Note 8 - Stockholders' Equity (Details Textual) - USD ($)			12 Months Ended
	Dec. 01, 2015	Sep. 21, 2011	Jun. 30, 2016	Jun. 30, 2015
LITP 2007 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
Employee Stock Purchase Plan [Member]
Maximum Fair Market Value of Common Stock to be Granted to Employees		$ 2,400
Maximum Number of Common Stock Covered		100,000
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures			15,794	15,957
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures			$ 100,000	$ 100,000
Common Stock [Member] | Issue One [Member]
Stock Issued During Period, Shares, New Issues			57,126	61,207
Stock Issued During Period, Value, New Issues			$ 300,000	$ 200,000
Common Stock [Member]
Treasury Stock, Shares, Retired				(137,362)
Shares Paid for Tax Withholding for Share Based Compensation			60,612
Treasury Stock [Member]
Stock Repurchased During Period, Shares			29,695	89,388
Stock Repurchased During Period, Value			$ 200,000	$ 500,000
Treasury Stock, Shares, Retired				137,362
Treasury Stock, Retired, Cost Method, Amount				$ 802,000
Shares Paid for Tax Withholding for Share Based Compensation			60,612	134,386
Adjustments Related to Tax Withholding for Share-based Compensation			$ 300,000	$ 800,000
Employee Stock Option [Member] | Restricted Stock [Member]
Allocated Share-based Compensation Expense			400,000	600,000
Tender Offer [Member]
Purchases of Common Stock During Period	2,000,000
Purchases of Common Stock Price Per Share	$ 7.50
Purchases of Common Stock During Period, Value	$ 15,000,000
Payment of Fees for Repurchase of Common Stock	$ 100,000
Restricted Stock [Member]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized			$ 300,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			3 years 36 days
Payment of Fees for Repurchase of Common Stock			$ 118,000
Stock Repurchased During Period, Shares			1,982,235
Stock Repurchased During Period, Value			$ 4,700,000
Treasury Stock, Shares, Retired				137,362
Treasury Stock, Retired, Cost Method, Amount				$ 800,000
Adjustments Related to Tax Withholding for Share-based Compensation			$ 341,000
Class of Warrant or Right, Cancelled During Period				4,630
Class of Warrant or Right, Cancelled During Period, Exercise Price				$ 0.80