Note 5 - Earnings Per Share (Details) - Computation of Basic and Diluted Earnings Per Share (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Computation of Basic and Diluted Earnings Per Share [Abstract]
Numerator for basic and diluted earnings per share - net income (in Dollars)	$ 2,128	$ 2,074	$ 6,430	$ 7,050
Denominator for basic earnings per share - weighted average shares outstanding	3,253,939	3,202,104	3,243,385	3,191,226
Effect of dilutive securities - employee stock options	12,542	13,572	11,543	13,605
Denominator for diluted earnings per share - adjusted weighted average shares outstanding	3,266,481	3,215,676	3,254,928	3,204,831
Earnings per share - basic (in Dollars per share)	$ 0.65	$ 0.65	$ 1.98	$ 2.21
Earnings per share - diluted (in Dollars per share)	$ 0.65	$ 0.64	$ 1.98	$ 2.20