Table:
March 31,

(in thousands)	2019	2018

Raw materials	$3,445	$2,969

Finished goods	6,356	6,253

Total inventories	$9,801	$9,222

Answer the following question using the tabular data along with the context text, feel free to explain how you reached the answer, then present the result in JSON format {"answer": ["ANSWER"], "scale": "SCALE"} (leave scale empty if none).

Context:
Inventories and Inventory Valuation
Inventories are stated at the lower of first-in, first-out (FIFO) cost or market value. Market value is based upon an estimated average selling price reduced by estimated costs of disposal. Should actual market conditions differ from the Company’s estimates, the Company’s future results of operations could be materially affected. Reductions in inventory valuation are included in Cost of revenue in the accompanying Consolidated Statements of Operations. The Company reviews inventory for excess quantities and obsolescence based on its best estimates of future demand, product lifecycle status and product development plans. The Company uses historical information along with these future estimates to reduce the inventory cost basis. Subsequent changes in facts and circumstances do not result in the restoration or increase in that newly established cost basis. Prices anticipated for future inventory demand are compared to current and committed inventory values.
The components of inventories are as follows:

Question: What does the Company use to reduce the inventory cost basis?

answer: uses historical information along with these future estimates