses in such accounts.

	The Company’s investment policies limit investments to those that are low risk and restrict placement of these investments to issuers evaluated as creditworthy. As of December 31, 2014, the Company’s investments were composed of money market funds, U.S. agency securities, certificates of deposit, commercial paper and corporate bonds. As of December 31, 2013, the Company’s investments were composed of commercial paper and money market funds.

	The Company’s sales have at times been concentrated with certain large customers. The Company also sells to a geographically diverse base of customers. For the year ended December 31, 2014, no single customer accounted for more than 10% of net revenues. For the year ended December 31, 2013, revenue from three customers, Shaw Communications, Inc., British Telecommunications plc and Itochu Techno-Solutions Corp. represented 13%, 12% and 10% of net revenues, respectively, with no other single customer accounting for more than 10% of net revenues. For the year ended December 31, 2012, revenue from one customer, Shaw Communications, Inc., represented 16% of net revenues. At December 31, 2014, accounts receivable from one customer represented 13% of total accounts receivable with no other single customer accounting for more than 10% of the accounts receivable balance, and 84% of accounts receivable were due from customers outside of the United States. At December 31, 2013, one customer represented 32% of total accounts receivable, and 86% of accounts receivable were due from customers outside of the United States (see Note 16). The Company maintains an allowance for uncollectible accounts receivable based upon expected collectability of all accounts receivable. The Company performs ongoing credit evaluations of certain customers’ financial condition and generally requires no collateral from its customers.

	The Company is dependent on a limited number of third-party suppliers for its hardware equipment. The Company is dependent on the ability of these suppliers to provide products on a timely basis and on favorable pricing terms. The loss of certain principal suppliers or a significant reduction in product availability from principal suppliers could have a material adverse effect on the Company. The Company believes that its relationships with its suppliers are satisfactory, and the Company has not historically experienced inadequate supply issues from its suppliers.

	Cash and Cash Equivalents

	The Company considers all highly liquid investments with original or remaining maturities of three months or less from the date of purchase to be cash equivalents.

	Investments

	The goals of the Company’s investment policy are preservation of capital and maintenance of liquidity. The Company invests in instruments that are of high credit quality, primarily rated AA+/Aa1, and have a maturity of up to 24 months. However, the weighted average maturity of the portfolio does not exceed 12 months. Investments that have a remaining maturity of greater than three months at the date of purchase and an effective maturity of less than one year are classified as short-term investments.

	Investments are carried at fair value based upon quoted market prices at the end of the reporting period. As of each of December 31, 2014 and 2013, all investments were classified as available-for-sale with unrealized gains and losses recorded as a separate component of comprehensive income. The specific identification method is used to determine the cost of securities disposed of, with realized gains and losses reflected in interest and other income (expense).

	The Company reviews its investments for impairment on a quarterly basis. For investments with an unrealized loss, the factors considered in the review include the credit quality of the issuer, the duration that the fair value has been less than the adjusted cost basis, severity of impairment, reason for the decline in value and potential recovery period, the financial condition and near-term prospects of the investees, and whether the Company would be required to sell an investment due to liquidity or contractual reasons before its anticipated recovery.

	Accounts Receivables and Allowance for Doubtful Accounts

	Trade accounts receivable are recorded at the invoiced amount. The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments. The Company considers factors such as historical experience, credit quality, age of the accounts receivable balances, geographic or country-specific risks and economic conditions that may affect a customer’s ability to pay. The allowance for doubtful accounts is reviewed regularly and adjusted if necessary based on management’s assessment of a customer’s ability to pay. Individual accounts receivable are written off when all collection efforts have been exhausted.

	Inventories

	Inventories consist primarily of finished goods and are stated at the lower of cost (on a specific identification or weighted average cost basis) or market. The Company records inventory write-downs for excess and obsolete inventories based on historical usage and forecasted demand, as well as determining what inventory, if any, is not saleable. Factors which could cause its forecasted demand to prove inaccurate include the Company’s reliance on indirect sales channels and the variability of its sales cycle; the potential of announcements of new products or enhancements to replace or shorten the life cycle of current products, or cause customers to defer their purchases; and the potential of new or alternative technologies achieving widespread market acceptance and thereby rendering the Company’s existing products obsolete. If future demand or market conditions are less favorable than projections, additional inventory write-downs may be required and would be reflected in cost of sales in the period the revision is made.

	Inventories also include demonstration units located at various customer locations and customer service inventories. The demonstration units and customer service inventories are stated at lower of cost (on a specific identification or weighted average cost basis) or market. The Company provides demonstration units to customers who evaluate the Company's products, and upon a successful trial, may purchase such products. The Company carries customer service inventories because it generally provides product warranty for 12 months and earn revenue by providing enhanced and extended support contracts during and beyond this warranty period. Customer service inventories are provided for customer use permanently or on a temporary basis while the defective unit is being repaired. The Company reduces the carrying value of demonstration units and customer service inventories for differences between cost and estimated net realizable value, taking into consideration expected demand, technological obsolescence and other information including the physical condition of the unit. If actual results vary significantly from expectations, additional write-downs may be required, resulting in additional charges to operations.

	Property and Equipment

	Property and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets. Leasehold improvements are amortized using the straight-line method over the estimated useful lives of the improvements or the term of the lease, whichever is shorter. Whenever assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts, and any resulting gain or loss is recognized in income for the period. The cost of maintenance and repairs is expensed as incurred; significant improvements are capitalized.

	The estimated service lives of property and equipment are principally as follows:

	Leasehold improvements	Lesser of useful life or lease term
	Machinery, office and computer equipment	2–5 years
	Computer software	3 years
	Transportation vehicles	3–5 years

	Goodwill

	Goodwill has been measured as the excess of the cost of acquisition over the amount assigned to tangible and identifiable intangible assets acquired less liabilities assumed. The Company reviews goodwill for impairment annually during the fourth quarter of the year or more frequently if an event or circumstance indicates that an impairment loss has occurred. The identification and measurement of goodwill impairment involves the estimation of fair value at the Company’s reporting unit level.

Goodwill impairment is determined using a two-step process. The first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of a reporting unit with its carrying amount, including goodwill. If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is considered not impaired and the second step of the impairment test is unnecessary. If the carrying amount of a reporting unit exceeds its fair value, the second step of the goodwill impairment test is performed to measure the amount of impairment loss, if any.

The second step of the goodwill impairment test compares the implied fair value of the reporting unit’s goodwill with the carrying amount of that goodwill. If the carrying amount of the reporting unit’s goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The implied fair value of goodwill is determined in the same manner as the amount of goodwill recognized in a business combination. That is, the fair value of the reporting unit’s assets and liabilities (including any unrecognized intangible assets) are determined as if the reporting unit had been acquired in a business combination and the fair value of the reporting unit was the purchase price paid to acquire the reporting unit.

Accounting for long-lived assets

The Company reviews its long-lived assets, including property and equipment and purchased intangible assets, for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Examples of such events could include a significant disposal of a portion of such assets, an adverse change in the market involving the business employing the related asset, a significant decrease in the benefits realized from an acquired business, difficulties or delays in integrating the business or a significant change in the operation or use of an asset or acquired business.

An impairment test involves a comparison of undiscounted cash flows from the use of the asset or asset group to the carrying value of the asset or asset group. Measurement of an impairment loss is based on the amount by which the carrying value of the asset or asset group exceeds its fair value.

Product Warranty

The Company warrants its products against material defects for a specific period of time, generally 12 months. The Company provides for the estimated future costs of warranty obligations in cost of sales when the related revenue is recognized. The accrued warranty costs represent the best estimate at the time of sale of the total costs that the Company expects to incur to repair or replace product parts, which fail while still under warranty. The amount of accrued estimated warranty costs are primarily based on current information on repair costs. The Company assesses the adequacy of the recorded warranty obligation quarterly and makes adjustments to the obligation based on actual experience and changes in estimated future rates of return.

Commitments and Contingencies

Certain conditions may exist on the date the financial statements are issued, which may result in a loss to the Company but which will only be resolved when one or more future events occur or fail to occur. The Company’s management and its legal counsel assess such contingent liabilities, and such assessment inherently involves an exercise of judgment. In assessing loss contingencies related to legal proceedings that are pending against the Company or unasserted claims that may result in such proceedings, the Company and its legal counsel evaluate the perceived merits of any legal proceedings or unasserted claims as well as the perceived merits of the amount of relief sought or expected to be sought therein.

If the assessment of a contingency indicates that it is probable that a material loss has been incurred and the amount of the liability can be estimated, then the estimated liability would be accrued in the Company’s financial statements. If the assessment indicates that a potentially material loss contingency is not probable, but is reasonably possible, or is probable but cannot be estimated, then the nature of the contingent liability, together with an estimate of the range of possible loss if determinable and material, would be disclosed.

Loss contingencies considered remote are generally not disclosed unless they involve guarantees, in which case the nature of the guarantee would be disclosed.

Stock-Based Compensation

The Company accounts for all share-based payment transactions using a fair-value based measurement method. The Company calculates stock option-based compensation by estimating the fair value of each option as of its date of grant using the Black-Scholes option pricing model. The fair value of restricted stock and restricted stock unit grants is calculated based upon the closing stock price of the Company’s common stock on the date of the grant. These amounts are expensed over the requisite service period of each award, which is the vesting period, using the straight-line attribution method. Compensation expense is recognized only for those awards that are expected to vest, and, as such, amounts have been reduced by estimated forfeitures. The Company has historically issued stock options, restricted stock units and vested and nonvested stock grants to employees and outside directors whose only condition for vesting has been continued employment or service during the related vesting or restriction period.

Revenue Recognition

The Company recognizes product revenue when all of the following have occurred: (1) the Company has entered into a legally binding arrangement with a customer resulting in the existence of persuasive evidence of an arrangement; (2) delivery has occurred, evidenced when product title transfers to the customer; (3) customer payment is deemed fixed or determinable and free of contingencies and significant uncertainties; and (4) collection is probable.

Sales of the Company’s PacketLogic products typically involve the integration of software and a hardware appliance, where the hardware and software work together to deliver the essential functionality of the product. Product revenue consists of revenue from sales of appliances and software licenses. PacketLogic product sales include a perpetual license to the Company’s software that is essential to the functionality of the hardware, and on occasion include licenses to additional software. Network Application Visibility Library (“NAVL”) sales include term licenses sold as a subscription. Revenue from sales of term licenses is recognized ratably over the subscription term, generally one year. Shipping charges billed to customers are included in product revenue and the related shipping costs are included in cost of product revenue. Virtually all sales include post-contract support (“PCS”) services (included in support revenue), which consist of software updates and customer support. Software updates provide customers access to a growing library of electronic Internet traffic identifiers (signatures) and rights to non-specific software product upgrades, maintenance releases and patches released during the term of the support period. Support includes Internet access to technical content, telephone and Internet access to technical support personnel and hardware support.

Receipt of a customer purchase order is the primary method of determining that persuasive evidence of an arrangement exists.

Delivery of PacketLogic products generally occurs when a product is delivered to a common carrier F.O.B. shipping point. However, product revenue based on channel partner purchase orders is recorded based on obtaining evidence of sell-through to the end user customers until such time as the Company has established significant experience with the channel partner’s ability to complete the sales process, which requires judgment. Additionally, when the Company introduces new products for which there is no historical evidence of acceptance history, revenue is recognized on the basis of end-user acceptance until such history has been established. Delivery of Packetlogic license upgrades and NAVL licenses occur when such licenses are made available to customers.

Fees are typically considered to be fixed or determinable at the inception of an arrangement, generally based on specific products and quantities to be delivered. The Company’s contracts do not generally include rights of return or acceptance provisions. To the extent that agreements contain such terms, the Company recognizes revenue once the acceptance provisions or right of return lapses. Payment terms to customers generally range from net 30 to 90 days. Certain customers are occasionally granted longer terms based on the Company’s assessment of their credit risk. In the event payment terms are provided that differ from the Company’s standard business practices, the fees are deemed to not be fixed or determinable and revenue is recognized when the payments become due, provided the remaining criteria for revenue recognition have been met.

The Company assesses the ability to collect from its customers based on a number of factors, including credit worthiness of the customer and past transaction history of the customer. If the customer is not deemed credit worthy, the Company defers revenue from the arrangement until payment is received and all other revenue recognition criteria have been met.

Customer orders normally contain multiple items. The initial PacketLogic product delivery consists of the hardware and software elements, and these elements have standalone value to the customer. Through the year ended December 31, 2014, the elements that remained undelivered at the time of product delivery were PCS services and occasionally uncompleted professional services not essential to the functionality of the product. Orders for the NAVL products consist of term software licenses and PCS services which are recognized ratably over the term of the arrangement, typically one year.

Under the revenue recognition guidance discussed in the first paragraph above, the Company allocates revenue to each element in an arrangement based on relative selling price using a selling price hierarchy. The selling price for a deliverable is based on its VSOE, if available, third party evidence (“TPE”), if VSOE is not available, or the Company’s best estimate of selling price (“ESP”), if neither VSOE nor TPE is available. The maximum revenue recognized on a delivered element is limited to the amount that is not contingent upon the delivery of additional items. In arrangements that include NAVL or non-essential software (“software deliverables”), revenue is allocated to each separate unit of accounting for the non-software deliverables and to the software deliverables as a group using the relative selling prices of each of the deliverables in the arrangement. Revenue allocated to the software deliverables as a group is then allocated first to the PCS services based on VSOE, and then to the software, using the residual method under the software revenue recognition guidance.

The Company determines VSOE for PCS based on a percentage of products purchased, with different rated based on service level. The Company has determined that these rates represent VSOE for PCS based on its history of charging these rates for PCS to customers upon renewal. The Company has a history of such renewals, the vast majority of which are at the VSOE rate on a customer basis. PCS revenue is recognized ratably over the life of the contract. A portion of service revenue is derived from customization not essential to the functionality of the product, implementation and training services. The Company uses the completed-contract method to recognize such revenue.

As the PacketLogic hardware and software products are rarely sold separately, the Company generally does not have VSOE for these products, and TPE is not available. The Company determines the ESP for these hardware and software deliverables considering internal factors such as discounting and pricing policies, and external factors such as market conditions in different geographies and competitive positioning.

In certain contracts, billing terms may be agreed upon based on performance milestones such as the execution of a measurement test, a partial delivery or the completion of a specified service. Payments received before the unconditional acceptance of a specific set of deliverables are recorded as deferred revenue until the conditional acceptance has been waived.

Income Taxes

The Company accounts for income taxes under an asset and liability approach. This process involves calculating the temporary and permanent differences between the carrying amounts of the assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The temporary differences result in deferred tax assets and liabilities, which are recorded on the Company’s consolidated balance sheets. The Company must assess the likelihood that its deferred tax assets will be recovered from future taxable income and, to the extent the Company believes that recovery is not likely, the Company must establish a valuation allowance. Changes in the Company’s valuation allowance in a period are recorded through the income tax provision on the consolidated statements of operations. The impact of an uncertain income tax position on the income tax return is recognized at the largest amount that is more-likely-than-not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained.

Shipping and Handling Costs

The Company includes shipping and handling costs associated with inbound and outbound freight in costs of goods sold.

Research and Development

Research and development expenses include internal and external costs. Internal costs include salaries and employment related expenses, prototype materials, initial product certifications, equipment costs and allocated facility costs. External expenses consist of costs associated with outsourced software development activities.

Development costs incurred in the research and development of new products, other than software, and enhancements to existing products are expensed as incurred. Costs for the development of new software products and enhancements to existing products are expensed as incurred until technological feasibility has been established, at which time any additional development costs would be capitalized. To date, the Company’s software has been available for general release shortly after being determined to be technologically feasible, which the Company defines as a working prototype. Accordingly, those costs have not been material.

Advertising Costs

Advertising expenses consist primarily of costs incurred in the design, development and printing of Company literature and marketing materials. Advertising costs are expensed as incurred. Advertising expenses were not significant for the years ended December 31, 2014, 2013 and 2012.

Comprehensive Income (Loss)

Comprehensive income (loss) consists of net income or loss and other gains and losses affecting stockholders’ equity that, under generally accepted accounting principles, are excluded from net income or loss. For the Company, such items consist of unrealized gains and losses on available-for-sale short-term investments and foreign currency translation gains and losses.

Foreign Operations

The accompanying balance sheets contain certain recorded Company assets in foreign countries, primarily Sweden, Canada and Australia. Although these countries are considered economically stable and the Company has experienced no notable burden from foreign exchange transactions, export duties or government regulations, it is always possible that unanticipated events in foreign countries could have a material adverse effect on the Company’s operations.

Foreign Currency Translation

The functional currency of the Company’s foreign subsidiaries is the local currency. The revenue and expenses of such subsidiaries have been translated into U.S. dollars at average exchange rates prevailing during the period. Assets and liabilities have been translated at the rates of exchange on the balance sheet date. The resulting cumulative translation adjustments are reported in comprehensive income (loss). Currency transaction gains and losses are recognized in current operations.

Business Segments

The Company has one reportable operating segment. The Company's Chief Operating Decision Maker ("CODM"), the Chief Executive Officer, evaluates performance and makes decisions regarding allocation of resources based on certain metrics including segment revenue, gross profit and operating income (loss) measures (see Note 16).

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2014
Recent Accounting Pronouncements [Abstract]
Recent Accounting Pronouncements	3	Recent Accounting Pronouncements

	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers”, issued as a new Topic, ASC Topic 606. The new revenue recognition standard provides a five-step analysis of transactions to determine when and how revenue is recognized. The core principle of the guidance is that a company should recognize revenue to depict the transfer of promised goods and services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This ASU is effective beginning in fiscal year 2017 and can be adopted by the Company either retrospectively or as a cumulative-effect adjustment as of the date of adoption. The Company is currently evaluating the effect that adopting this new accounting guidance will have on its consolidated results of operations, cash flows and financial position.

