Note 6 - Inventory (Detail) - Inventory, net of carrying value reserves (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Raw materials	$ 31,242	$ 31,884
Work in process	2,367	4,005
Finished goods	56,251	60,956
Total inventory	89,860	96,845
Less: Non-current inventory	7,770	7,081
Total inventory-current	$ 82,090	$ 89,764