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Inventory

6 Months Ended

Jun. 30, 2021

6. Inventory

Our inventory balance consists of the following (in thousands):


		June 30,			December 31,
		2021			2020
Raw materials		$	1,275		$	1,275
Work-in-process			37,307			21,242
Finished goods			13,678			13,456
			52,260			35,973
Inventories-current			16,675			16,425
Inventories-noncurrent		$	35,585		$	19,548

Inventories, stated at the lower of cost and net realizable value, consist of raw materials, work in process and finished goods. At June 30, 2021, $16.7 million of inventory was classified as current on the condensed consolidated balance sheet as we expect this inventory to be consumed for commercial use within the next twelve months. At June 30, 2021, $35.6 million of inventory was classified as noncurrent on the condensed consolidated balance sheets as we did not expect this inventory to be consumed for commercial use within the next twelve months. We obtain some inventory components from a limited number of suppliers due to technology, availability, price, quality or other considerations. The loss of a supplier, the deterioration of our relationship with a supplier, or any unilateral violation of the contractual terms under which we are supplied components by a supplier could adversely affect our total revenues and gross margins.