	In June 2014, the FASB issued ASU No. 2014-12, “Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period”, or ASU 2014-12. The amendments in ASU 2014-12 require that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition. A reporting entity should apply the existing guidance in ASC Topic No. 718, “Compensation – Stock Compensation”, as it relates to awards with performance conditions that affect vesting to account for such awards. The amendments in ASU 2014-12 are effective for annual periods and interim periods within those annual periods beginning after December 15, 2015. Early adoption is permitted. Entities may apply the amendments in ASU 2014-12 either: (1) prospectively to all awards granted or modified after the effective date; or (2) retrospectively to all awards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new or modified awards thereafter. The adoption of ASU 2014-12 is not expected to have a material effect on the Company’s consolidated financial statements or disclosures.

	In August 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements”, which provides new guidance related to the disclosures around going concern. The new standard provides guidance around management’s responsibility to evaluate whether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. Early adoption is permitted. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial statements.

Cash_Equivalents_and_Shortterm

Cash Equivalents and Short-term Investments	12 Months Ended
Cash Equivalents and Short-term Investments	Dec. 31, 2014
Cash Equivalents And Short Term Investments [Abstract]
Cash Equivalents and Short-term Investments	4	Cash Equivalents and Short-term Investments

	The Company’s cash equivalents and short-term investments at December 31, 2014 are as follows (in thousands):

			Amortized		Gross		Gross			Fair
			Cost		Unrealized		Unrealized			Value
					Gains		Losses
	Money market funds		$	109	$	-	$	-		$	109
	Commercial paper			10,794		2		-			10,796
	Treasury and agency notes and bills			54,442		5		(6	)		54,441
	Corporate bonds			25,419		2		(16	)		25,405
	Total investments		$	90,764	$	9	$	(22	)	$	90,751

	Reported as:
	Cash equivalents		$	6,208	$	1	$	-		$	6,209
	Short-term investments			84,556		8		(22	)		84,542
	Total		$	90,764	$	9	$	(22	)	$	90,751

	The Company’s cash equivalents and short-term investments at December 31, 2013 are as follows (in thousands):

			Amortized		Gross		Gross			Fair
			Cost		Unrealized		Unrealized			Value
					Gains		Losses
	Money market funds		$	79,869	$	-	$	-		$	79,869
	Commercial paper			15,776		13		-			15,789
	Total investments		$	95,645	$	13	$	-		$	95,658

	Reported as:
	Cash equivalents		$	79,869	$	-	$	-		$	79,869
	Short-term investments			15,776		13		-			15,789
	Total		$	95,645	$	13	$	-		$	95,658

	As of December 31, 2014, all investments were classified as available-for-sale with unrealized gains and losses recorded as a separate component of comprehensive income (loss). Cash equivalents consist of highly liquid investments with remaining maturities of three months or less at the date of purchase. Short-term investments generally have a remaining maturity of greater than three months at the date of purchase and an effective maturity of up to 24 months. However, the weighted average maturity of the portfolio does not exceed 12 months. As of December 31, 2014 and 2013, the Company had certain investments with a maturity greater than one year. Investments with maturities greater than one year were $12.8 million and $3.7 million as of December 31, 2014 and 2013, respectively. However, management has the ability, if necessary, to liquidate any of its investments in order to meet the Company’s liquidity needs in the next 12 months. Accordingly, investments with contractual maturities greater than one year from the date of purchase are classified as short-term on the accompanying consolidated balance sheets. None of the Company’s short-term investments have been at a continuous unrealized loss position for greater than 12 months.

	The Company did not identify any investments that were other-than-temporarily impaired during the years ended December 31, 2014 and 2013.

	The Company did not incur any material realized gains or losses in the years ended December 31, 2014, 2013 and 2012.

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2014
Fair Value Measurements [Abstract]
Fair Value Measurements	5	Fair Value Measurements

	Fair value is the price that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining fair value, the Company considers the principal or most advantageous market in which it would transact, and considers assumptions that market participants would use when pricing the asset or liability.

	Fair Value Hierarchy

	The three levels of inputs that may be used to measure fair value are as follows:

		Level 1-	Quoted prices in active markets for identical assets or liabilities.

		Level 2-	Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets with insufficient volume or infrequent transactions (less active markets), or model-derived valuations in which all significant inputs are observable or can be derived principally from or corroborated with observable market data for substantially the full term of the assets or liabilities.

		Level 3-	Unobservable inputs to the valuation methodology that are significant to the measurement of the fair value of assets or liabilities.


	The following tables represent the Company’s fair value hierarchy for its financial assets as of December 31, 2014 measured at fair value on a recurring basis (in thousands):

			Level 1		Level 2		Level 3		Total
	Money market funds		$	109	$	-	$	-	$	109
	Commercial paper			-		10,796		-		10,796
	Treasury and agency notes and bills			-		54,442		-		54,442
	Corporate bonds			-		25,404		-		25,404
	Total assets measured at fair value		$	109	$	90,642	$	-	$	90,751

	The following tables represent the Company’s fair value hierarchy for its financial assets as of December 31, 2013 measured at fair value on a recurring basis (in thousands):

			Level 1		Level 2		Level 3		Total
	Money market funds		$	79,869	$	-	$	-	$	79,869
	Commercial paper			-		15,789		-		15,789
	Total assets measured at fair value		$	79,869	$	15,789	$	-	$	95,658

	In general, and where applicable, the Company uses quoted market prices in active markets for identical assets to determine fair value. This pricing methodology applies to Level 1 investments which are comprised of money market funds. If quoted prices in active markets for identical assets are not available, then the Company uses quoted prices for similar assets or inputs other than quoted prices that are observable, either directly or indirectly. These investments are included in Level 2 and consist of commercial paper, U.S. agency securities and corporate bonds. U.S. agency securities and corporate bonds are valued at a consensus price, which is a weighted average price based on market prices from a variety of industry standard data providers used as inputs to a distribution-curve based algorithm. Certificates of deposit and commercial paper are valued using market prices when available, adjusting for accretion of the purchase price to face value at maturity.

	During the years ended December 31, 2014 and 2013, the Company did not have any transfers between Level 1 and Level 2 fair value instruments.

Acquisitions

Acquisitions	12 Months Ended
Acquisitions	Dec. 31, 2014
Acquisitions [Abstract]
Acquisitions	6	Acquisitions

	On January 9, 2013, the Company completed its acquisition of Vineyard Networks Inc. (“Vineyard”), a privately held developer of Layer 7 DPI and application classification technology located in Kelowna, Canada. Vineyard’s integrated DPI and application classification technology provides enterprise and service provider networking infrastructure vendors with these capabilities through its integrated software suite, primarily through a variety of subscription based original equipment manufacturer and partner agreements. This acquisition complements the Company’s hardware and application software-based DPI solutions.

	The total purchase price was $20.9 million, consisting of $9.8 million cash consideration and $11.1 million in the Company’s common stock in exchange for 100% of the outstanding securities of Vineyard. Of the consideration paid, $2.0 million and $1.9 million in cash and stock, respectively, was placed into escrow for a period of 18 or 36 months from the closing of the acquisition and to be released subject to resolution of certain contingencies. In July 2014, $1.9 million and $1.8 million in cash and stock, respectively, was released from escrow. In addition to the purchase consideration, the Company recorded deferred compensation of $5.9 million, consisting of $2.7 million in cash consideration and $3.2 million in the Company’s common stock, related to retention agreements with Vineyard’s three founders, which was disbursed from the escrow account in January 2014 after one year of continuous employment with the Company. The Company recognized $0.1 million and $5.8 million in compensation costs related to these retention agreements for the years ended December 31, 2014 and 2013, respectively.

	For the year ended December 31, 2014, Vineyard contributed $4.4 million in revenue and $13.9 million in net loss, of which $12.4 million relates to the Company’s impairment charge recorded in the three months ended September 30, 2014. See Note 7 – “Goodwill and Intangible Assets” for additional details. For the year ended December 31, 2013, Vineyard contributed $2.7 million in revenue and $2.6 million in net loss.

	The Company recognized acquisition-related costs for Vineyard of $1.0 million during the first quarter of 2013. These acquisition-related charges were expensed in the period incurred and reported in the Company’s consolidated statements of operations within general and administrative expenses.

	The following table summarizes the net assets and liabilities acquired, including identifiable intangible assets, based on their respective fair values at the acquisition date (in thousands):

	Assets acquired
	Cash		$	822
	Accounts receivable, net			525
	Other current assets			2,095
	Identifiable intangible assets			8,460
	Goodwill (1)			12,346
	Other assets			303
	Total assets acquired			24,551
	Liabilities assumed
	Accounts payable and other accrued liabilities			420
	Deferred revenue			555
	Notes payable			511
	Deferred tax liability			2,141
	Total liabilities assumed			3,627
	Net assets acquired		$	20,924

	-1	The Company made an election under Section 338(g) of the Internal Revenue Code of 1986, as amended, which resulted in tax-deductible goodwill related to the Vineyard transaction. The Company estimated that the tax-deductible goodwill and intangibles resulting from the election will approximate $17.6 million, to be amortized for U.S. tax purposes over a 15 year period that began on January 1, 2014.

	Intangible Assets Acquired

	The following table presents details of the intangible assets acquired in connection with the acquisition of Vineyard, which was completed during the first quarter of 2013 (in thousands, except years):

			Estimated Useful				Amount
			Life
			(in years)
	Developed technology			5			$	5,910
	Customer relationships			5				2,550
	Total						$	8,460

	Acquired technology consists of existing research and development projects at the time of the acquisition that have reached technological feasibility. No in-process research and development was included in acquired intangible assets as of the acquisition date.

	Pro Forma Financial Information

	The following tables summarize the supplemental consolidated statements of operations information on an unaudited pro forma basis as if the acquisition of Vineyard occurred on January 1, 2012 and includes adjustments that were directly attributable to the foregoing transaction or were not expected to have a continuing impact on the Company. The pro forma results are for illustrative purposes only for the applicable period and do not purport to be indicative of the actual results that would have occurred had the transactions been completed as of the beginning of the period, nor are they indicative of results of operations that may occur in the future (in thousands, except per share amounts):

			December 31,
			2013				2012
	Pro forma revenues		$	75,738			$	61,535
	Pro forma net loss			(7,827	)			(3,718	)
	Basic and diluted loss per share			(0.39	)			(0.20	)






	The pro forma financial information reflects acquisition-related expenses incurred, pro forma adjustments for the additional amortization associated with finite-lived intangible assets acquired, deferred compensation costs related to the retention of certain Vineyard employees, the change in stock compensation expense as a result of the exercise of stock options immediately prior to the closing of the Vineyard transaction, stock compensation related to the stock options granted to Vineyard employees, and the related tax expense. The pro forma net loss per share amounts also reflect the impact of the issuance of 518,000 shares in connection with the acquisition as if they were issued in January 2012.

	These adjustments are as follows (in thousands):

			December 31,
			2013				2012
Acquisition-related expenses for Vineyard		$	(1,026	)		$	-
Intangible amortization			36				1,661
Net change in stock compensation expense			(636	)			1,727
Increase (decrease) in deferred compensation expense			(5,809	)			5,874
Increase in weighted average common shares outstanding for shares issued and not already included in the weighted average common shares outstanding			165				518

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	12 Months Ended
Goodwill and Intangible Assets	Dec. 31, 2014
Goodwill and Intangible Assets [Abstract]
Goodwill and Intangible Assets	7	GOODWILL AND INTANGIBLE ASSETS

	Changes in the carrying value of goodwill for the twelve months ended December 31, 2014 were as follows (in thousands):

			Year Ended
			December 31,
			2014
	Balance, December 31, 2013		$	12,326
	Impairment of goodwill			(10,840	)
	Translation adjustments			(526	)
	Balance, December 31, 2014		$	960

	The Company reviews its goodwill for impairment annually during the fourth quarter of the year or more frequently if events or circumstances indicate that an impairment loss may have occurred. The identification and measurement of goodwill impairment involves the estimation of fair value at a reporting unit level.

	During the third quarter of fiscal year 2014, the Company considered the effect of the economic environment in which its NAVL reporting unit markets its products and determined that sufficient indicators existed requiring it to perform an interim impairment review of NAVL goodwill. The indicators consisted primarily of: (1) decelerating revenue growth during the third quarter of fiscal year 2014 and a decline in forecasted revenue in future quarters, and (2) lower than anticipated total addressable market for NAVL products.

	The Company performed an impairment review for goodwill at the NAVL reporting unit level. In step one, the fair value of the NAVL reporting unit was compared to the carrying value. Based on this review, the Company determined that the carrying value exceeded the fair value indicating potential impairment. Therefore, the Company next performed step two, in which the fair value of the reporting unit was allocated to all of the assets and liabilities of the reporting unit on a fair value basis, including any unrecognized intangible assets, with any excess representing the implied fair value of goodwill. The fair value was determined using an income approach. Under the income approach, the present value of estimated future cash flows is determined based on management’s forecast of revenue growth rates and operating margins. As a result of reduced revenue growth rate assumptions associated with the impairment indicators noted above, the implied fair value of NAVL goodwill was determined to be zero. Therefore, the Company recorded an impairment charge for goodwill of $10.9 million during the third quarter of fiscal year 2014, representing 100% of the NAVL goodwill balance at September 30, 2014. The impairment charge is included in the Company’s consolidated statement of operations. The Company also recognized a deferred tax benefit of $0.1 million associated with the goodwill impairment charge.

	No indicators were present in 2014 that would suggest impairment of the Comapny's remaining goodwill balance of $960,000, assigned to the Comapny's PacketLogic reporting unit. The Company performed its routine annual goodwill impairment test for goodwill assigned to the PacketLogic reporting unit during the fourth quarter of 2014 which indicated no impairment.

	The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be reoverable. Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset. Measurement of an impairment loss for long-lived assets is based on the amount by which the carrying value of the asset exceeds its fair value based on the discounted future cash flows.

	As a result of the indicators noted above, the Company also evaluated the long-lived assets within the NAVL reporting unit for impairment. Such assets include acquired intangible assets and property, plant and equipment. The asset group evaluated included the entire NAVL reporting unit. The Company determined that the sum of the undiscounted future cash flows of the NAVL reporting unit did not exceed the carrying value of NAVL assets, indicating potential impairment. As a result, the fair value was determined for NAVL long-lived assets using an income approach as described above, which was then compared to the assets’ relative carrying values. As a result of reduced revenue growth rate assumptions associated with the impairment indicators noted above, the Company determined that the fair value of the NAVL intangible assets was below their carrying value, resulting in a partial impairment of the NAVL intangible assets. The Company recorded impairment charges for the third quarter of fiscal year 2014 of $0.7 million related to developed technology and $0.8 million related to customer relationships. The impairment charges are included in the Company’s consolidated statement of operations.

	Intangible assets other than goodwill are amortized on a straight-line basis over their estimated remaining useful lives.

	The following table is a summary of acquired intangible assets with remaining net book values at December 31, 2014 (in thousands, except weighted average remaining life):

			Gross			Accumulated			Net			Weighted
			Carrying			Amortization			Carrying			Average
			Value						Value			Remaining Life
	Developed technology		$	4,323		$	(1,927	)	$	2,396			3.02
	Customer relationships			1,354			(793	)		561			3.02
	Balance at December 31, 2014		$	5,677		$	(2,720	)	$	2,957

	The following table is a summary of acquired intangible assets with remaining net book values at December 31, 2013 (in thousands, except weighted average remaining life):

			Gross			Accumulated			Net			Weighted
			Carrying			Amortization			Carrying			Average
			Value						Value			Remaining Life
	Developed technology		$	5,446		$	(1,066	)	$	4,380			4.01
	Customer relationships			2,350			(460	)		1,890			4.01
	Balance at December 31, 2013		$	7,796		$	(1,526	)	$	6,270

	Amortization expense related to developed technology for the years ended December 31, 2014 and 2013 was $1.0 million and $1.1 million, respectively. Amortization expense related to customer relationships for the years ended December 31, 2014 and 2013 was $0.4 million and $0.5 million, respectively.

	The changes in the carrying value of acquired intangible assets during the year ended December 31, 2014 were as follows (in thousands):

			Gross			Accumulated			Net
			Carrying			Amortization			Carrying
			Value						Value
	Balance at December 31, 2013		$	7,796		$	(1,526	)	$	6,270
	Impairment of intangible assets			(1,540	)		—			(1,540	)
	Additions			—			(1,384	)		(1,384	)
	Translation adjustments			(579	)		190			(389	)
	Balance at December 31, 2014		$	5,677		$	(2,720	)	$	2,957

	The following table presents the estimated future amortization of intangible assets as of December 31, 2014 (in thousands):

	Fiscal Year		Amortization
	2015		$	979
	2016			979
	2017			979
	2018			20
Total		$	2,957

Balance_Sheet_Details

Balance Sheet Details	12 Months Ended
Balance Sheet Details	Dec. 31, 2014
Balance Sheet Details [Abstract]
Balance Sheet Details	8	Balance Sheet Details

	Inventories

	Inventories are stated at the lower of cost (on a specific identification or weighted average cost basis), or market. Inventories at December 31, 2014 and 2013 consisted of the following (in thousands):

			December 31,
				2014			2013
	Finished goods		$	14,638		$	18,617
	Raw materials			199			219
	Inventories, net		$	14,837		$	18,836

	Property and Equipment

	The following is a summary of property and equipment as of December 31, 2014 and 2013 (in thousands):

			December 31,
			2014			2013
	Machinery and equipment		$	10,787		$	9,343
	Computer equipment			563			488
	Office furniture and equipment			581			387
	Leasehold improvements			1,894			539
	Software			274			326
	Accumulated depreciation			(5,777	)		(3,962	)
	Property and equipment, net		$	8,322		$	7,121

	Depreciation expense for the years ended December 31, 2014, 2013 and 2012 was $2.4 million, $1.9 million and $0.9 million, respectively.

