Note 4 - Stock-Based Compensation (Details) - Summary of Stock Option Activity (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Note 4 - Stock-Based Compensation (Details) - Summary of Stock Option Activity [Line Items]
Shares on option - balance	20,500
Shares available for grant - balance	471,300
Shares Available For Grant [Member] | Employee Stock Purchase Plan (ESPP) [Member]
Note 4 - Stock-Based Compensation (Details) - Summary of Stock Option Activity [Line Items]
Balance, June 26, 2010	352,185	612,524	658,547
Shares available for grant - balance	448,544	352,185	612,524
Shares on option - granted	61,382	61,815	69,078
Shares available for grant - granted	(61,382)	(61,815)	(69,078)
Shares on option - exercised	0	0	0
Shares available for grant - exercised	0	0	0
Shares on option - canceled	(9,926)	(24,044)	(23,055)
Shares available for grant - canceled	9,926	24,044	23,055
Shares available for grant - plan expired	(352,185)	(222,568)
2012 Plan authorized	500,000
Employee Stock Purchase Plan (ESPP) [Member]
Note 4 - Stock-Based Compensation (Details) - Summary of Stock Option Activity [Line Items]
Balance, June 26, 2010	102,490	74,009	61,084
Shares on option - balance	88,728	102,490	74,009
Shares on option - granted	61,382	61,815	69,078
Weighted average exercise price - granted (in Dollars per share)	$ 8.77	$ 9.87	$ 8.99
Shares available for grant - granted	(61,382)	(61,815)	(69,078)
Shares on option - exercised	(34,128)	(9,290)	(33,098)
Weighted average exercise price - exercised (in Dollars per share)	$ 8.28	$ 8.73	$ 7.65
Shares available for grant - exercised	(34,128)	(9,290)	(33,098)
Shares on option - canceled	(41,016)	(24,044)	(23,055)
Shares available for grant - canceled	41,016	24,044	23,055