Note 5 - Income Taxes (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Effective Income Tax Rate, Continuing Operations	39.90%	42.50%	43.00%
Unrecognized Tax Benefits	$ 281,000	$ 288,000
Unrecognized Tax Benefits, Period Increase (Decrease)	(7,000)
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 183,000