Note 8 - Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	32.10%	31.20%	33.60%	31.20%
Unrecognized Tax Benefits (in Dollars)	$ 363,000		$ 363,000		$ 357,000