Note 2 - Summary of Significant Accounting Policies (Details) - Weighted Average Common Shares	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Weighted Average Common Shares [Abstract]
Weighted average common shares outstanding - basic	10,371,716	10,273,812	10,349,695	10,239,463
Potentially dilutive securities:
Employee stock options and unvested shares of restricted stock	22,378	85,845	30,584	102,551
Weighted average common shares and common share equivalents outstanding - diluted	10,394,094	10,359,657	10,380,279	10,342,014
Average number of potentially dilutive securities excluded from calculation	18,462	31,962	28,605	38,811