Note 2 - Summary of Accounting Policies (Detail) - Consolidated Variable Interest Entities - Income Statement Data (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Revenues	$ 55,792	$ 59,419	$ 40,132
Gross profit	12,005	11,544	7,209
Net income	$ 1,959	$ 1,373	$ 2,995