Note 11 - Income Taxes and Deferred Tax Asset/Liability (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority	$ 314,000
Deferred Tax Liabilities, Net, Noncurrent	$ 360,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%	35.00%	35.00%