Note 12 - Income Taxes (Detail) (USD $)	9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Operating Loss Carryforwards		$ 4,600,000
Tax Credit Carryforward, Amount		171,000
Excess Tax Benefit From Share Based Compensation	7,900,000
Unrecognized Tax Benefits	322,000	308,000
Unrecognized Tax Benefits, Period Increase (Decrease)	14,000
Foreign Tax Credit [Member]
Tax Credit Carryforward, Amount		$ 894,000