Note 5 - Goodwill and Intangible Assets (Detail) - Estimated Amortization Expense for Future Years (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
2012 October through December	$ 105
2013	253
2014	105
2015	50
2016	50
2017 and thereafter	150
Total amortization expense	$ 713	$ 1,027