	Accrued Liabilities

	Accrued liabilities at December 31, 2014 and 2013 consisted of the following (in thousands):

			December 31,
			2014			2013
	Payroll and related		$	3,398		$	3,179
	Sales commissions			1,778			1,608
	Warranty			113			131
	Audit and legal services			231			198
	Other			1,715			1,605
	Total accrued liabilities		$	7,235		$	6,721

	Warranty Reserve

	Changes in the warranty reserve during the years ended December 31, 2014 and 2013 were as follows (in thousands):

			December 31,
			2014			2013
	Warranty accrual, beginning of period		$	131		$	406
	Provision for current period sales			140			58
	Change in liability for pre-existing warranties			(60	)		(115	)
	Deductions for warranty claims processed during the period			(98	)		(218	)
	Warranty accrual, end of period		$	113		$	131

	Accumulated Other Comprehensive Income (Loss)

	The components of accumulated other comprehensive loss were as follows (in thousands):

			December 31,
			2014			2013
	Accumulated net unrealized gain (loss) on short-term investments		$	(13	)	$	13
	Accumulated foreign currency translation adjustments			(3,177	)		(1,910	)
	Accumulated other comprehensive loss		$	(3,190	)	$	(1,897	)

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2014
Related Party Transactions [Abstract]
Related Party Transactions	9	Related Party Transactions

	On July 19, 2010, the Company entered into a Master OEM Purchase and Sales Agreement (the “OEM Agreement”) with GENBAND US LLC and GENBAND Ireland Ltd. (collectively, “GENBAND”), pursuant to which GENBAND could purchase any of the Company’s existing software and hardware products, as well as procure licenses and services related to such products from the Company. Pursuant to the OEM Agreement, the Company’s Board of Directors supported the election of Mark Pugerude, Chief Strategy Officer of GENBAND, as a director of the Company beginning in fiscal 2012 through the Company’s 2012 Annual Meeting of Stockholders on August 27, 2012, and B.G. Kumar, Executive Vice President and President of the Networking and Applications Product Unit of GENBAND, as a director of the Company beginning on August 27, 2012, the date of the Company’s 2012 Annual Meeting of Stockholders. Mr. Kumar’s service on the Company’s Board of Directors ended on May 30, 2013, the date of the Company’s 2013 Annual Meeting of Stockholders.

	The Company recognized no revenue on sales to GENBAND in fiscal 2014. During the years ended December 31, 2013 and 2012, the Company recognized revenue of approximately $0.1 million and $1.7 million, respectively, on sales to GENBAND.

	Effective April 15, 2013, the Company and GENBAND terminated the OEM Agreement and the letter agreement, dated July 19, 2010 (the “Letter Agreement”), between the Company and GENBAND US LLC. The terminations of the OEM Agreement and the Letter Agreement were effected pursuant to the execution of a transition agreement between the Company and GENBAND. The transition agreement permits GENBAND to continue to perform its functions for existing customers, as provided under the OEM Agreement, for the remainder of the current service term, and further provides that the Company will continue to provide support or maintenance to GENBAND’s existing customers under or in connection with the OEM Agreement and for which GENBAND previously submitted a purchase order.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2014
Commitments and Contingencies [Abstract]
Commitments and Contingencies	10	Commitments and Contingencies

	Legal

	The Company is periodically involved in legal actions and claims that arise as a result of events that occur in the normal course of operations. The Company does not believe that any of its legal actions and claims will have, individually or in the aggregate, a material adverse effect on the Company’s financial position or results of operations.

	Operating Leases

	The Company leases its operating and office facilities for various terms under long-term, non-cancelable operating lease agreements. The leases expire at various dates through 2024 and provide for renewal options ranging from month-to-month to five year terms. In the normal course of business, it is expected that these leases will be renewed or replaced by leases on other properties. The leases provide for increases in future minimum annual rental payments based on defined increases which are generally meant to correlate with the Consumer Price Index, subject to certain minimum increases. Also, the agreements generally require the Company to pay executory costs (real estate taxes, insurance and repairs).

	As of December 31, 2014, future minimum lease payments due under operating leases were as follows (in thousands):

	Years ending December 31,
	2015		$	1,016
	2016			896
	2017			666
	2018			411
	2019			237
	Beyond			1,145
	Total minimum lease payments		$	4,371

	Rent expense for operating leases was $0.9 million for the year ended December 31, 2014, and $0.8 million and $0.4 million for the years ended December 31, 2013 and 2012, respectively.

	Purchase Commitments with Suppliers

	The Company issues purchase orders to third-party suppliers that may not be cancelable. As of December 31, 2014, the Company had open non-cancelable purchase orders amounting to approximately $16.3 million, primarily with the Company’s third-party suppliers.

Guarantees

Guarantees	12 Months Ended
	Dec. 31, 2014
Guarantees [Abstract]
Guarantees	11	Guarantees

	Indemnification Agreements

	The Company enters into standard indemnification arrangements with certain of its business partners and customers in the ordinary course of business. Pursuant to these arrangements, the Company agrees to indemnify, hold harmless and reimburse the indemnified parties for losses suffered or incurred by the indemnified party, generally business partners or customers, in connection with any patent, or any copyright or other intellectual property infringement claim by any third party with respect to the Company’s products. The term of these indemnification agreements is generally perpetual any time after the execution of the agreement. The maximum potential amount of future payments the Company could be required to make under these agreements is unlimited. The Company has never been a party to an infringement claim with respect to its products or incurred costs to defend lawsuits or settle claims related to these indemnification agreements. As a result, the Company believes the estimated fair value of these agreements is minimal.

	The Company has entered into indemnification agreements with its directors and officers that may require the Company to indemnify its directors and officers against liabilities that may arise by reason of their status or service as directors or officers, other than liabilities arising from willful misconduct of a culpable nature; to advance their expenses incurred as a result of any proceeding against them as to which they could be indemnified; and to obtain directors’ and officers’ insurance if available on reasonable terms, which the Company currently has in place. The Company has not been required to indemnify any directors or officers under these agreements.

Stockholders_Equity

Stockholders' Equity	12 Months Ended
Stockholders' Equity	Dec. 31, 2014
Stockholders' Equity [Abstract]
Stockholders' Equity	12	Stockholders’ Equity

	Preferred Stock

	The Company is authorized to issue up to 15.0 million shares of preferred stock, par value $0.001 per share. As of December 31, 2014 and 2013, no shares of preferred stock were issued and outstanding.

	Common Stock Transactions

	On January 9, 2013, the Company issued 825,000 unregistered shares of its common stock with a value of approximately $14.3 million, pursuant to the Company’s acquisition of Vineyard as part of the purchase consideration in exchange for 100% of the outstanding securities of Vineyard and deferred compensation to the founders of Vineyard. On February 13, 2013, the Company filed with the SEC a Registration Statement on Form S-3 covering the resale of these shares. The Registration Statement on Form S-3 was declared effective by the SEC on March 7, 2013. Pursuant to the Vineyard acquisition agreement, 518,000 shares were transferred to the former Vineyard shareholders at closing, with the remainder being held in escrow for a period of 12, 18 or 36 months from the closing of the acquisition. In January 2014, 178,000 shares were released from the escrow related to the retention agreements with Vineyard’s three founders after one year of continuous employment with the Company. In July 2014, 124,000 shares were released from escrow related to the resolution of certain contingencies. As of December 31, 2014, 5,000 shares remain in escrow.

	Stock Incentive Plans

	In August 2003, October 2004 and October 2007, the Company’s Board of Directors (the “Board”), and subsequently its stockholders, adopted the 2003 Stock Option Plan, 2004 Stock Option Plan and 2007 Equity Incentive Plan, respectively (collectively referred to as the “Plan”). In March 2011, the Board approved an increase of 400,000 shares of common stock that may be issued under the Plan to an aggregate of 1,100,000 shares. This increase was approved by the Company’s stockholders at the 2011 Annual Meeting of Stockholders. In March 2012, the Board approved an increase of 800,000 shares of common stock under the Plan, which increase was approved by the Company’s stockholders at the 2012 Annual Meeting of Stockholders. In March 2013, the Board approved an increase of 500,000 shares of common stock under the Plan, which increase was approved by the Company’s stockholders at the 2013 Annual Meeting of Stockholders. The aggregate number of shares reserved for issuance under the Plan at December 31, 2014 is 1,900,000.

	The purpose of the Plan is to enable the Company to offer stock-based incentives to employees, directors and consultants with the objective of aligning those individuals’ interests with those of stockholders. Under the Plan, the Company is authorized to grant a wide variety of incentive awards, including incentive stock options, non-statutory stock options, restricted stock awards, restricted stock unit awards, stock appreciation rights, performance stock awards and performance cash awards to employees, directors and consultants. Incentive stock options may only be granted to Company employees.

	As of December 31, 2014, 249,000 shares were available for future grant under the Plan. The options under the Plan vest over varying lengths of time pursuant to various option agreements that the Company has entered into with the grantees of such options. The Plan is administered by the Board. Subject to the provisions of the Plan, the Board has authority to determine the employees, directors and consultants who are to be awarded options and the terms of such awards, including the number of shares subject to such options, the fair market value of the common stock subject to options, the exercise price per share and other terms.

	Incentive stock options must have an exercise price equal to at least 100% of the fair market value of a share on the date of the award and generally cannot have a duration of more than ten years. If the grant is to a stockholder holding more than 10% of the Company’s voting stock, the exercise price must be at least 110% of the fair market value on the date of grant. Options generally vest over a period of three to five years. Stock option exercises are settled with newly issued shares of common stock approved by stockholders for inclusion under the Plan. Awards are set forth in written agreements between the Company and the respective option holders. Awards under the Plan may not be made after the tenth anniversary of the date of adoption of each respective stock option plan but awards granted before that date may extend beyond that date.

	Optionees have no rights as stockholders with respect to shares subject to the option prior to the exercise thereof. An option becomes exercisable at such time and for such amounts as determined by the Board. An optionee may exercise a part of the option from the date that part first becomes exercisable until the option expires. The purchase price for shares to be issued to an employee upon his or her exercise of an option is determined by the Board on the date the option is granted. The Plan provides for adjustment as to the number and kinds of shares covered by the outstanding options and the option price therefore to give effect to any stock dividend, stock split, stock combination or other reorganization.

	Restricted stock awards are awards of shares of common stock that vest in accordance with terms and conditions established by the Board. Each restricted stock award is evidenced by an award agreement that sets forth the terms and conditions of the award. The Board sets the terms of the restricted stock award, including the size of the restricted stock award, the price to be paid by the recipient, if any, the vesting schedule and any performance criteria that may be required for the stock to vest. The award may vest based on continued employment and/or the achievement of performance goals. If a participant’s service terminates before the restricted stock is fully vested, all of the unvested shares will be forfeited by the participant unless otherwise provided in the restricted stock award agreement.

	Restricted stock unit awards are awards of units that relate to shares of common stock that vest in accordance with terms and conditions established by the Board. Each restricted stock unit award is evidenced by an award agreement that sets forth the terms and conditions of the award. The Board sets the terms of the restricted stock unit award, including the size of the restricted stock unit award, the price to be paid by the recipient, if any, the vesting schedule and any performance criteria that may be required for the award to vest. The award may vest based on continued employment and/or the achievement of performance goals. If a participant’s service terminates before the restricted stock unit is fully vested, all of the unvested units will be forfeited by the participant unless otherwise provided in the restricted stock unit award agreement.

	Stock Incentive Plan Activity

	Stock Options

	The following table summarizes the Company’s stock option activity (in thousands, except per share data):

			Years Ended December 31,
			2014							2013					2012
			Options				Weighted			Options			Weighted		Options			Weighted
							Average						Average					Average
							Exercise						Exercise					Exercise
							Price						Price					Price
	Outstanding at the beginning of the year			1,824			$	15.07			1,332		$	14.93		1,198		$	10.35
	Granted			281				9.24			941			15.64		629			20.64
	Exercised			(62	)			5.67			(82	)		7.36		(372	)		10.24
	Cancelled			(398	)			14.71			(367	)		18.3		(123	)		14.67
	Outstanding at the end of the year			1,645			$	14.71			1,824		$	15.07		1,332		$	14.93
	Vested and expected to vest at the end of the year			1,549			$	14.78			1,702		$	14.98		1,254		$	14.66
	Exercisable at the end of the year			919			$	14.72			674		$	12.59		618		$	11.58

	As of December 31, 2014, the aggregate intrinsic value of options outstanding, options vested and expected to vest, and options exercisable was $0.4 million, $0.4 million and $0.3 million, respectively. As of December 31, 2014, the weighted average remaining contractual life of options outstanding, options vested and expected to vest, and options exercisable was 7.59 years, 7.51 years and 6.73 years, respectively. The total intrinsic value of options exercised during the years ended December 31, 2014, 2013 and 2012 was $0.3 million, $0.6 million and $3.6 million, respectively. Total fair value of options vested during 2014, 2013 and 2012 was $3.9 million, $2.2 million and $1.9 million, respectively.

	Restricted Stock

	The following is a summary of the Company’s restricted stock and restricted stock unit activity (in thousands, except per share data):

			Years Ended December 31,
			2014							2013					2012
			Awards				Weighted			Awards			Weighted		Awards			Weighted
							Average						Average					Average
							Grant Date						Grant Date					Grant Date
							Fair Value						Fair Value					Fair Value
	Unvested outstanding at the beginning of the year			302			$	16.63			253		$	15.79		136		$	9.24
	Granted			473				9.35			159			14.5		152			20.32
	Vested			(136	)			15.24			(109	)		11.52		(35	)		10.04
	Forfeited			(53	)			11.16			(1	)		20.25		-			-
	Unvested outstanding at the end of the year			586			$	11.58			302		$	16.63		253		$	15.79

Stock-Based Compensation

Stock-based employee compensation expense recognized pursuant to the Company’s stock incentive plans on the accompanying consolidated statements of operations is as follows (in thousands):

		Years Ended December 31,
		2014				2013			2012
Cost of goods sold		$	390			$	386		$	150
Research and development			1,427				1,225			322
Sales and marketing			1,525				1,682			1,175
General and administrative			1,856				1,764			1,137
Total stock-based compensation expense		$	5,198			$	5,057		$	2,784

Stock-based compensation in the year ended December 31, 2013 includes a one-time $660,000 charge associated with the acceleration of Vineyard option grants at the closing of the acquisition.

No income tax benefits were recognized in the years ended December 31, 2014, 2013 and 2012 due to operating losses and operating loss carry-forwards available to offset income. No stock-based compensation has been capitalized in inventory due to the immateriality of such amounts.

As of December 31, 2014, total unrecognized compensation cost related to unvested stock options was $5.2 million, net of estimated forfeitures, which is expected to be recognized over an estimated weighted average amortization period of 2.39 years, and total unrecognized compensation cost related to non-vested restricted stock awards was $4.8 million, net of estimated forfeitures, which is expected to be recognized over an estimated weighted average amortization period of 2.82 years.

Valuation Assumptions

The fair value of each option grant is estimated on the date of grant using the Black-Scholes option valuation model. The fair value of each restricted stock and restricted stock unit grant is calculated based upon the closing stock price of the Company’s common stock on the date of the grant. The expense for stock-based awards is recognized over the requisite service period using the straight-line attribution approach.

The following assumptions were used in determining the fair value of stock options granted during the years ended December 31, 2014, 2013 and 2012:

		Years Ended December 31,
		2014				2013			2012
Expected term (in years)			5.05				4.89			4.55
Expected volatility			64	%			76	%		78	%
Risk-free interest rate			1.57	%			1.09	%		0.65	%
Dividend yield			-	%			-	%		-	%

The weighted average grant date fair value of options granted during the years ended December 31, 2014, 2013 and 2012 was $4.64, $9.31 and $12.00, respectively.

The Company calculated the expected term of stock options granted using historical exercise data. Expected volatilities were estimated using the historical share price performance over a period equivalent to the expected term of the option. The risk-free interest rate for a period equivalent to the expected term of the option was extrapolated from the U.S. Treasury yield curve in effect at the time of the grant. The Company has never paid cash dividends and does not anticipate paying cash dividends in the foreseeable future.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2014
Income Taxes [Abstract]
Income Taxes	13	Income Taxes

	The components of income (loss) before income taxes are as follows (in thousands):

			Years Ended December 31,
			2014				2013			2012
	Domestic		$	(11,610	)		$	(13,287	)	$	1,761
	Foreign			(13,454	)			(4,174	)		3,693
	Income (loss) before income taxes		$	(25,064	)		$	(17,461	)	$	5,454

	The Company’s income tax provision (benefit) consists of the following (in thousands):

			Years Ended December 31,
			2014				2013			2012
	Current income taxes:
	Federal		$	-			$	-		$	-
	State			10				(7	)		60
	Foreign			319				237			63
	Total current income taxes			329				230			123

	Deferred income taxes:
	Foreign			(577	)			(1,407	)		-
	Total deferred income taxes			(577	)			(1,407	)		-
	Income tax provision (benefit)		$	(248	)		$	(1,177	)	$	123

	Deferred income taxes reflect the net tax effects of net operating loss and tax credit carryovers and temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Significant components of the Company’s deferred tax assets are as follows (in thousands):

			December 31,
	Deferred tax assets:		2014				2013
	Federal, state and foreign net operating losses		$	12,110			$	10,508
	Research and other tax credits			1,703				1,122
	Stock-based compensation expense			1,444				1,236
	Goodwill and intangibles			4,759				-
	Other			3,347				2,634
	Valuation allowance			(22,492	)			(14,399	)
	Total deferred tax assets			871				1,101

	Deferred tax liabilities:
	Intangible assets and others			(871	)			(1,690	)
	Net deferred tax liabilities		$	-			$	(589	)

	Reconciliation between the tax provision computed at the Federal statutory income tax rate of 34% and the Company’s actual effective income tax provision is as follows:

			Years Ended December 31,
			2014				2013			2012
	Computed at statutory rate			34	%			34	%		34	%
	State income taxes			1				3			2
	Stock compensation			(3	)			(6	)		(2	)
	Foreign tax			5				(1	)		(23	)
	Acquisition expenses and related impairment			-				(12	)		-
	Permanent items and other			(1	)			(4	)		4
	Valuation allowance			(35	)			(7	)		(13	)
	Total			1	%			7	%		2	%

	Realization of deferred tax assets is dependent upon future earnings, if any, the timing and amount of which are uncertain. Accordingly, the net deferred tax assets have been fully offset by a valuation allowance. The valuation allowance increased by $8.1 million and $1.8 million for the years ended December 31, 2014 and 2013, respectively.

