CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Dec. 28, 2013
Current assets:
Cash and cash equivalents	$ 113,940	$ 59,196
Marketable securities	49,897	91,895
Accounts receivable, net	45,152us-gaap_AccountsReceivableNetCurrent	30,189us-gaap_AccountsReceivableNetCurrent
Inventories, net	25,548us-gaap_InventoryNet	20,707us-gaap_InventoryNet
Deferred tax assets	2,036us-gaap_DeferredTaxAssetsNetCurrent	2,776us-gaap_DeferredTaxAssetsNetCurrent
Refundable income taxes	782us-gaap_IncomeTaxesReceivable	782us-gaap_IncomeTaxesReceivable
Prepaid expenses and other current assets	6,919	6,106
Total current assets	244,274us-gaap_AssetsCurrent	211,651us-gaap_AssetsCurrent
Restricted cash	435	435
Property, plant and equipment, net	25,498us-gaap_PropertyPlantAndEquipmentNet	35,190us-gaap_PropertyPlantAndEquipmentNet
Goodwill	30,731us-gaap_Goodwill	30,731us-gaap_Goodwill
Intangibles, net	38,689	57,470
Deferred tax assets	3,466us-gaap_DeferredTaxAssetsNetNoncurrent	3,960us-gaap_DeferredTaxAssetsNetNoncurrent
Other assets	1,150us-gaap_OtherAssetsNoncurrent	1,271us-gaap_OtherAssetsNoncurrent
Total assets	344,243us-gaap_Assets	340,708us-gaap_Assets
Current liabilities:
Accounts payable	20,274us-gaap_AccountsPayableCurrent	16,313us-gaap_AccountsPayableCurrent
Accrued liabilities	21,217us-gaap_AccruedLiabilitiesCurrent	13,985us-gaap_AccruedLiabilitiesCurrent
Capital leases, current portion	0us-gaap_CapitalLeaseObligationsCurrent	270us-gaap_CapitalLeaseObligationsCurrent
Income taxes payable	68us-gaap_AccruedIncomeTaxesCurrent	172us-gaap_AccruedIncomeTaxesCurrent
Deferred revenue	6,303us-gaap_DeferredRevenueCurrent	7,030us-gaap_DeferredRevenueCurrent
Total current liabilities	47,862us-gaap_LiabilitiesCurrent	37,770us-gaap_LiabilitiesCurrent
Long-term income taxes payable	1,094us-gaap_AccruedIncomeTaxesNoncurrent	2,497us-gaap_AccruedIncomeTaxesNoncurrent
Deferred tax liabilities	2,208	3,029
Deferred rent and other liabilities	3,643	3,326
Total liabilities	54,807us-gaap_Liabilities	46,622us-gaap_Liabilities
Commitments and contingencies (Note 9)
Stockholders' equity:
Preferred Stock, $0.001 par value: 10,000,000 shares authorized; no shares issued and outstanding at December 27, 2014 and December 28, 2013	0us-gaap_PreferredStockValue	0us-gaap_PreferredStockValue
Common stock, $0.001 par value: 250,000,000 shares authorized; 56,518,428 and 54,649,600 shares issued and outstanding at December 27, 2014 and December 28, 2013, respectively	57us-gaap_CommonStockValue	55us-gaap_CommonStockValue
Additional paid-in capital	711,676	695,631
Accumulated other comprehensive loss	(1,761)	(249)
Accumulated deficit	(420,536)	(401,351)
Total stockholders' equity	289,436us-gaap_StockholdersEquity	294,086us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	$ 344,243	$ 340,708

This element represents the cumulative difference between the rental income or payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, more than one year after the balance sheet date. Also includes aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).

No definition available.