Note 9 - Liabilities (Detail) - Other long-term liabilities: (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Other Long-term liabilities	$ 9,753	$ 9,372
Tax Related [Member]
Other Long-term liabilities	7,340	7,340
Phantom stock liability [Member]
Other Long-term liabilities	2,072	1,798
Deferred compensation [Member]
Other Long-term liabilities	288	234
Other long-term liabilities [Member]
Other Long-term liabilities	$ 53