	As of December 31, 2014, the Company had net operating loss carryforwards for federal income tax purposes of approximately $31.0 million which will begin to expire in 2021. The Company also has state net operating loss carryforwards of approximately $23.5 million which will begin to expire in 2015. The net operating loss carryforwards include $1.9 million which relates to stock option deductions that will be recognized through additional paid in capital when utilized. As such, these deductions are not reflected in deferred tax assets. The Company also has foreign net operating loss carryforwards of $3.6 million which will begin to expire in 2029. The Company also has Federal and California research and development tax credits of $0.4 million and $0.3 million, respectively. The federal research credits will begin to expire in 2022 while the California research credits have no expiration date.

	Utilization of the Company’s net operating loss carryforwards may be subject to substantial annual limitation due to the ownership change limitations provided by the Internal Revenue Code, and similar state provisions. Such an annual limitation could result in the expiration of the net operating loss carryforwards before utilization.

	The Company files income tax returns in the U.S., various state jurisdictions and in the countries of Sweden, Canada, Australia, Singapore, and Japan. As of December 31, 2014, the federal returns for the years ended 2011 through the current period and most state returns for the years ended 2010 through the current period are still open to examination. In addition, all of the net operating losses and research and development credit carryforwards that may be used in future years are still subject to adjustment. The Company is also subject to examinations in foreign jurisdictions for the years ended 2008 through the current period.

	The Company has indefinitely reinvested approximately $0.8 million of undistributed earnings of its foreign operations outside the U.S. as of December 31, 2014. No deferred tax liability has been recognized for the remittance of such earnings to the U.S. since it is the Company’s intention to utilize these earnings in these foreign jurisdictions. If these earnings were distributed, foreign tax credits may become available under current law to reduce or eliminate the resulting U.S. income tax liability.

The following table summarizes the activity related to unrecognized tax benefits (in thousands):

		2014				2013
Balance at January 1		$	196			$	193
Increase related to current year tax position			9				2
Increase related to tax position of prior year			8				1
Balance at December 31		$	213			$	196

As of December 31, 2014, the Company had a total of $0.2 million of net unrecognized tax benefits, none of which would affect the effective tax rate upon realization. The Company currently has a full valuation allowance against its U.S. net deferred tax assets which would impact the timing of the effective tax rate benefit should any of these uncertain tax positions be favorably settled in the future.

We recognize interest and penalties related to uncertain tax positions in income tax expense. As of December 31, 2014, we have no accrued interest or penalties related to uncertain tax positions. The Company does not anticipate that total unrecognized tax benefits will significantly change due to the settlement of audits and the expiration of statute of limitations prior to December 31, 2015.

Net_Income_Loss_Per_Share

Net Income (Loss) Per Share	12 Months Ended
Net Income (Loss) Per Share	Dec. 31, 2014
Net Income (Loss) Per Share [Abstract]
Net Income (Loss) Per Share	14	Net Income (Loss) Per Share

	Basic net income (loss) per share is computed by dividing net income (loss) by the weighted average number of common shares outstanding for the period. Diluted net income per share reflects the potential dilution that could occur from common shares issuable upon the exercise of outstanding stock options or warrants and the vesting of restricted stock awards, which are reflected in diluted earnings per share by application of the treasury stock method. Under the treasury stock method, the amount that the employee must pay for exercising stock options or warrants, the amount of stock-based compensation cost for future services that the Company has not yet recognized, and the amount of tax benefit that would be recorded in additional paid-in capital upon exercise are assumed to be used to repurchase shares.

	The following table sets forth the computation of basic and diluted net income (loss) per share and potential shares of common stock that are not included in the diluted net income (loss) per share calculation because their effect is antidilutive (in thousands, except per share amounts):

			Years Ended December 31,
			2014			2013			2012
	Numerator:
	Net income (loss)		$	(24,816	)	$	(16,284	)	$	5,331
	Denominator:
	Weighted average common shares - basic			20,450			20,091			17,842
	Dilutive effect of employee equity incentive plans			-			-			484
	Dilutive effect of warrants			-			-			11
	Weighted average common shares - diluted			20,450			20,091			18,337

	Net income (loss) per share:
	Basic		$	(1.21	)	$	(0.81	)	$	0.3
	Diluted		$	(1.21	)	$	(0.81	)	$	0.29

	Anti-dilutive securities:
	Options and restricted stock			1,349			1,186			301

Retirement_Plans

Retirement Plans	12 Months Ended
	Dec. 31, 2014
Retirement Plans [Abstract]
Retirement Plans	15	Retirement Plans

	The Company allows eligible employees to participate in a 401(k) defined-contribution retirement plan, which allows contributions on a pre-tax basis. Generally, all employees based in the U.S. are eligible to participate in the plan which allows voluntary contributions, subject to the annual maximum allowed by the U.S. Internal Revenue Service. The Company may contribute as much as determined by the Board of Directors. The Company made $0.2 million and $0.2 million matching contributions to the defined-contribution retirement plan for the years ended December 31, 2014 and 2013, respectively. The Company did not make any matching contributions for the year ended December 31, 2012.

Segment_Information_and_Revenu

Segment Information and Revenue by Geographic Region	12 Months Ended
Segment Information and Revenue by Geographic Region	Dec. 31, 2014
Segment Information and Revenue by Geographic Region [Abstract]
Segment Information and Revenue by Geographic Region	16	Segment Information and Revenue by Geographic Region

	The Company has one reportable operating segment representing the PacketLogic business. The Company’s CODM evaluates the performance of segments and makes decisions regarding allocation of resources based on certain metrics including segment revenue, gross profit and operating income (loss) measures before other income (expense), net and income taxes. Certain operating expenses, including stock-based compensation expenses, business development expenses, cost reduction efforts, acquisition-related intangible asset and impairment charges, and deferred compensation amortization are not allocated to segments. The CODM does not review asset information by segment.

	The following table presents information for the Company’s reportable segment (All Other represents the Company’s NAVL business; amounts in thousands):

			PacketLogic			All Other			Total
	Year ended December 31, 2014:
	Sales		$	71,028		$	4,385		$	75,413
	Gross profit			42,097			3,731			45,828
	Loss from operations		$	(3,522	)	$	(553	)	$	(4,075	)

	Year ended December 31, 2013:
	Sales		$	72,015		$	2,658		$	74,673
	Gross profit			40,088			2,205			42,293
	Loss from operations		$	(1,526	)	$	(2,448	)	$	(3,974	)

	The following table reconciles segment gross profit and segment operating loss to consolidated results (in thousands):

			Year Ended December 31,
			2014			2013

	Segment gross profit		$	45,828		$	42,293
	Unallocated amounts:
	Stock-based compensation			(390	)		(386	)
	Amortization of intangibles			(995	)		(1,094	)
	Cost reduction efforts			(237	)		-
	Consolidated gross profit			44,206			40,813

	Segment operating loss			(4,075	)		(3,974	)
	Unallocated amounts:
	Stock-based compensation			(5,198	)		(5,057	)
	Amortization of intangibles			(1,384	)		(1,566	)
	Cost reduction efforts			(1,134	)		-
	Impairment of goodwill and purchased intangible assets			(12,380	)		-
	Deferred compensation			(65	)		(5,809	)
	Business development expenses			(229	)		(1,616	)
	Consolidated operating loss		$	(24,465	)	$	(18,022	)

	The Company has one reportable operating segment. The Company’s Chief Operating Decision Maker, the Chief Executive Officer, evaluates the performance of the Company and makes decisions regarding allocation of resources based on total Company results.

	Sales for geographic regions were based upon the customer’s location. The following table presents net sales by geographic region (in thousands):

			Year Ended December 31,
			2014			2013			2012
	Total sales:
	Europe, Middle East and Africa		$	37,653		$	29,328		$	16,819
	Asia Pacific			15,665			15,954			13,751
	United States			13,053			17,273			19,622
	Canada and Latin America			9,042			12,118			9,435
	Total		$	75,413		$	74,673		$	59,627

	Property and equipment information is based on the physical location of the Company’s regional offices. The following table presents geographic information for property and equipment, net (in thousands):

			Year Ended December 31,
			2014			2013
	Property and equipment, net:
	United States		$	1,207		$	1,444
	Canada			2,811			1,019
	Europe			4,299			4,655
	Asia Pacific			5			3
	Total		$	8,322		$	7,121

	Sales made to customers located outside the United States as a percentage of total net revenues were 83%, 77% and 67% for the years ended December 31, 2014, 2013 and 2012, respectively.

For the year ended December 31, 2014, no single customer accounted for more than 10% of net revenues. For the year ended December 31, 2013, revenue from three customers, Shaw Communications, Inc., British Telecommunications plc and Itochu Techno-Solutions Corp. represented 13%, 12% and 10% of net revenues, respectively, with no other single customer accounting for more than 10% of net revenues. For the year ended December 31, 2012, revenue from one customer, Shaw Communications, Inc., represented 16% of net revenues, with no other single customer accounting for more than 10% of net revenues.

At December 31, 2014, accounts receivable from one customer represented 13% of total accounts receivable, with no other single customer accounting for more than 10% of the accounts receivable balance. At December 31, 2013, accounts receivable from one customer represented 32% of total accounts receivable, with no other single customer accounting for more than 10% of the accounts receivable balance. At December 31, 2014 and 2013, approximately 93% and 86%, respectively, of the Company’s total accounts receivable were due from customers outside the United States.

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events	17	Subsequent Events

	On February 13, 2015, the Company entered into a fifty-four month operating lease agreement to occupy two floors that total 4,499 square feet located in Malmö, Sweden. Base rent payments will begin in April 1, 2015 and the total estimated base rent payment over the life of the lease is approximately $400,000. In addition to the base rent payments, the Company will be obligated to pay its share of tax obligations.

Supplemental_Quarterly_Financi

Supplemental Quarterly Financial Data (unaudited)	12 Months Ended
Supplemental Quarterly Financial Data (unaudited)	Dec. 31, 2014
Supplemental Quarterly Financial Data (unaudited) [Abstract]
Supplemental Quarterly Financial Data (unaudited)	Supplemental Quarterly Financial Data (unaudited)

	The following is a summary of quarterly results of operations for the years ended December 31, 2014 and 2013 (in thousands, except per share data):

		Year Ended December 31, 2014
		31-Mar				30-Jun				September				December
		31-Mar				30-Jun				30				31

	Total sales		$	14,541			$	20,608			$	16,109			$	24,155
	Gross profit			8,384				11,743				10,217				13,862
	Income tax provision (benefit)			(147	)			25				(160	)			34
	Net loss			(5,976	)			(1,408	)			(15,712	)			(1,720	)
	Basic net loss per share (1)			(0.29	)			(0.07	)			(0.77	)			(0.08	)
	Diluted net loss per share (1)			(0.29	)			(0.07	)			(0.77	)			(0.08	)

		Year Ended December 31, 2013
		31-Mar				30-Jun				September				December
		31-Mar				30-Jun				30				31

	Total sales		$	14,171			$	17,839			$	21,333			$	21,330
	Gross profit			7,369				10,725				10,357				12,362
	Income tax provision (benefit)			(623	)			(860	)			(205	)			511
	Net loss			(6,717	)			(3,282	)			(2,983	)			(3,302	)
	Basic net loss per share (1)			(0.34	)			(0.16	)			(0.15	)			(0.16	)
	Diluted net loss per share (1)			(0.34	)			(0.16	)			(0.15	)			(0.16	)

	-1	Basic and diluted net loss per share is computed independently. Therefore, the sum of the quarterly net loss per share may not equal the total computed for the fiscal year or any cumulative interim period.

SCHEDULE_II_VALUATION_AND_QUAL

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Dec. 31, 2014
SCHEDULE II: VALUATION AND QUALIFYING ACCOUNTS [Abstract]
SCHEDULE II: VALUATION AND QUALIFYING ACCOUNTS	PROCERA NETWORKS, INC.
	SCHEDULE II: VALUATION AND QUALIFYING ACCOUNTS

	(in thousands)	Balance at			Additions			Deductions				Balance at
		Beginning			Charged to							End of Year
		of Year			Expense or
					Other
					Accounts
	Allowance for doubtful accounts:
	Year ended December 31, 2014		$	129		$	-		$	(82	)		$	47
	Year ended December 31, 2013			96			40			(7	)			129
	Year ended December 31, 2012			98			6			(8	)			96

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Summary of Significant Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation

	The consolidated financial statements include the accounts of Procera and its wholly owned subsidiaries. All significant intercompany balances and transactions have been eliminated. We have prepared the accompanying consolidated financial statements in accordance with accounting principles generally accepted in the United States of America and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”).

	During 2013, the Company identified immaterial errors in the consolidated financial statements for the year ended December 31, 2012, related to the recognition of revenue from a sale to a value added reseller, the accounting for inventory, and general and administrative fee accruals. Based on a quantitative and qualitative analysis of the errors as required by authoritative guidance, management concluded that the errors had no material impact on any of the Company’s previously issued financial statements, are immaterial to the Company’s results for the year ended December 31, 2013, and had no material effect on the trend of financial results.

	The consolidated financial statements for the year ended December 31, 2013 reflect the following immaterial adjustments related to prior periods: the reversal of $0.6 million in revenue and related gross margin of $0.4 million, inventory charges of $0.4 million, and additional general and administrative costs of $43,000.
Use of Estimates	Use of Estimates

	The preparation of consolidated financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosures of contingent assets and liabilities. Actual results could differ from those estimates. The accounting estimates that require management’s most significant and subjective judgments include the recognition of revenue, assessment of the recoverability of long-lived assets and goodwill, valuation of inventory, valuation and recognition of stock-based compensation, warranty estimates and accounting for income taxes.
Fair Value of Financial Instruments	Fair Value of Financial Instruments

	The carrying amounts of certain of the Company’s financial instruments, including cash and cash equivalents, short-term investments, accounts receivable, accounts payable and accrued liabilities approximate fair value due to their short maturities.
Concentration of Risk	Concentration of Risk

	The financial instruments utilized by the Company that potentially subject the Company to a concentration of credit risk consist of cash and cash equivalents, short-term investments and accounts receivable. Cash and cash equivalents are deposited in demand and money market accounts in major financial institutions in the United States, Sweden, Canada and Australia. Accounts at financial institutions in the United States are guaranteed by the Federal Deposit Insurance Corporation (“FDIC”) up to certain limits. At times, the Company’s deposits or investments may exceed federally insured limits. At December 31, 2014 and 2013, the Company had approximately $17.7 million and $90.5 million, respectively, at financial institutions in excess of FDIC insured limits. The Company has not experienced any losses in such accounts.

	The Company’s investment policies limit investments to those that are low risk and restrict placement of these investments to issuers evaluated as creditworthy. As of December 31, 2014, the Company’s investments were composed of money market funds, U.S. agency securities, certificates of deposit, commercial paper and corporate bonds. As of December 31, 2013, the Company’s investments were composed of commercial paper and money market funds.

	The Company’s sales have at times been concentrated with certain large customers. The Company also sells to a geographically diverse base of customers. For the year ended December 31, 2014, no single customer accounted for more than 10% of net revenues. For the year ended December 31, 2013, revenue from three customers, Shaw Communications, Inc., British Telecommunications plc and Itochu Techno-Solutions Corp. represented 13%, 12% and 10% of net revenues, respectively, with no other single customer accounting for more than 10% of net revenues. For the year ended December 31, 2012, revenue from one customer, Shaw Communications, Inc., represented 16% of net revenues. At December 31, 2014, accounts receivable from one customer represented 13% of total accounts receivable with no other single customer accounting for more than 10% of the accounts receivable balance, and 84% of accounts receivable were due from customers outside of the United States. At December 31, 2013, one customer represented 32% of total accounts receivable, and 86% of accounts receivable were due from customers outside of the United States (see Note 16). The Company maintains an allowance for uncollectible accounts receivable based upon expected collectability of all accounts receivable. The Company performs ongoing credit evaluations of certain customers’ financial condition and generally requires no collateral from its customers.

	The Company is dependent on a limited number of third-party suppliers for its hardware equipment. The Company is dependent on the ability of these suppliers to provide products on a timely basis and on favorable pricing terms. The loss of certain principal suppliers or a significant reduction in product availability from principal suppliers could have a material adverse effect on the Company. The Company believes that its relationships with its suppliers are satisfactory, and the Company has not historically experienced inadequate supply issues from its suppliers.
Cash and Cash Equivalents	Cash and Cash Equivalents

	The Company considers all highly liquid investments with original or remaining maturities of three months or less from the date of purchase to be cash equivalents.
Investments	Investments

	The goals of the Company’s investment policy are preservation of capital and maintenance of liquidity. The Company invests in instruments that are of high credit quality, primarily rated AA+/Aa1, and have a maturity of up to 24 months. However, the weighted average maturity of the portfolio does not exceed 12 months. Investments that have a remaining maturity of greater than three months at the date of purchase and an effective maturity of less than one year are classified as short-term investments.

	Investments are carried at fair value based upon quoted market prices at the end of the reporting period. As of each of December 31, 2014 and 2013, all investments were classified as available-for-sale with unrealized gains and losses recorded as a separate component of comprehensive income. The specific identification method is used to determine the cost of securities disposed of, with realized gains and losses reflected in interest and other income (expense).

