Note 1 - Summary of Significant Interim Accounting Policies (Detail) - Earnings Per Share Data (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net income used in the computation of basic and diluted earnings per share (in Dollars)	$ 1,229,000	$ 327,000
Weighted average shares outstanding - basic	6,121,180	6,025,874
Common stock equivalents	48,295	116,742
Weighted average shares outstanding - diluted	6,169,475	6,142,616
Basic
Net income (in Dollars per share)	$ 0.20	$ 0.05
Diluted
Net income (in Dollars per share)	$ 0.20	$ 0.05