Note 9 - Equity Compensation (Details) - Stock Options (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Note 9 - Equity Compensation (Details) - Stock Options [Line Items]
Exercisable - Shares	1,643,050	1,404,400	1,192,814
Exercisable - Weighted Average Exercise Price (in Dollars per share)	$ 11.34	$ 12.11	$ 12.85
Exercisable - Weighted Average Remaining Contractual Term	4 years 219 days	5 years 36 days	5 years
Exercisable - Aggregate Instrinsic Value (in Dollars)	$ 524,522	$ 234,971	$ 112,594
Granted - Shares	414,750	36,000	288,200
Granted - Weighted Average Exercise Price (in Dollars per share)	$ 6.58	$ 7.13	$ 5.29
Forfeitures - Shares	(44,350)	(150,939)	(280,347)
Forfeitures - Weighted Average Exercise Price (in Dollars per share)	$ 13.61	$ 12.12	$ 11.53
Exercised - Shares	(35,500)	(2,750)	(7,000)
Exercised - Weighted Average Exercise Price (in Dollars per share)	$ 4.93	$ 5.18	$ 8.40
Beginning of Period [Member]
Note 9 - Equity Compensation (Details) - Stock Options [Line Items]
Outstanding - Shares	2,006,250	2,123,939	2,123,086
Outstanding - Weighted Average Exercise Price (in Dollars per share)	$ 10.64	$ 10.80	$ 11.64
Outstanding - Weighted Average Remaining Contractual Term	5 years 292 days	6 years 109 days	6 years 219 days
Outstanding - Aggregate Intrinsic Value (in Dollars)	654,747	955,401	15,270
End of Period [Member]
Note 9 - Equity Compensation (Details) - Stock Options [Line Items]
Outstanding - Shares	2,341,150	2,006,250	2,123,939
Outstanding - Weighted Average Exercise Price (in Dollars per share)	$ 9.95	$ 10.64	$ 10.80
Outstanding - Weighted Average Remaining Contractual Term	5 years 219 days	5 years 292 days	6 years 109 days
Outstanding - Aggregate Intrinsic Value (in Dollars)	$ 1,544,896	$ 654,747	$ 955,401