	The Company reviews its investments for impairment on a quarterly basis. For investments with an unrealized loss, the factors considered in the review include the credit quality of the issuer, the duration that the fair value has been less than the adjusted cost basis, severity of impairment, reason for the decline in value and potential recovery period, the financial condition and near-term prospects of the investees, and whether the Company would be required to sell an investment due to liquidity or contractual reasons before its anticipated recovery.
Accounts Receivable and Allowance for Doubtful Accounts	Accounts Receivables and Allowance for Doubtful Accounts

	Trade accounts receivable are recorded at the invoiced amount. The Company maintains an allowance for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments. The Company considers factors such as historical experience, credit quality, age of the accounts receivable balances, geographic or country-specific risks and economic conditions that may affect a customer’s ability to pay. The allowance for doubtful accounts is reviewed regularly and adjusted if necessary based on management’s assessment of a customer’s ability to pay. Individual accounts receivable are written off when all collection efforts have been exhausted.
Inventories	Inventories

	Inventories consist primarily of finished goods and are stated at the lower of cost (on a specific identification or weighted average cost basis) or market. The Company records inventory write-downs for excess and obsolete inventories based on historical usage and forecasted demand, as well as determining what inventory, if any, is not saleable. Factors which could cause its forecasted demand to prove inaccurate include the Company’s reliance on indirect sales channels and the variability of its sales cycle; the potential of announcements of new products or enhancements to replace or shorten the life cycle of current products, or cause customers to defer their purchases; and the potential of new or alternative technologies achieving widespread market acceptance and thereby rendering the Company’s existing products obsolete. If future demand or market conditions are less favorable than projections, additional inventory write-downs may be required and would be reflected in cost of sales in the period the revision is made.

	Inventories also include demonstration units located at various customer locations and customer service inventories. The demonstration units and customer service inventories are stated at lower of cost (on a specific identification or weighted average cost basis) or market. The Company provides demonstration units to customers who evaluate the Company's products, and upon a successful trial, may purchase such products. The Company carries customer service inventories because it generally provides product warranty for 12 months and earn revenue by providing enhanced and extended support contracts during and beyond this warranty period. Customer service inventories are provided for customer use permanently or on a temporary basis while the defective unit is being repaired. The Company reduces the carrying value of demonstration units and customer service inventories for differences between cost and estimated net realizable value, taking into consideration expected demand, technological obsolescence and other information including the physical condition of the unit. If actual results vary significantly from expectations, additional write-downs may be required, resulting in additional charges to operations.
Property and Equipment	Property and Equipment

	Property and equipment are stated at cost, less accumulated depreciation and amortization. Depreciation is calculated using the straight-line method over the estimated useful lives of the assets. Leasehold improvements are amortized using the straight-line method over the estimated useful lives of the improvements or the term of the lease, whichever is shorter. Whenever assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts, and any resulting gain or loss is recognized in income for the period. The cost of maintenance and repairs is expensed as incurred; significant improvements are capitalized.

	The estimated service lives of property and equipment are principally as follows:

	Leasehold improvements	Lesser of useful life or lease term
	Machinery, office and computer equipment	2–5 years
	Computer software	3 years
	Transportation vehicles	3–5 years
Goodwill	Goodwill

	Goodwill has been measured as the excess of the cost of acquisition over the amount assigned to tangible and identifiable intangible assets acquired less liabilities assumed. The Company reviews goodwill for impairment annually during the fourth quarter of the year or more frequently if an event or circumstance indicates that an impairment loss has occurred. The identification and measurement of goodwill impairment involves the estimation of fair value at the Company’s reporting unit level.

	Goodwill impairment is determined using a two-step process. The first step of the goodwill impairment test is used to identify potential impairment by comparing the fair value of a reporting unit with its carrying amount, including goodwill. If the fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is considered not impaired and the second step of the impairment test is unnecessary. If the carrying amount of a reporting unit exceeds its fair value, the second step of the goodwill impairment test is performed to measure the amount of impairment loss, if any.

	The second step of the goodwill impairment test compares the implied fair value of the reporting unit’s goodwill with the carrying amount of that goodwill. If the carrying amount of the reporting unit’s goodwill exceeds the implied fair value of that goodwill, an impairment loss is recognized in an amount equal to that excess. The implied fair value of goodwill is determined in the same manner as the amount of goodwill recognized in a business combination. That is, the fair value of the reporting unit’s assets and liabilities (including any unrecognized intangible assets) are determined as if the reporting unit had been acquired in a business combination and the fair value of the reporting unit was the purchase price paid to acquire the reporting unit.
Accounting for long-lived assets	Accounting for long-lived assets

	The Company reviews its long-lived assets, including property and equipment and purchased intangible assets, for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Examples of such events could include a significant disposal of a portion of such assets, an adverse change in the market involving the business employing the related asset, a significant decrease in the benefits realized from an acquired business, difficulties or delays in integrating the business or a significant change in the operation or use of an asset or acquired business.

	An impairment test involves a comparison of undiscounted cash flows from the use of the asset or asset group to the carrying value of the asset or asset group. Measurement of an impairment loss is based on the amount by which the carrying value of the asset or asset group exceeds its fair value.
Product Warranty	Product Warranty

	The Company warrants its products against material defects for a specific period of time, generally 12 months. The Company provides for the estimated future costs of warranty obligations in cost of sales when the related revenue is recognized. The accrued warranty costs represent the best estimate at the time of sale of the total costs that the Company expects to incur to repair or replace product parts, which fail while still under warranty. The amount of accrued estimated warranty costs are primarily based on current information on repair costs. The Company assesses the adequacy of the recorded warranty obligation quarterly and makes adjustments to the obligation based on actual experience and changes in estimated future rates of return.
Commitments and Contingencies	Commitments and Contingencies

	Certain conditions may exist on the date the financial statements are issued, which may result in a loss to the Company but which will only be resolved when one or more future events occur or fail to occur. The Company’s management and its legal counsel assess such contingent liabilities, and such assessment inherently involves an exercise of judgment. In assessing loss contingencies related to legal proceedings that are pending against the Company or unasserted claims that may result in such proceedings, the Company and its legal counsel evaluate the perceived merits of any legal proceedings or unasserted claims as well as the perceived merits of the amount of relief sought or expected to be sought therein.

	If the assessment of a contingency indicates that it is probable that a material loss has been incurred and the amount of the liability can be estimated, then the estimated liability would be accrued in the Company’s financial statements. If the assessment indicates that a potentially material loss contingency is not probable, but is reasonably possible, or is probable but cannot be estimated, then the nature of the contingent liability, together with an estimate of the range of possible loss if determinable and material, would be disclosed.

	Loss contingencies considered remote are generally not disclosed unless they involve guarantees, in which case the nature of the guarantee would be disclosed.
Stock-Based Compensation	Stock-Based Compensation

	The Company accounts for all share-based payment transactions using a fair-value based measurement method. The Company calculates stock option-based compensation by estimating the fair value of each option as of its date of grant using the Black-Scholes option pricing model. The fair value of restricted stock and restricted stock unit grants is calculated based upon the closing stock price of the Company’s common stock on the date of the grant. These amounts are expensed over the requisite service period of each award, which is the vesting period, using the straight-line attribution method. Compensation expense is recognized only for those awards that are expected to vest, and, as such, amounts have been reduced by estimated forfeitures. The Company has historically issued stock options, restricted stock units and vested and nonvested stock grants to employees and outside directors whose only condition for vesting has been continued employment or service during the related vesting or restriction period.
Revenue Recognition	Revenue Recognition

	The Company recognizes product revenue when all of the following have occurred: (1) the Company has entered into a legally binding arrangement with a customer resulting in the existence of persuasive evidence of an arrangement; (2) delivery has occurred, evidenced when product title transfers to the customer; (3) customer payment is deemed fixed or determinable and free of contingencies and significant uncertainties; and (4) collection is probable.

	Sales of the Company’s PacketLogic products typically involve the integration of software and a hardware appliance, where the hardware and software work together to deliver the essential functionality of the product. Product revenue consists of revenue from sales of appliances and software licenses. PacketLogic product sales include a perpetual license to the Company’s software that is essential to the functionality of the hardware, and on occasion include licenses to additional software. Network Application Visibility Library (“NAVL”) sales include term licenses sold as a subscription. Revenue from sales of term licenses is recognized ratably over the subscription term, generally one year. Shipping charges billed to customers are included in product revenue and the related shipping costs are included in cost of product revenue. Virtually all sales include post-contract support (“PCS”) services (included in support revenue), which consist of software updates and customer support. Software updates provide customers access to a growing library of electronic Internet traffic identifiers (signatures) and rights to non-specific software product upgrades, maintenance releases and patches released during the term of the support period. Support includes Internet access to technical content, telephone and Internet access to technical support personnel and hardware support.

	Receipt of a customer purchase order is the primary method of determining that persuasive evidence of an arrangement exists.

	Delivery of PacketLogic products generally occurs when a product is delivered to a common carrier F.O.B. shipping point. However, product revenue based on channel partner purchase orders is recorded based on obtaining evidence of sell-through to the end user customers until such time as the Company has established significant experience with the channel partner’s ability to complete the sales process, which requires judgment. Additionally, when the Company introduces new products for which there is no historical evidence of acceptance history, revenue is recognized on the basis of end-user acceptance until such history has been established. Delivery of Packetlogic license upgrades and NAVL licenses occur when such licenses are made available to customers.

	Fees are typically considered to be fixed or determinable at the inception of an arrangement, generally based on specific products and quantities to be delivered. The Company’s contracts do not generally include rights of return or acceptance provisions. To the extent that agreements contain such terms, the Company recognizes revenue once the acceptance provisions or right of return lapses. Payment terms to customers generally range from net 30 to 90 days. Certain customers are occasionally granted longer terms based on the Company’s assessment of their credit risk. In the event payment terms are provided that differ from the Company’s standard business practices, the fees are deemed to not be fixed or determinable and revenue is recognized when the payments become due, provided the remaining criteria for revenue recognition have been met.

	The Company assesses the ability to collect from its customers based on a number of factors, including credit worthiness of the customer and past transaction history of the customer. If the customer is not deemed credit worthy, the Company defers revenue from the arrangement until payment is received and all other revenue recognition criteria have been met.

	Customer orders normally contain multiple items. The initial PacketLogic product delivery consists of the hardware and software elements, and these elements have standalone value to the customer. Through the year ended December 31, 2014, the elements that remained undelivered at the time of product delivery were PCS services and occasionally uncompleted professional services not essential to the functionality of the product. Orders for the NAVL products consist of term software licenses and PCS services which are recognized ratably over the term of the arrangement, typically one year.

	Under the revenue recognition guidance discussed in the first paragraph above, the Company allocates revenue to each element in an arrangement based on relative selling price using a selling price hierarchy. The selling price for a deliverable is based on its VSOE, if available, third party evidence (“TPE”), if VSOE is not available, or the Company’s best estimate of selling price (“ESP”), if neither VSOE nor TPE is available. The maximum revenue recognized on a delivered element is limited to the amount that is not contingent upon the delivery of additional items. In arrangements that include NAVL or non-essential software (“software deliverables”), revenue is allocated to each separate unit of accounting for the non-software deliverables and to the software deliverables as a group using the relative selling prices of each of the deliverables in the arrangement. Revenue allocated to the software deliverables as a group is then allocated first to the PCS services based on VSOE, and then to the software, using the residual method under the software revenue recognition guidance.

	The Company determines VSOE for PCS based on a percentage of products purchased, with different rated based on service level. The Company has determined that these rates represent VSOE for PCS based on its history of charging these rates for PCS to customers upon renewal. The Company has a history of such renewals, the vast majority of which are at the VSOE rate on a customer basis. PCS revenue is recognized ratably over the life of the contract. A portion of service revenue is derived from customization not essential to the functionality of the product, implementation and training services. The Company uses the completed-contract method to recognize such revenue.

	As the PacketLogic hardware and software products are rarely sold separately, the Company generally does not have VSOE for these products, and TPE is not available. The Company determines the ESP for these hardware and software deliverables considering internal factors such as discounting and pricing policies, and external factors such as market conditions in different geographies and competitive positioning.

	In certain contracts, billing terms may be agreed upon based on performance milestones such as the execution of a measurement test, a partial delivery or the completion of a specified service. Payments received before the unconditional acceptance of a specific set of deliverables are recorded as deferred revenue until the conditional acceptance has been waived.
Income Taxes	Income Taxes

	The Company accounts for income taxes under an asset and liability approach. This process involves calculating the temporary and permanent differences between the carrying amounts of the assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The temporary differences result in deferred tax assets and liabilities, which are recorded on the Company’s consolidated balance sheets. The Company must assess the likelihood that its deferred tax assets will be recovered from future taxable income and, to the extent the Company believes that recovery is not likely, the Company must establish a valuation allowance. Changes in the Company’s valuation allowance in a period are recorded through the income tax provision on the consolidated statements of operations. The impact of an uncertain income tax position on the income tax return is recognized at the largest amount that is more-likely-than-not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained.
Shipping and Handling Costs	Shipping and Handling Costs

	The Company includes shipping and handling costs associated with inbound and outbound freight in costs of goods sold.
Research and Development	Research and Development

	Research and development expenses include internal and external costs. Internal costs include salaries and employment related expenses, prototype materials, initial product certifications, equipment costs and allocated facility costs. External expenses consist of costs associated with outsourced software development activities.

	Development costs incurred in the research and development of new products, other than software, and enhancements to existing products are expensed as incurred. Costs for the development of new software products and enhancements to existing products are expensed as incurred until technological feasibility has been established, at which time any additional development costs would be capitalized. To date, the Company’s software has been available for general release shortly after being determined to be technologically feasible, which the Company defines as a working prototype. Accordingly, those costs have not been material.
Advertising Costs	Advertising Costs

	Advertising expenses consist primarily of costs incurred in the design, development and printing of Company literature and marketing materials. Advertising costs are expensed as incurred. Advertising expenses were not significant for the years ended December 31, 2014, 2013 and 2012.
Comprehensive Income (Loss)	Comprehensive Income (Loss)

	Comprehensive income (loss) consists of net income or loss and other gains and losses affecting stockholders’ equity that, under generally accepted accounting principles, are excluded from net income or loss. For the Company, such items consist of unrealized gains and losses on available-for-sale short-term investments and foreign currency translation gains and losses.
Foreign Operations	Foreign Operations

	The accompanying balance sheets contain certain recorded Company assets in foreign countries, primarily Sweden, Canada and Australia. Although these countries are considered economically stable and the Company has experienced no notable burden from foreign exchange transactions, export duties or government regulations, it is always possible that unanticipated events in foreign countries could have a material adverse effect on the Company’s operations.
Foreign Currency Translation	Foreign Currency Translation

	The functional currency of the Company’s foreign subsidiaries is the local currency. The revenue and expenses of such subsidiaries have been translated into U.S. dollars at average exchange rates prevailing during the period. Assets and liabilities have been translated at the rates of exchange on the balance sheet date. The resulting cumulative translation adjustments are reported in comprehensive income (loss). Currency transaction gains and losses are recognized in current operations.
Business Segments	Business Segments

	The Company has one reportable operating segment. The Company's Chief Operating Decision Maker ("CODM"), the Chief Executive Officer, evaluates performance and makes decisions regarding allocation of resources based on certain metrics including segment revenue, gross profit and operating income (loss) measures (see Note 16).

