Note 10 - Equity Compensation (Detail) - Stock Options (USD $)	0 Months Ended		3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Exercisable - Shares			1,669,725	1,519,739
Exercisable - Weighted Average Exercise Price (in Dollars per share)			$ 11.31	$ 12.13
Exercisable - Weighted Average Remaining Contractual Term			5 years 73 days	5 years 146 days
Exercisable - Aggregate Instrinsic Value (in Dollars)			$ 293,398	$ 116,020
Granted - Shares			408,750
Granted - Weighted Average Exercise Price (in Dollars per share)			$ 6.58
Beginning of Period [Member]
Outstanding - Shares			2,006,250	2,123,939
Outstanding - Weighted Average Exercise Price (in Dollars per share)			$ 10.64	$ 10.80
Outstanding - Weighted Average Remaining Contractual Term	5 years 292 days	6 years 109 days
Outstanding - Aggregate Intrinsic Value (in Dollars)			654,747	955,401
Granted - Shares			408,750
Granted - Weighted Average Exercise Price (in Dollars per share)			$ 6.58
Forfeitures - Shares			(13,800)	(17,150)
Forfeitures - Weighted Average Exercise Price (in Dollars per share)			$ 19.76	$ 16.37
Exercised - Shares			(1,500)	(2,000)
Exercised - Weighted Average Exercise Price (in Dollars per share)			$ 5.21	$ 5.21
Outstanding - Shares	2,006,250	2,123,939
Outstanding - Weighted Average Exercise Price (in Dollars per share)	$ 10.64	$ 10.80
Outstanding - Weighted Average Remaining Contractual Term	5 years 292 days	6 years 109 days
Outstanding - Aggregate Intrinsic Value (in Dollars)	654,747	955,401
End of Period [Member]
Outstanding - Weighted Average Remaining Contractual Term			6 years 109 days	6 years 36 days
Outstanding - Shares			2,399,700	2,104,789
Outstanding - Weighted Average Exercise Price (in Dollars per share)			$ 9.90	$ 10.76
Outstanding - Weighted Average Remaining Contractual Term			6 years 109 days	6 years 36 days
Outstanding - Aggregate Intrinsic Value (in Dollars)			$ 585,326	$ 351,774