INVENTORIES

Our inventories primarily consist of ferrous and non-ferrous, including stainless steel, scrap metals and are valued at the lower of average purchased cost or market using the specific identification method. Quantities of inventories are determined based on our inventory systems and are subject to periodic physical verification using estimation techniques including observation, weighing and other industry methods. We recognize inventory impairment when the market value, based upon current market pricing, falls below recorded value or when the estimated volume is less than the recorded volume of the inventory. We record the loss in cost of goods sold in the period during which we identified the loss.

Some commodities are in saleable condition at acquisition. We purchase these commodities in small amounts until we have a truckload of material available for shipment. Some commodities are not in saleable condition at acquisition. These commodities must be shredded, torched, sheared or baled. We do not have work-in-process inventory that needs to be manufactured to become finished goods. We include processing costs in inventory for all commodities.

Inventory also includes all types of industrial waste handling equipment and machinery held for resale such as compactors, balers, and containers. Replacement parts included in inventory are depreciated over a one-year life. Other inventory includes fuel, cardboard and baling wire. Inventories as of March 31, 2012 and December 31, 2011 consist of the following:



	March 31, 2012								December 31, 2011
	Raw Materials		Finished Goods		Processing Costs		Total (unaudited)		Raw Materials		Finished Goods		Processing Costs		Total
	(in thousands)
Stainless steel, ferrous and non-ferrous materials	$	20,433	$	1,102	$	1,052	$	22,587	$	14,633	$	1,409	$	777	$	16,819
Waste equipment machinery	—		55		—		55		—		39		—		39
Other	—		80		—		80		—		63		—		63
Total inventories for sale	20,433		1,237		1,052		22,722		14,633		1,511		777		16,921
Replacement parts	1,654		—		—		1,654		1,623		—		—		1,623
Total inventories	$	22,087	$	1,237	$	1,052	$	24,376	$	16,256	$	1,511	$	777	$	18,544