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Summary of Significant Accounting Policies [Abstract]
The Estimated Service Lives of Property and Equipment	The estimated service lives of property and equipment are principally as follows:

	Leasehold improvements	Lesser of useful life or lease term
	Machinery, office and computer equipment	2–5 years
	Computer software	3 years
	Transportation vehicles	3–5 years

Cash_Equivalents_and_Shortterm1

Cash Equivalents and Short-term Investments (Tables)	12 Months Ended
Cash Equivalents and Short-term Investments (Tables)	Dec. 31, 2014
Cash Equivalents And Short Term Investments [Abstract]
Summary of Cash Equivalents and Short-term Investments by type of Instrument	The Company’s cash equivalents and short-term investments at December 31, 2014 are as follows (in thousands):

		Amortized		Gross		Gross			Fair
		Cost		Unrealized		Unrealized			Value
				Gains		Losses
	Money market funds	$	109	$	-	$	-		$	109
	Commercial paper		10,794		2		-			10,796
	Treasury and agency notes and bills		54,442		5		(6	)		54,441
	Corporate bonds		25,419		2		(16	)		25,405
	Total investments	$	90,764	$	9	$	(22	)	$	90,751

	Reported as:
	Cash equivalents	$	6,208	$	1	$	-		$	6,209
	Short-term investments		84,556		8		(22	)		84,542
	Total	$	90,764	$	9	$	(22	)	$	90,751

	The Company’s cash equivalents and short-term investments at December 31, 2013 are as follows (in thousands):

		Amortized		Gross		Gross			Fair
		Cost		Unrealized		Unrealized			Value
				Gains		Losses
	Money market funds	$	79,869	$	-	$	-		$	79,869
	Commercial paper		15,776		13		-			15,789
	Total investments	$	95,645	$	13	$	-		$	95,658

	Reported as:
	Cash equivalents	$	79,869	$	-	$	-		$	79,869
	Short-term investments		15,776		13		-			15,789
	Total	$	95,645	$	13	$	-		$	95,658

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
Fair Value Measurements (Tables)	Dec. 31, 2014
Fair Value Measurements [Abstract]
Summary of Fair Value Hierarchy for its Financial Assets Measured at Fair Value on a Recurring Basis	The following tables represent the Company’s fair value hierarchy for its financial assets as of December 31, 2014 measured at fair value on a recurring basis (in thousands):

		Level 1		Level 2		Level 3		Total
	Money market funds	$	109	$	-	$	-	$	109
	Commercial paper		-		10,796		-		10,796
	Treasury and agency notes and bills		-		54,442		-		54,442
	Corporate bonds		-		25,404		-		25,404
	Total assets measured at fair value	$	109	$	90,642	$	-	$	90,751

	The following tables represent the Company’s fair value hierarchy for its financial assets as of December 31, 2013 measured at fair value on a recurring basis (in thousands):

		Level 1		Level 2		Level 3		Total
	Money market funds	$	79,869	$	-	$	-	$	79,869
	Commercial paper		-		15,789		-		15,789
	Total assets measured at fair value	$	79,869	$	15,789	$	-	$	95,658

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
Acquisitions (Tables)	Dec. 31, 2014
Acquisitions [Abstract]
Net Assets and Liabilities Acquired	The following table summarizes the net assets and liabilities acquired, including identifiable intangible assets, based on their respective fair values at the acquisition date (in thousands):

	Assets acquired
	Cash		$	822
	Accounts receivable, net			525
	Other current assets			2,095
	Identifiable intangible assets			8,460
	Goodwill (1)			12,346
	Other assets			303
	Total assets acquired			24,551
	Liabilities assumed
	Accounts payable and other accrued liabilities			420
	Deferred revenue			555
	Notes payable			511
	Deferred tax liability			2,141
	Total liabilities assumed			3,627
	Net assets acquired		$	20,924

	-1	The Company made an election under Section 338(g) of the Internal Revenue Code of 1986, as amended, which resulted in tax-deductible goodwill related to the Vineyard transaction. The Company estimated that the tax-deductible goodwill and intangibles resulting from the election will approximate $17.6 million, to be amortized for U.S. tax purposes over a 15 year period that began on January 1, 2014.
Intangible Assets Acquired	The following table presents details of the intangible assets acquired in connection with the acquisition of Vineyard, which was completed during the first quarter of 2013 (in thousands, except years):

			Estimated Useful			Amount
			Life
			(in years)
	Developed technology			5		$	5,910
	Customer relationships			5			2,550
	Total					$	8,460
Pro Forma Information	The pro forma results are for illustrative purposes only for the applicable period and do not purport to be indicative of the actual results that would have occurred had the transactions been completed as of the beginning of the period, nor are they indicative of results of operations that may occur in the future (in thousands, except per share amounts):

			December 31,
			2013			2012
	Pro forma revenues		$	75,738		$	61,535
	Pro forma net loss			(7,827	)		(3,718	)
	Basic and diluted loss per share			(0.39	)		(0.20	)




Pro Forma Adjustments	These adjustments are as follows (in thousands):

			December 31,
			2013			2012
	Acquisition-related expenses for Vineyard		$	(1,026	)	$	-
	Intangible amortization			36			1,661
	Net change in stock compensation expense			(636	)		1,727
	Increase (decrease) in deferred compensation expense			(5,809	)		5,874
	Increase in weighted average common shares outstanding for shares issued and not already included in the weighted average common shares outstanding			165			518

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	12 Months Ended
Goodwill and Intangible Assets (Tables)	Dec. 31, 2014
Goodwill and Intangible Assets [Abstract]
Changes in the Carrying Value of Goodwill	Changes in the carrying value of goodwill for the twelve months ended December 31, 2014 were as follows (in thousands):

		Year Ended
		December 31,
		2014
	Balance, December 31, 2013	$	12,326
	Impairment of goodwill		(10,840	)
	Translation adjustments		(526	)
	Balance, December 31, 2014	$	960
Acquired Intangible Assets	The following table is a summary of acquired intangible assets with remaining net book values at December 31, 2014 (in thousands, except weighted average remaining life):

		Gross			Accumulated			Net			Weighted
		Carrying			Amortization			Carrying			Average
		Value						Value			Remaining Life
	Developed technology	$	4,323		$	(1,927	)	$	2,396			3.02
	Customer relationships		1,354			(793	)		561			3.02
	Balance at December 31, 2014	$	5,677		$	(2,720	)	$	2,957

	The following table is a summary of acquired intangible assets with remaining net book values at December 31, 2013 (in thousands, except weighted average remaining life):

		Gross			Accumulated			Net			Weighted
		Carrying			Amortization			Carrying			Average
		Value						Value			Remaining Life
	Developed technology	$	5,446		$	(1,066	)	$	4,380			4.01
	Customer relationships		2,350			(460	)		1,890			4.01
	Balance at December 31, 2013	$	7,796		$	(1,526	)	$	6,270
Carrying Value of Acquired Intangible Assets	The changes in the carrying value of acquired intangible assets during the year ended December 31, 2014 were as follows (in thousands):

		Gross			Accumulated			Net
		Carrying			Amortization			Carrying
		Value						Value
	Balance at December 31, 2013	$	7,796		$	(1,526	)	$	6,270
	Impairment of intangible assets		(1,540	)		—			(1,540	)
	Additions		—			(1,384	)		(1,384	)
	Translation adjustments		(579	)		190			(389	)
	Balance at December 31, 2014	$	5,677		$	(2,720	)	$	2,957
Finite-Lived Intangible Assets, Future Amortization Expense	The following table presents the estimated future amortization of intangible assets as of December 31, 2014 (in thousands):

	Fiscal Year	Amortization
	2015	$	979
	2016		979
	2017		979
	2018		20
	Total	$	2,957

Balance_Sheet_Details_Tables

Balance Sheet Details (Tables)	12 Months Ended
Balance Sheet Details (Tables)	Dec. 31, 2014
Balance Sheet Details [Abstract]
Inventories	Inventories are stated at the lower of cost (on a specific identification or weighted average cost basis), or market. Inventories at December 31, 2014 and 2013 consisted of the following (in thousands):

		December 31,
			2014			2013
	Finished goods	$	14,638		$	18,617
	Raw materials		199			219
	Inventories, net	$	14,837		$	18,836
Summary of Property and Equipment	The following is a summary of property and equipment as of December 31, 2014 and 2013 (in thousands):

		December 31,
		2014			2013
	Machinery and equipment	$	10,787		$	9,343
	Computer equipment		563			488
	Office furniture and equipment		581			387
	Leasehold improvements		1,894			539
	Software		274			326
	Accumulated depreciation		(5,777	)		(3,962	)
	Property and equipment, net	$	8,322		$	7,121
Accrued Liabilities	Accrued liabilities at December 31, 2014 and 2013 consisted of the following (in thousands):

		December 31,
		2014			2013
	Payroll and related	$	3,398		$	3,179
	Sales commissions		1,778			1,608
	Warranty		113			131
	Audit and legal services		231			198
	Other		1,715			1,605
	Total accrued liabilities	$	7,235		$	6,721
Warranty Reserve	Changes in the warranty reserve during the years ended December 31, 2014 and 2013 were as follows (in thousands):

		December 31,
		2014			2013
	Warranty accrual, beginning of period	$	131		$	406
	Provision for current period sales		140			58
	Change in liability for pre-existing warranties		(60	)		(115	)
	Deductions for warranty claims processed during the period		(98	)		(218	)
	Warranty accrual, end of period	$	113		$	131
Components of Accumulated Other Comprehensive Loss	The components of accumulated other comprehensive loss were as follows (in thousands):

		December 31,
		2014			2013
	Accumulated net unrealized gain (loss) on short-term investments	$	(13	)	$	13
	Accumulated foreign currency translation adjustments		(3,177	)		(1,910	)
	Accumulated other comprehensive loss	$	(3,190	)	$	(1,897	)

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
Commitments and Contingencies (Tables)	Dec. 31, 2014
Commitments and Contingencies [Abstract]
Schedule of Future Minimum Rental Payments for Operating Leases	As of December 31, 2014, future minimum lease payments due under operating leases were as follows (in thousands):

	Years ending December 31,
	2015	$	1,016
	2016		896
	2017		666
	2018		411
	2019		237
	Beyond		1,145
	Total minimum lease payments	$	4,371

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	12 Months Ended
Stockholders' Equity (Tables)	Dec. 31, 2014
Stockholders' Equity [Abstract]
Summary of Stock Option Activity	The following table summarizes the Company’s stock option activity (in thousands, except per share data):

		Years Ended December 31,
		2014						2013					2012
		Options			Weighted			Options			Weighted		Options			Weighted
					Average						Average					Average
					Exercise						Exercise					Exercise
					Price						Price					Price
	Outstanding at the beginning of the year		1,824		$	15.07			1,332		$	14.93		1,198		$	10.35
	Granted		281			9.24			941			15.64		629			20.64
	Exercised		(62	)		5.67			(82	)		7.36		(372	)		10.24
	Cancelled		(398	)		14.71			(367	)		18.3		(123	)		14.67
	Outstanding at the end of the year		1,645		$	14.71			1,824		$	15.07		1,332		$	14.93
	Vested and expected to vest at the end of the year		1,549		$	14.78			1,702		$	14.98		1,254		$	14.66
	Exercisable at the end of the year		919		$	14.72			674		$	12.59		618		$	11.58
Summary of Restricted Stock Awards Activity	The following is a summary of the Company’s restricted stock and restricted stock unit activity (in thousands, except per share data):

		Years Ended December 31,
		2014						2013					2012
		Awards			Weighted			Awards			Weighted		Awards			Weighted
					Average						Average					Average
					Grant Date						Grant Date					Grant Date
					Fair Value						Fair Value					Fair Value
	Unvested outstanding at the beginning of the year		302		$	16.63			253		$	15.79		136		$	9.24
	Granted		473			9.35			159			14.5		152			20.32
	Vested		(136	)		15.24			(109	)		11.52		(35	)		10.04
	Forfeited		(53	)		11.16			(1	)		20.25		-			-
	Unvested outstanding at the end of the year		586		$	11.58			302		$	16.63		253		$	15.79
Summary of Employee Stock-based Compensation Expense	Stock-based employee compensation expense recognized pursuant to the Company’s stock incentive plans on the accompanying consolidated statements of operations is as follows (in thousands):

		Years Ended December 31,
		2014			2013			2012
	Cost of goods sold	$	390		$	386		$	150
	Research and development		1,427			1,225			322
	Sales and marketing		1,525			1,682			1,175
	General and administrative		1,856			1,764			1,137
	Total stock-based compensation expense	$	5,198		$	5,057		$	2,784
Stock-based Compensation, Valuation Assumptions	The following assumptions were used in determining the fair value of stock options granted during the years ended December 31, 2014, 2013 and 2012:

		Years Ended December 31,
		2014			2013			2012
	Expected term (in years)		5.05			4.89			4.55
	Expected volatility		64	%		76	%		78	%
	Risk-free interest rate		1.57	%		1.09	%		0.65	%
	Dividend yield		-	%		-	%		-	%

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2014
Income Taxes [Abstract]
Schedule of Components of Income (Loss) Before Income Taxes	The components of income (loss) before income taxes are as follows (in thousands):

		Years Ended December 31,
		2014			2013			2012
	Domestic	$	(11,610	)	$	(13,287	)	$	1,761
	Foreign		(13,454	)		(4,174	)		3,693
	Income (loss) before income taxes	$	(25,064	)	$	(17,461	)	$	5,454
Schedule of Income Tax Provision (Benefit)	The Company’s income tax provision (benefit) consists of the following (in thousands):

		Years Ended December 31,
		2014			2013			2012
	Current income taxes:
	Federal	$	-		$	-		$	-
	State		10			(7	)		60
	Foreign		319			237			63
	Total current income taxes		329			230			123

	Deferred income taxes:
	Foreign		(577	)		(1,407	)		-
	Total deferred income taxes		(577	)		(1,407	)		-
	Income tax provision (benefit)	$	(248	)	$	(1,177	)	$	123
Schedule of Components of Deferred Tax Assets and Liabilities	Significant components of the Company’s deferred tax assets are as follows (in thousands):

		December 31,
	Deferred tax assets:	2014			2013
	Federal, state and foreign net operating losses	$	12,110		$	10,508
	Research and other tax credits		1,703			1,122
	Stock-based compensation expense		1,444			1,236
	Goodwill and intangibles		4,759			-
	Other		3,347			2,634
	Valuation allowance		(22,492	)		(14,399	)
	Total deferred tax assets		871			1,101

	Deferred tax liabilities:
	Intangible assets and others		(871	)		(1,690	)
	Net deferred tax liabilities	$	-		$	(589	)
Schedule of Effective Income Tax Provision	Reconciliation between the tax provision computed at the Federal statutory income tax rate of 34% and the Company’s actual effective income tax provision is as follows:

		Years Ended December 31,
		2014			2013			2012
	Computed at statutory rate		34	%		34	%		34	%
	State income taxes		1			3			2
	Stock compensation		(3	)		(6	)		(2	)
	Foreign tax		5			(1	)		(23	)
	Acquisition expenses and related impairment		-			(12	)		-
	Permanent items and other		(1	)		(4	)		4
	Valuation allowance		(35	)		(7	)		(13	)
	Total		1	%		7	%		2	%
Schedule of Activity Related to Unrecognized Tax Benefits	The following table summarizes the activity related to unrecognized tax benefits (in thousands):

		2014			2013
	Balance at January 1	$	196		$	193
	Increase related to current year tax position		9			2
	Increase related to tax position of prior year		8			1
	Balance at December 31	$	213		$	196

Net_Income_Loss_Per_Share_Tabl

Net Income (Loss) Per Share (Tables)	12 Months Ended
Net Income (Loss) Per Share (Tables)	Dec. 31, 2014
Net Income (Loss) Per Share [Abstract]
Computation of Basic and Diluted Net Income (Loss) Per Share	The following table sets forth the computation of basic and diluted net income (loss) per share and potential shares of common stock that are not included in the diluted net income (loss) per share calculation because their effect is antidilutive (in thousands, except per share amounts):

		Years Ended December 31,
		2014			2013			2012
	Numerator:
	Net income (loss)	$	(24,816	)	$	(16,284	)	$	5,331
	Denominator:
	Weighted average common shares - basic		20,450			20,091			17,842
	Dilutive effect of employee equity incentive plans		-			-			484
	Dilutive effect of warrants		-			-			11
	Weighted average common shares - diluted		20,450			20,091			18,337

	Net income (loss) per share:
	Basic	$	(1.21	)	$	(0.81	)	$	0.3
	Diluted	$	(1.21	)	$	(0.81	)	$	0.29

	Anti-dilutive securities:
	Options and restricted stock		1,349			1,186			301

Segment_Information_and_Revenu1

Segment Information and Revenue by Geographic Region (Tables)	12 Months Ended
	Dec. 31, 2014
Segment Information and Revenue by Geographic Region [Abstract]
Schedule of segment reporting information, by segment	The following table presents information for the Company’s reportable segment (All Other represents the Company’s NAVL business; amounts in thousands):

		PacketLogic			All Other			Total
	Year ended December 31, 2014:
	Sales	$	71,028		$	4,385		$	75,413
	Gross profit		42,097			3,731			45,828
	Loss from operations	$	(3,522	)	$	(553	)	$	(4,075	)

	Year ended December 31, 2013:
	Sales	$	72,015		$	2,658		$	74,673
	Gross profit		40,088			2,205			42,293
	Loss from operations	$	(1,526	)	$	(2,448	)	$	(3,974	)
Reconciliation of operating profit loss from segments to consolidated	The following table reconciles segment gross profit and segment operating loss to consolidated results (in thousands):

		Year Ended December 31,
		2014			2013

	Segment gross profit	$	45,828		$	42,293
	Unallocated amounts:
	Stock-based compensation		(390	)		(386	)
	Amortization of intangibles		(995	)		(1,094	)
	Cost reduction efforts		(237	)		-
	Consolidated gross profit		44,206			40,813

	Segment operating loss		(4,075	)		(3,974	)
	Unallocated amounts:
	Stock-based compensation		(5,198	)		(5,057	)
	Amortization of intangibles		(1,384	)		(1,566	)
	Cost reduction efforts		(1,134	)		-
	Impairment of goodwill and purchased intangible assets		(12,380	)		-
	Deferred compensation		(65	)		(5,809	)
	Business development expenses		(229	)		(1,616	)
	Consolidated operating loss	$	(24,465	)	$	(18,022	)
Revenue from External Customers Geographic Region	The following table presents net sales by geographic region (in thousands):

		Year Ended December 31,
		2014			2013			2012
	Total sales:
	Europe, Middle East and Africa	$	37,653		$	29,328		$	16,819
	Asia Pacific		15,665			15,954			13,751
	United States		13,053			17,273			19,622
	Canada and Latin America		9,042			12,118			9,435
	Total	$	75,413		$	74,673		$	59,627
Long-lived Assets by Geographic Region	The following table presents geographic information for property and equipment, net (in thousands):

		Year Ended December 31,
		2014			2013
	Property and equipment, net:
	United States	$	1,207		$	1,444
	Canada		2,811			1,019
	Europe		4,299			4,655
	Asia Pacific		5			3
	Total	$	8,322		$	7,121

Supplemental_Quarterly_Financi1

Supplemental Quarterly Financial Data (unaudited) (Tables)	12 Months Ended
Supplemental Quarterly Financial Data (unaudited) (Tables)	Dec. 31, 2014
Supplemental Quarterly Financial Data (unaudited) [Abstract]
Schedule of Quarterly Results of Operations	The following is a summary of quarterly results of operations for the years ended December 31, 2014 and 2013 (in thousands, except per share data):

		Year Ended December 31, 2014
		31-Mar				30-Jun				September				December
		31-Mar				30-Jun				30				31

	Total sales		$	14,541			$	20,608			$	16,109			$	24,155
	Gross profit			8,384				11,743				10,217				13,862
	Income tax provision (benefit)			(147	)			25				(160	)			34
	Net loss			(5,976	)			(1,408	)			(15,712	)			(1,720	)
	Basic net loss per share (1)			(0.29	)			(0.07	)			(0.77	)			(0.08	)
	Diluted net loss per share (1)			(0.29	)			(0.07	)			(0.77	)			(0.08	)

		Year Ended December 31, 2013
		31-Mar				30-Jun				September				December
		31-Mar				30-Jun				30				31

	Total sales		$	14,171			$	17,839			$	21,333			$	21,330
	Gross profit			7,369				10,725				10,357				12,362
	Income tax provision (benefit)			(623	)			(860	)			(205	)			511
	Net loss			(6,717	)			(3,282	)			(2,983	)			(3,302	)
	Basic net loss per share (1)			(0.34	)			(0.16	)			(0.15	)			(0.16	)
	Diluted net loss per share (1)			(0.34	)			(0.16	)			(0.15	)			(0.16	)

	-1	Basic and diluted net loss per share is computed independently. Therefore, the sum of the quarterly net loss per share may not equal the total computed for the fiscal year or any cumulative interim period.

