Note 2 - Summary of Significant Accounting Policies (Detail) - Weighted Average Common Shares	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Weighted average common shares outstanding - basic	10,273,812	10,146,613	10,239,463	10,107,398
Employee stock options and unvested shares of restricted stock	85,845	150,289	102,551	174,459
Weighted average common shares and common share equivalents outstanding - diluted	10,359,657	10,296,902	10,342,014	10,281,857
Average number of potentially dilutive securities excluded from calculation	31,962	64,670	38,811	62,310