The Company recognizes revenue for sales to direct customers and sales to certain distributors upon shipment, provided that persuasive evidence of a sales arrangement exists, the price is fixed or determinable, title and risk of loss has transferred, collectability of the resulting receivable is reasonably assured, there are no customer acceptance requirements and the Company does not have any significant post-shipment obligations. Estimated returns for sales to direct customers and certain distributors are based on historical returns rates applied against current period gross revenues. Specific customer returns and allowances are considered within this estimate. Accounts receivable from direct customers and distributors are recognized and inventory is relieved upon shipment as title to inventories generally transfers upon shipment, at which point the Company has a legally enforceable right to collection under normal terms. Accounts receivable related to consigned inventory is recognized when the customer takes title to such inventory from its consigned location, at which point inventory is relieved, title transfers, and the Company has a legally enforceable right to collection under the terms of the Company's agreement with the related customers. An allowance for distributor credits covering price adjustments is made based on our estimate of historical experience rates as well as considering economic conditions and contractual terms. To date, actual distributor claims activity has been materially consistent with the provisions we have made based on our historical estimates. The Company had historically recognized a portion of revenue through certain distributors at the time the distributor resold the product to its end customer (also referred to as the sell-through basis of revenue recognition) given the difficulty in estimating the ultimate price of these product shipments and amount of potential returns. The Company continuously reassesses its ability to reliably estimate the ultimate price of these products a