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	Customer	Customer
	Segment
Concentration of Risk [Abstract]
Amount in excess of FDIC insured limit	$17,700,000	$90,500,000
Number of major customers accounts for accounts receivable	1	3
Product Warranty Reserves [Abstract]
Warranty period of product	12 months
Business Segments [Abstract]
Number of reportable segments	1
Minimum [Member]
Schedule of Investments [Line Items]
Maturity of short term investments	12 months
Revenue Recognition [Abstract]
Payment terms to customers	30 days
Maximum [Member]
Schedule of Investments [Line Items]
Maturity of short term investments	24 months
Revenue Recognition [Abstract]
Payment terms to customers	90 days
Machinery, office and computer equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	2 years
Machinery, office and computer equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	5 years
Computer software [Member]
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	3 years
Transportation vehicles [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	3 years
Transportation vehicles [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life of property and equipment	5 years
Shaw Communications, Inc. [Member]
Concentration of Risk [Abstract]
Percentage concentration risk (in hundredths)		13.00%	16.00%
British Telecommunications plc [Member]
Concentration of Risk [Abstract]
Percentage concentration risk (in hundredths)		12.00%
Itochu Techno-Solutions Corp [Member]
Concentration of Risk [Abstract]
Percentage concentration risk (in hundredths)		10.00%
Revenue [Member] \| Shaw Communications, Inc. [Member]
Concentration of Risk [Abstract]
Percentage concentration risk (in hundredths)		13.00%	16.00%
Revenue [Member] \| British Telecommunications plc [Member]
Concentration of Risk [Abstract]
Percentage concentration risk (in hundredths)		12.00%
Revenue [Member] \| Itochu Techno-Solutions Corp [Member]
Concentration of Risk [Abstract]
Percentage concentration risk (in hundredths)		10.00%
Accounts Receivable [Member] \| Customer One [Member]
Concentration of Risk [Abstract]
Percentage concentration risk (in hundredths)	13.00%	32.00%
Accounts Receivable [Member] \| Foreign Customers [Member]
Concentration of Risk [Abstract]
Percentage concentration risk (in hundredths)	93.00%	86.00%
Immaterial Adjustments to Prior Periods [Member] \| Revenue [Member]
Immaterial error corrections		-600,000
Immaterial Adjustments to Prior Periods [Member] \| Gross Margin [Member]
Immaterial error corrections		-400,000
Immaterial Adjustments to Prior Periods [Member] \| Inventory Charges [Member]
Immaterial error corrections		400,000
Immaterial Adjustments to Prior Periods [Member] \| General and Administrative Costs [Member]
Immaterial error corrections		$43,000

Cash_Equivalents_and_Shortterm2

Cash Equivalents and Short-term Investments (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Available for Sale Securities [Line Items]
Amortized Cost	90,764,000	$95,645,000
Gross Unrealized Gains	9,000	13,000
Gross Unrealized Losses	-22,000	0
Fair Value	90,751,000	95,658,000
Minimum [Member]
Available for Sale Securities [Line Items]
Maturity of short term investments	12 months
Maximum [Member]
Available for Sale Securities [Line Items]
Maturity of short term investments	24 months
Cash Equivalents [Member]
Available for Sale Securities [Line Items]
Amortized Cost	6,208,000	79,869,000
Gross Unrealized Gains	1,000	0
Gross Unrealized Losses	0	0
Fair Value	6,209,000	79,869,000
Short-Term Investments [Member]
Available for Sale Securities [Line Items]
Amortized Cost	84,556,000	15,776,000
Gross Unrealized Gains	8,000	13,000
Gross Unrealized Losses	-22,000	0
Fair Value	84,542,000	15,789,000
Short term investments	12,800,000	3,700,000
Money Market Funds [Member]
Available for Sale Securities [Line Items]
Amortized Cost	109,000	79,869,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	109,000	79,869,000
Commercial Paper [Member]
Available for Sale Securities [Line Items]
Amortized Cost	10,794,000	15,776,000
Gross Unrealized Gains	2,000	13,000
Gross Unrealized Losses	0	0
Fair Value	10,796,000	15,789,000
Treasury and Agency Notes and Bills [Member]
Available for Sale Securities [Line Items]
Amortized Cost	54,442,000
Gross Unrealized Gains	5,000
Gross Unrealized Losses	-6,000
Fair Value	54,441,000
Corporate Bonds [Member]
Available for Sale Securities [Line Items]
Amortized Cost	25,419,000
Gross Unrealized Gains	2,000
Gross Unrealized Losses	-16,000
Fair Value	25,405,000

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (Recurring [Member], USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Fair Value Assets Measured On Recurring Basis [Line Items]
Money market funds	$109	$79,869
Commercial paper	10,796	15,789
Treasury and agency notes and bills	54,442
Corporate bonds	25,404
Total assets measured at fair value	90,751	95,658
Level 1 [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Money market funds	109	79,869
Commercial paper	0	0
Treasury and agency notes and bills	0
Corporate bonds	0
Total assets measured at fair value	109	79,869
Level 2 [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Money market funds	0	0
Commercial paper	10,796	15,789
Treasury and agency notes and bills	54,442
Corporate bonds	25,404
Total assets measured at fair value	90,642	15,789
Level 3 [Member]
Fair Value Assets Measured On Recurring Basis [Line Items]
Money market funds	0	0
Commercial paper	0	0
Treasury and agency notes and bills	0
Corporate bonds	0
Total assets measured at fair value	$0	$0

Acquisitions_Details

Acquisitions (Details) (USD $)	0 Months Ended		3 Months Ended	12 Months Ended			3 Months Ended	1 Months Ended
Acquisitions (Details) (USD $)	Jan. 09, 2013		Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Jul. 31, 2014
Business Acquisition [Line Items]
Impairment charge recorded				$12,380,000	$0	$0
Acquisition-related expenses			1,000,000
Tax deductible from goodwill and intangibles	17,600,000
Amortization period of tax deductible from goodwill and intangibles	15 years
Assets acquired [Abstract]
Cash	822,000
Accounts receivable, net	525,000
Other current assets	2,095,000
Identifiable intangible assets	8,460,000
Goodwill	12,346,000	[1]		960,000	12,326,000
Other assets	303,000
Total assets acquired	24,551,000
Liabilities assumed [Abstract]
Accounts payable and other accrued liabilities	420,000
Deferred revenue	555,000
Notes payable	511,000
Deferred tax liability	2,141,000
Total liabilities assumed	3,627,000
Net assets acquired	20,924,000
Acquired Finite-Lived Intangible Assets [Line Items]
Amount				0
Business Acquisition, Pro Forma Information [Abstract]
Pro forma revenues					75,738,000	61,535,000
Pro forma net loss					-7,827,000	-3,718,000
Basic and diluted loss per share (in dollars per share)					($0.39)	($0.20)
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Shares issued (in shares)					518,000
Intangible amortization				1,384,000	1,573,000	0
Acquisition-related Costs [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Acquisition-related expenses for Vineyard					-1,026,000	0
Intangible amortization					36,000	1,661,000
Net change in stock compensation expense					-636,000	1,727,000
Increase (decrease) in deferred compensation expense					-5,809,000	5,874,000
Increase in weighted average common shares outstanding for shares issued and not already included in the weighted average common shares outstanding (in shares)					165,000	518,000
Developed Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life				3 years 0 months 7 days	4 years 0 months 4 days
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Intangible amortization				1,000,000	1,100,000
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life				3 years 0 months 7 days	4 years 0 months 4 days
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Intangible amortization				400,000	500,000
Vineyard [Member]
Business Acquisition [Line Items]
Revenue contributed by acquisition				4,400,000	2,700,000
Net loss contributed by acquisition				13,900,000	2,600,000
Impairment charge recorded							12,400,000
Cash consideration for acquisition	9,800,000
Common stock issued in business acquisition, value	11,100,000
Percentage of interest acquired (in hundredths)	100.00%
Deferred compensation	5,900,000
Founders of acquisition	3
Compensation expense				100,000	5,800,000
Acquired Finite-Lived Intangible Assets [Line Items]
Amount			8,460,000
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Shares issued (in shares)	825,000		518,000
Vineyard [Member] \| Developed Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life			5 years
Amount			5,910,000
Vineyard [Member] \| Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Estimated Useful Life			5 years
Amount			2,550,000
Vineyard [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Period funds will be held in escrow				18 months
Vineyard [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Period funds will be held in escrow				36 months
Vineyard [Member] \| Common Stock [Member]
Business Acquisition [Line Items]
Escrow Deposit	1,900,000
Funds released from escrow								1,800,000
Deferred compensation	3,200,000
Vineyard [Member] \| Cash [Member]
Business Acquisition [Line Items]
Escrow Deposit	2,000,000
Funds released from escrow								1,900,000
Deferred compensation	$2,700,000

[1]	The Company made an election under Section 338(g) of the Internal Revenue Code of 1986, as amended, which resulted in tax-deductible goodwill related to the Vineyard transaction. The Company estimated that the tax-deductible goodwill and intangibles resulting from the election will approximate $17.6 million, to be amortized for U.S. tax purposes over a 15 year period that began on January 1, 2014.

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets (Details) (USD $)	3 Months Ended	12 Months Ended
Goodwill and Intangible Assets (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 09, 2013
Goodwill [Roll Forward]
Balance, December 31, 2013		$12,326,000			$12,346,000	[1]
Impairment of goodwill		-10,840,000
Translation adjustments		-526,000
Balance, December 31, 2014		960,000	12,326,000		12,346,000	[1]
Percentage of goodwill balance impaired (in hundredths)	100.00%
Deferred tax benefit associated with goodwill impairment charge	100,000
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		5,677,000	7,796,000
Accumulated amortization		-2,720,000	-1,526,000
Net Carrying Value		2,957,000	6,270,000
Impairment Charge		-1,540,000
Amortization of acquired intangible assets		1,384,000	1,573,000	0
Finite-lived Intangible Assets [Roll Forward]
Gross Carrying Value, Beginning Balance		7,796,000
Impairment of purchased intangible assets		-1,540,000
Additions		0
Translation adjustments		-579,000
Gross Carrying Value, Ending Balance		5,677,000	7,796,000
Accumulated Amortization, Beginning Balance		-1,526,000
Impairment of intangible assets		0
Additions		-1,384,000
Translation adjustments		190,000
Accumulated Amortization, Ending Balance		-2,720,000	-1,526,000
Net Carrying Value Beginning Balance		6,270,000
Impairment of purchased intangible assets		-1,540,000
Additions		-1,384,000
Translation adjustments		-389,000
Net Carrying Value Ending Balance		2,957,000	6,270,000
Estimated Future Amortization of Intangible Assets [Abstract]
2015		979,000
2016		979,000
2017		979,000
2018		20,000
Net Carrying Value		2,957,000	6,270,000
Developed Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		4,323,000	5,446,000
Accumulated amortization		-1,927,000	-1,066,000
Net Carrying Value		2,396,000	4,380,000
Weighted Average Remaining Life		3 years 0 months 7 days	4 years 0 months 4 days
Impairment Charge	700,000
Amortization of acquired intangible assets		1,000,000	1,100,000
Finite-lived Intangible Assets [Roll Forward]
Impairment of purchased intangible assets	700,000
Accumulated Amortization, Beginning Balance		-1,066,000
Accumulated Amortization, Ending Balance		-1,927,000	-1,066,000
Net Carrying Value Beginning Balance		4,380,000
Net Carrying Value Ending Balance		2,396,000	4,380,000
Estimated Future Amortization of Intangible Assets [Abstract]
Net Carrying Value		2,396,000	4,380,000
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		1,354,000	2,350,000
Accumulated amortization		-793,000	-460,000
Net Carrying Value		561,000	1,890,000
Weighted Average Remaining Life		3 years 0 months 7 days	4 years 0 months 4 days
Impairment Charge	800,000
Amortization of acquired intangible assets		400,000	500,000
Finite-lived Intangible Assets [Roll Forward]
Impairment of purchased intangible assets	800,000
Accumulated Amortization, Beginning Balance		-460,000
Accumulated Amortization, Ending Balance		-793,000	-460,000
Net Carrying Value Beginning Balance		1,890,000
Net Carrying Value Ending Balance		561,000	1,890,000
Estimated Future Amortization of Intangible Assets [Abstract]
Net Carrying Value		$561,000	$1,890,000

[1]	The Company made an election under Section 338(g) of the Internal Revenue Code of 1986, as amended, which resulted in tax-deductible goodwill related to the Vineyard transaction. The Company estimated that the tax-deductible goodwill and intangibles resulting from the election will approximate $17.6 million, to be amortized for U.S. tax purposes over a 15 year period that began on January 1, 2014.

Balance_Sheet_Details_Details

Balance Sheet Details (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Inventory [Abstract]
Finished goods	$14,638	$18,617
Raw materials	199	219
Inventory, net	14,837	18,836
Summary of property and equipment [Abstract]
Accumulated depreciation	-5,777	-3,962
Property and equipment, net	8,322	7,121
Depreciation expense	2,427	1,854	910
Accrued liabilities [Abstract]
Payroll and related	3,398	3,179
Sales commissions	1,778	1,608
Warranty	113	131
Audit and legal services	231	198
Other	1,715	1,605
Total accrued liabilities	7,235	6,721
Warranties reserve [Abstract]
Warranty accrual, beginning of period	131	406
Provision for current period sales	140	58
Change in liability for pre-existing warranties	-60	-115
Deductions for warranty claims processed during the period	-98	-218
Warranty accrual, end of period	113	131	406
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss	-3,190	-1,897
Accumulated Net Unrealized Gain (Loss) on Short-term Investments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss	-13	13
Accumulated Foreign Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated other comprehensive loss	-3,177	-1,910
Machinery and Equipment [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	10,787	9,343
Computer Equipment [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	563	488
Office Furniture and Equipment [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	581	387
Leasehold Improvements [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	1,894	539
Software [Member]
Summary of property and equipment [Abstract]
Property and equipment, gross	$274	$326

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Related Party Transactions [Abstract]
Revenues from transactions with related party	$0	$0.10	$1.70

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	12 Months Ended
Commitments and Contingencies (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leases [Abstract]
Lease information	The leases expire at various dates through 2024 and provide for renewal options ranging from month-to-month to three year terms.
Future minimum payments due [Abstract]
2015	$1,016,000
2016	896,000
2017	666,000
2018	411,000
2019	237,000
Beyond	1,145,000
Total minimum lease payments	4,371,000
Rent expense	900,000	800,000	400,000
Non-cancelable purchase orders	$16,300,000

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	1 Months Ended	12 Months Ended	0 Months Ended	3 Months Ended	12 Months Ended
In Millions, except Share data, unless otherwise specified	Jul. 31, 2014	Dec. 31, 2013	Jan. 09, 2013	Mar. 31, 2013	Dec. 31, 2014
	Jul. 31, 2014	Dec. 31, 2013	Founder	Mar. 31, 2013	Dec. 31, 2014
Preferred Stock [Abstract]
Preferred stock, shares authorized (in shares)		15,000,000			15,000,000
Preferred stock, par value (in dollars per share)		$0.00			0.001
Preferred stock, shares issued (in shares)		0			0
Preferred stock, shares outstanding (in shares)		0			0
Business Acquisition [Line Items]
Business acquisition equity interest issued (in shares)		518,000
Shares release from escrow (in shares)	124,000
Shares remaining in escrow (in shares)					5,000
Vineyard [Member]
Business Acquisition [Line Items]
Business acquisition equity interest issued (in shares)			825,000	518,000
Business acquisition value assigned to shares issued			$14.30
Percentage of interest acquired (in hundredths)			100.00%
Shares release from escrow (in shares)					178,000
Founders of acquisition			3
Vineyard [Member] \| Holding period one [Member]
Business Acquisition [Line Items]
Period shares will be held in escrow					12 months
Vineyard [Member] \| Holding period two [Member]
Business Acquisition [Line Items]
Period shares will be held in escrow					36 months
Vineyard [Member] \| Holding period three [Member]
Business Acquisition [Line Items]
Period shares will be held in escrow					18 months

