Note 10 - Stock Repurchase Program (Details Textual) - USD ($)	3 Months Ended
	Sep. 30, 2015	Aug. 27, 2015	Jan. 21, 2009
Treasury Stock, Shares, Acquired	1,235,406
Stock Repurchase Program, Authorized Amount			$ 2,500,000
Stock Repurchase Program Authorized Additional Amount		$ 5,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 5,001,189