Note 2 - Summary of Significant Accounting Policies (Detail) - Weighted Average Common Shares	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Weighted average common shares outstanding - basic	10,302,417	10,182,795	10,260,601	10,132,807
Employee stock options and unvested shares of restricted stock	57,960	114,489	87,579	154,248
Weighted average common shares and common share equivalents outstanding – diluted	10,360,377	10,297,284	10,348,180	10,287,055
Average number of potentially dilutive securities excluded from calculation	229,675	114,280	42,720	79,633