Note 2 - Summary of Significant Accounting Policies (Details) - Weighted Average Common Shares	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Weighted Average Common Shares [Abstract]
Weighted average common shares outstanding - basic	10,454,716	10,440,803	10,436,730	10,393,956	10,377,678	10,377,189	10,371,716	10,327,428	10,431,743	10,363,678
Employee stock options and unvested shares of restricted stock									34,321	55,425
Weighted average common shares outstanding - diluted	10,480,867	10,477,814	10,456,183	10,448,911	10,435,096	10,404,095	10,394,094	10,366,312	10,466,064	10,419,103
Average number of potentially dilutive securities excluded from calculation									48,021	32,836