Note 8 - Income Taxes (Detail)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate	35.00%	35.00%
Effective Income Tax Rate, Continuing Operations	65.50%	40.40%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Compensation Cost	24.60%
Effective Income Tax Rate Reconciliation, State and Local Income Taxes	4.70%	6.30%
Effective Income Tax Rate Reconciliation, Nondeductible Expense	1.60%	0.60%
Effective Income Tax Rate Reconciliation, Other Adjustments	0.40%	1.50%