Inventory consists of parts and that are ultimately consumed in the manufacturing and final assembly of satellites. When an item in inventory has been identified and incorporated into a specific satellite, the cost of the is charged to cost of goods sold in the consolidated statements of operations and comprehensive loss. Inventory is measured at the lower of cost or net realizable value. The cost of inventory includes direct material, direct labor and manufacturing overhead and is determined on a basis. Inventory is presented net of an allowance for losses associated with excess and obsolete items, which is estimated based on the Company’s current knowledge with respect to inventory levels, planned production and customer demand.