Note 7 - Basic and Diluted Earnings Per Common Share (Detail) - Earnings Per Share Reconciliation (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income (numerator) (in Dollars)	$ 414,000	$ 386,000	$ 859,000	$ 578,000
Shares (denominator):
Basic weighted average common shares outstanding	20,674,335	22,052,822	20,839,266	22,303,561
Add: Dilutive effect of common stock options				587,748
Diluted weighted average common shares outstanding	20,674,335	22,052,822	20,839,266	22,891,309
Earnings per common share:
Basic (in Dollars per share)	$ 0.02	$ 0.02	$ 0.04	$ 0.03
Diluted (in Dollars per share)	$ 0.02	$ 0.02	$ 0.04	$ 0.03