Stockholders_Equity_Sharebased

Stockholders' Equity, Share-based Compensation Arrangements (Details) (USD $)	12 Months Ended			1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Weighted Average Grant Date Fair Value [Abstract]
Capitalized stock-based compensation expense	$0	$0
Summary of assumptions were used in determining the fair value of stock options [Abstract]
Expected term	5 years 0 months 18 days	4 years 10 months 20 days	4 years 6 months 18 days
Expected volatility (in hundredths)	64.00%	76.00%	78.00%
Risk-free interest rate (in hundredths)	1.57%	1.09%	0.65%
Dividend yield (in hundredths)	0.00%	0.00%	0.00%
Weighted average grant date fair value (in dollars per share)	$4.64	$9.31	$12
Summary of stock based employee compensation expense recognized pursuant to the entity's stock option plans [Abstract]
Stock-based compensation expense	5,198,000	5,057,000	2,784,000
Cost of goods sold [Member]
Summary of stock based employee compensation expense recognized pursuant to the entity's stock option plans [Abstract]
Stock-based compensation expense	390,000	386,000	150,000
Research and development [Member]
Summary of stock based employee compensation expense recognized pursuant to the entity's stock option plans [Abstract]
Stock-based compensation expense	1,427,000	1,225,000	322,000
Sales and marketing [Member]
Summary of stock based employee compensation expense recognized pursuant to the entity's stock option plans [Abstract]
Stock-based compensation expense	1,525,000	1,682,000	1,175,000
General and administrative [Member]
Summary of stock based employee compensation expense recognized pursuant to the entity's stock option plans [Abstract]
Stock-based compensation expense	1,856,000	1,764,000	1,137,000
Restricted Stock [Member]
Awards [Abstract]
Outstanding at the beginning of the year (in shares)	302,000	253,000	136,000
Granted (in shares)	473,000	159,000	152,000
Vested (in shares)	-136,000	-109,000	-35,000
Forfeited (in shares)	-53,000	-1,000	0
Outstanding at the end of the year (in shares)	586,000	302,000	253,000
Weighted Average Grant Date Fair Value [Abstract]
Outstanding at the beginning of the year (in dollars per share)	$16.63	$15.79	$9.24
Granted (in dollars per share)	$9.35	$14.50	$20.32
Vested (in dollars per share)	$15.24	$11.52	$10.04
Forfeited (in dollars per share)	$11.16	$20.25	$0
Outstanding at the end of the year (in dollars per share)	$11.58	$16.63	$15.79
Period for recognition of unrecognized costs	2 years 9 months 25 days
Unrecognized compensation cost related to non-vested RSA's	4,800,000
Stock Options [Member]
Options [Abstract]
Outstanding at the beginning of the year (in shares)	1,824,000	1,332,000	1,198,000
Granted (in shares)	281,000	941,000	629,000
Exercised (in shares)	-62,000	-82,000	-372,000
Cancelled (in shares)	-398,000	-367,000	-123,000
Outstanding at the end of the year (in shares)	1,645,000	1,824,000	1,332,000
Vested and expected to vest at the end of the year (in shares)	1,549,000	1,702,000	1,254,000
Exercisable at the end of the year (in shares)	919,000	674,000	618,000
Weighted Average Exercise Price [Abstract]
Outstanding at the beginning of the year (in dollars per share)	$15.07	$14.93	$10.35
Granted (in dollars per share)	$9.24	$15.64	$20.64
Exercised (in dollars per share)	$5.67	$7.36	$10.24
Cancelled (in dollars per share)	$14.71	$18.30	$14.67
Outstanding at the end of the period (in dollars per share)	$14.71	$15.07	$14.93
Vested and expected to vest at the end of the year (in dollars per share)	$14.78	$14.98	$14.66
Exercisable at the end of the year (in dollars per share)	$14.72	$12.59	$11.58
Aggregate intrinsic value of options outstanding	400,000
Aggregate intrinsic value of options vested and expected to vest	400,000
Aggregate intrinsic value of options exercisable	300,000
Weighted average remaining contractual term, options outstanding	7 years 7 months 2 days
Weighted average remaining contractual term, expected to vest	7 years 6 months 4 days
Weighted average remaining contractual term, options exercisable	6 years 8 months 23 days
Intrinsic value of options exercised during the period	300,000	600,000	3,600,000
Fair value of options during the year	3,900,000	2,200,000	1,900,000
Weighted Average Grant Date Fair Value [Abstract]
Unrecognized compensation costs related to unvested stock options	5,200,000
Period for recognition of unrecognized costs	2 years 4 months 20 days
One time charge of accelerating option grants		$660,000
2007 Equity Incentive Plan [Member]
Stock Incentive Plans [Abstract]
Number of additional share authorized under this plan (in shares)				500,000	800,000	400,000
Total number of share authorized under this plan (in shares)						1,100,000
Aggregate number of shares reserved for issuance under the plan (in shares)	1,900,000
Number of shares available for future grant under the plan (in shares)	249,000
Exercise price as percentages of fair market value of share on the date of award, maximum (in hundredths)	100.00%
Minimum period within which incentive stock options exercisable	10 years
Percentage of entity voting stock hold by stockholder (in hundredths)	10.00%
Exercise price as percentages of fair market value of share on the date of grant maximum (in hundredths)	110.00%
2007 Equity Incentive Plan [Member] \| Minimum [Member]
Stock Incentive Plans [Abstract]
Vesting period of option	3 years
2007 Equity Incentive Plan [Member] \| Maximum [Member]
Stock Incentive Plans [Abstract]
Vesting period of option	5 years

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended								12 Months Ended
Income Taxes (Details) (USD $)	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Summary of components of income (loss) before income taxes [Abstract]
Domestic									($11,610,000)	($13,287,000)	$1,761,000
Foreign									-13,454,000	-4,174,000	3,693,000
Income (loss) before income taxes									-25,064,000	-17,461,000	5,454,000
Current income taxes [Abstract]
Federal									0	0	0
State									10,000	-7,000	60,000
Foreign									319,000	237,000	63,000
Total current income taxes									329,000	230,000	123,000
Deferred income taxes [Abstract]
Foreign									-577,000	-1,407,000	0
Total deferred income taxes									-577,000	-1,407,000	0
Income tax provision (benefit)	34,000	-160,000	25,000	-147,000	511,000	-205,000	-860,000	-623,000	-248,000	-1,177,000	123,000
Deferred tax assets [Abstract]
Federal, state and foreign net operating losses	12,110,000				10,508,000				12,110,000	10,508,000
Research and other tax credits	1,703,000				1,122,000				1,703,000	1,122,000
Stock-based compensation expense	1,444,000				1,236,000				1,444,000	1,236,000
Goodwill and intangibles	4,759,000				0				4,759,000	0
Other	3,347,000				2,634,000				3,347,000	2,634,000
Valuation allowance	-22,492,000				-14,399,000				-22,492,000	-14,399,000
Total deferred tax assets	871,000				1,101,000				871,000	1,101,000
Deferred tax liabilities [Abstract]
Intangible assets and others	-871,000				-1,690,000				-871,000	-1,690,000
Net deferred tax liabilities	0				-589,000				0	-589,000
Schedule of effective income tax provision [Abstract]
Computed at statutory rate (in hundredths)									34.00%	34.00%	34.00%
State income taxes (in hundredths)									1.00%	3.00%	2.00%
Stock compensation (in hundredths)									-3.00%	-6.00%	-2.00%
Foreign tax (in hundredths)									5.00%	-1.00%	-23.00%
Acquisition expenses (in hundredths)									0.00%	-12.00%	0.00%
Permanent items and other (in hundredths)									-1.00%	-4.00%	4.00%
Valuation allowance (in hundredths)									-35.00%	-7.00%	-13.00%
Total									1.00%	7.00%	2.00%
Increase/decrease in valuation allowance									8,100,000	1,800,000
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards relates stock option deductions									1,900,000
Tax Credit Carryforward [Line Items]
Undistributed earnings of foreign operations	800,000								800,000
Activity related to unrecognized tax benefits [Roll Forward]
Balance at January 1				196,000				193,000	196,000	193,000
Increase related to current year tax position									9,000	2,000
Increase related to tax position of prior year									8,000	1,000
Balance at December 31	213,000				196,000				213,000	196,000	193,000
Unrecognized tax benefits would affect effective tax rate	200,000								200,000
Unrecognized tax benefits, accrued interest or penalties	0								0
Federal Income Tax [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	31,000,000								31,000,000
Federal Income Tax [Member] \| Research and Development Tax Credits [Member]
Tax Credit Carryforward [Line Items]
Research and development tax credits	400,000								400,000
State Income Tax [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	23,500,000								23,500,000
State Income Tax [Member] \| Research and Development Tax Credits [Member]
Tax Credit Carryforward [Line Items]
Research and development tax credits	300,000								300,000
Foreign Income Tax [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$3,600,000								$3,600,000

Net_Income_Loss_Per_Share_Deta

Net Income (Loss) Per Share (Details) (USD $)	3 Months Ended																12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Numerator [Abstract]
Net income (loss)	($1,720)		($15,712)		($1,408)		($5,976)		($3,302)		($2,983)		($3,282)		($6,717)		($24,816)	($16,284)	$5,331
Denominator [Abstract]
Weighted average common shares - basic (in shares)																	20,450	20,091	17,842
Dilutive effect of employee equity incentive plans (in shares)																	0	0	484
Dilutive effect of warrants (in shares)																	0	0	11
Weighted average common shares - diluted (in shares)																	20,450	20,091	18,337
Net income (loss) per share [Abstract]
Basic (in dollars per share)	($0.08)	[1]	($0.77)	[1]	($0.07)	[1]	($0.29)	[1]	($0.16)	[1]	($0.15)	[1]	($0.16)	[1]	($0.34)	[1]	($1.21)	($0.81)	$0.30
Diluted (in dollars per share)	($0.08)	[1]	($0.77)	[1]	($0.07)	[1]	($0.29)	[1]	($0.16)	[1]	($0.15)	[1]	($0.16)	[1]	($0.34)	[1]	($1.21)	($0.81)	$0.29
Options and restricted stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities (in shares)																	1,349	1,186	301

[1]	Basic and diluted net loss per share is computed independently. Therefore, the sum of the quarterly net loss per share may not equal the total computed for the fiscal year or any cumulative interim period.

Retirement_Plans_Details

Retirement Plans (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Retirement Plans [Abstract]
Contributions made to defined contribution retirement plan	$0.20	$0.20	$0

Segment_and_Geographic_Informa

Segment and Geographic Information - Schedule of Segment Revenue, gross profit and operating loss (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Gross Profit	$13,862	$10,217	$11,743	$8,384	$12,362	$10,357	$10,725	$7,369	$44,206	$40,813	$40,158
Unallocated amounts:
Stock-based compensation									5,198	5,057	2,784
Amortization of intangibles									1,384	1,573	0
Consolidated gross profit	13,862	10,217	11,743	8,384	12,362	10,357	10,725	7,369	44,206	40,813	40,158
Segment operating loss									-24,465	-18,022	5,305
Unallocated amounts:
Stock-based compensation									5,198	5,057	2,784
Amortization of intangibles									1,384	1,573	0
Impairment of goodwill and purchased intangible assets									12,380	0	0
Consolidated operating loss									-24,465	-18,022	5,305
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales	24,155	16,109	20,608	14,541	21,330	21,333	17,839	14,171	75,413	74,673	59,627
Gross profit	13,862	10,217	11,743	8,384	12,362	10,357	10,725	7,369	44,206	40,813	40,158
Operating Income (Loss)									-24,465	-18,022	5,305
Cost of Sales [Member]
Unallocated amounts:
Stock-based compensation									390	386	150
Unallocated amounts:
Stock-based compensation									390	386	150
Reportable Geographical Components [Member] \| United States [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales									13,053	17,273	19,622
Reportable Geographical Components [Member] \| Canada and Latin America [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales									9,042	12,118	9,435
Reportable Geographical Components [Member] \| Europe, Middle East and Africa [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales									37,653	29,328	16,819
Reportable Geographical Components [Member] \| Asia Pacific [Member]
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales									15,665	15,954	13,751
Segment Reconciling Items [Member] \| Cost of Sales [Member]
Unallocated amounts:
Stock-based compensation									-390	-386
Amortization of intangibles									-995	-1,094
Cost reduction efforts									-237	0
Unallocated amounts:
Stock-based compensation									-390	-386
Amortization of intangibles									-995	-1,094
Cost reduction efforts									-237	0
Segment Reconciling Items [Member] \| Operating Loss [Member]
Unallocated amounts:
Stock-based compensation									-5,198	-5,057
Amortization of intangibles									-1,384	-1,566
Cost reduction efforts									-1,134	0
Unallocated amounts:
Stock-based compensation									-5,198	-5,057
Amortization of intangibles									-1,384	-1,566
Cost reduction efforts									-1,134	0
Impairment of goodwill and purchased intangible assets									-12,380	0
Deferred compensation									-65	-5,809
Business development expenses									-229	-1,616
Operating Segments [Member]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Gross Profit									45,828	42,293
Unallocated amounts:
Consolidated gross profit									45,828	42,293
Segment operating loss									-4,075	-3,974
Unallocated amounts:
Consolidated operating loss									-4,075	-3,974
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales									75,413	74,673
Gross profit									45,828	42,293
Operating Income (Loss)									-4,075	-3,974
Operating Segments [Member] \| PacketLogic [Member]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Gross Profit									42,097	40,088
Unallocated amounts:
Consolidated gross profit									42,097	40,088
Segment operating loss									-3,522	-1,526
Unallocated amounts:
Consolidated operating loss									-3,522	-1,526
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales									71,028	72,015
Gross profit									42,097	40,088
Operating Income (Loss)									-3,522	-1,526
Operating Segments [Member] \| All Other [Member]
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract]
Gross Profit									3,731	2,205
Unallocated amounts:
Consolidated gross profit									3,731	2,205
Segment operating loss									-553	-2,448
Unallocated amounts:
Consolidated operating loss									-553	-2,448
Segment Reporting Information, Revenue for Reportable Segment [Abstract]
Sales									4,385	2,658
Gross profit									3,731	2,205
Operating Income (Loss)									($553)	($2,448)

Segment_and_Geographic_Informa1

Segment and Geographic Information - Schedule of Geographic Revenue Information (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net sales [Abstract]
Total sales	$24,155	$16,109	$20,608	$14,541	$21,330	$21,333	$17,839	$14,171	$75,413	$74,673	$59,627
Reportable Geographical Components [Member] \| United States [Member]
Net sales [Abstract]
Total sales									13,053	17,273	19,622
Reportable Geographical Components [Member] \| Canada and Latin America [Member]
Net sales [Abstract]
Total sales									9,042	12,118	9,435
Reportable Geographical Components [Member] \| Europe, Middle East and Africa [Member]
Net sales [Abstract]
Total sales									37,653	29,328	16,819
Reportable Geographical Components [Member] \| Asia Pacific [Member]
Net sales [Abstract]
Total sales									15,665	15,954	13,751
Operating Segments [Member]
Net sales [Abstract]
Total sales									75,413	74,673
Operating Segments [Member] \| PacketLogic [Member]
Net sales [Abstract]
Total sales									71,028	72,015
Operating Segments [Member] \| All Other [Member]
Net sales [Abstract]
Total sales									$4,385	$2,658

Segment_and_Geographic_Informa2

Segment and Geographic Information - Schedule of Property and Equipment, Net (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	Customer	Customer	Customer
Property and equipment, net [Abstract]
Property and equipment, net	$8,322	$7,121
Percentage of revenue generated from foreign customers (in hundredths)	83.00%	77.00%	67.00%
Number of major customers	0	3	1
Number of major customers accounts for accounts receivable	1	3
Percentage of accounts receivable due from foreign customers (in hundredths)	93.00%	86.00%
Shaw Communications, Inc. [Member]
Property and equipment, net [Abstract]
Percentage of total net revenues (in hundredths)		13.00%	16.00%
British Telecommunications plc [Member]
Property and equipment, net [Abstract]
Percentage of total net revenues (in hundredths)		12.00%
Itochu Techno-Solutions Corp [Member]
Property and equipment, net [Abstract]
Percentage of total net revenues (in hundredths)		10.00%
Customer One [Member]
Property and equipment, net [Abstract]
Percentage of accounts receivable (in hundredths)	13.00%	32.00%
Reportable Geographical Components [Member] \| United States [Member]
Property and equipment, net [Abstract]
Property and equipment, net	1,207	1,444
Reportable Geographical Components [Member] \| Asia Pacific [Member]
Property and equipment, net [Abstract]
Property and equipment, net	5	3
Reportable Geographical Components [Member] \| Europe [Member]
Property and equipment, net [Abstract]
Property and equipment, net	4,299	4,655
Reportable Geographical Components [Member] \| Canada [Member]
Property and equipment, net [Abstract]
Property and equipment, net	$2,811	$1,019

Subsequent_Events_Details

Subsequent Events (Details) (Subsequent Event [Member], USD $)	0 Months Ended
	Feb. 13, 2015
	sqft
	Floor
Subsequent Event [Member]
Subsequent Event [Line Items]
Term of lease	54 months
Number of floors occupied	2
Amount of square feet occupied in building leased	4,499
Payments for rent	$400,000

Supplemental_Quarterly_Financi2

Supplemental Quarterly Financial Data (unaudited) (Details) (USD $)	3 Months Ended																12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2013		Sep. 30, 2013		Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Summary of quarterly results of operations [Abstract]
Total sales	$24,155		$16,109		$20,608		$14,541		$21,330		$21,333		$17,839		$14,171		$75,413	$74,673	$59,627
Gross profit	13,862		10,217		11,743		8,384		12,362		10,357		10,725		7,369		44,206	40,813	40,158
Income tax provision (benefit)	34		-160		25		-147		511		-205		-860		-623		-248	-1,177	123
Net loss	($1,720)		($15,712)		($1,408)		($5,976)		($3,302)		($2,983)		($3,282)		($6,717)		($24,816)	($16,284)	$5,331
Basic net loss per share (in dollars per share)	($0.08)	[1]	($0.77)	[1]	($0.07)	[1]	($0.29)	[1]	($0.16)	[1]	($0.15)	[1]	($0.16)	[1]	($0.34)	[1]	($1.21)	($0.81)	$0.30
Diluted net loss per share (in dollars per share)	($0.08)	[1]	($0.77)	[1]	($0.07)	[1]	($0.29)	[1]	($0.16)	[1]	($0.15)	[1]	($0.16)	[1]	($0.34)	[1]	($1.21)	($0.81)	$0.29

[1]	Basic and diluted net loss per share is computed independently. Therefore, the sum of the quarterly net loss per share may not equal the total computed for the fiscal year or any cumulative interim period.

SCHEDULE_II_VALUATION_AND_QUAL1

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) (Allowance for doubtful accounts [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for doubtful accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$129	$96	$98
Additions Charged to Expense or Other Accounts	0	40	6
Deductions	-82	-7	-8
Balance at End of Year	$47	$129	$96