Note 10 - Acquisitions (Details) - The Unaudited Pro Forma Information (USD $)	3 Months Ended		9 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2013	Aug. 31, 2012
The Unaudited Pro Forma Information [Abstract]
As Reported (in Dollars)	$ 9,350,391	$ 11,533,882	$ 27,015,804	$ 29,531,268
Pro Forma (in Dollars)	9,350,391	11,533,882	27,015,804	31,785,360
As Reported (in Dollars)	26,394	979,451	1,359,894	2,108,929
Pro Forma (in Dollars)	$ 26,394	$ 979,451	$ 1,359,894	$ 2,623,389
As Reported	$ 0.01	$ 0.24	$ 0.34	$ 0.52
Pro Forma	$ 0.01	$ 0.24	$ 0.34	$ 0.65
As Reported	$ 0.01	$ 0.24	$ 0.34	$ 0.52
Pro Forma	$ 0.01	$ 0.24	$ 0.34	$ 0.65
Weighted average outstanding shares used to compute basic net income per share (in Shares)	4,041,682	4,035,852	4,038,118	4,031,828
Weighted average outstanding shares used to compute diluted net income per share (in Shares)	4,057,773	4,052,246	4,050,819	4,049,236