Note 10 - Equity Compensation (Detail) - Stock Options (USD $)	6 Months Ended			12 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Beginning of Period [Member]	Jun. 30, 2012 Beginning of Period [Member]	Jun. 30, 2011 Beginning of Period [Member]	Dec. 31, 2012 End of Period [Member]	Dec. 31, 2011 End 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	6 years 36 days	6 years 109 days
Outstanding - Aggregate Intrinsic Value (in Dollars)			$ 654,747	$ 955,401
Exercisable - Shares	1,668,975	1,402,575
Exercisable - Weighted Average Exercise Price (in Dollars per share)	$ 11.31	$ 12.17
Exercisable - Weighted Average Remaining Contractual Term	5 years	5 years 219 days
Exercisable - Aggregate Instrinsic Value (in Dollars)	347,904	90,695
Granted - Shares	414,750	6,000	414,750		6,000
Granted - Weighted Average Exercise Price (in Dollars per share)	$ 6.58	$ 6.68	$ 6.58		$ 6.68
Forfeitures - Shares			(19,425)		(137,654)
Forfeitures - Weighted Average Exercise Price (in Dollars per share)			$ 16.57		$ 12.26
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	2,400,075	1,990,375
Outstanding - Weighted Average Exercise Price (in Dollars per share)				$ 10.64	$ 10.80	$ 9.90	$ 10.69
Outstanding - Weighted Average Remaining Contractual Term				5 years 292 days	6 years 109 days	6 years 36 days	6 years 109 days
Outstanding - Aggregate Intrinsic Value (in Dollars)				$ 654,747	$ 955,401	$ 793,543	$ 273,248