Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2013	Jun. 30, 2012
Receivables, allowance (in Dollars)	$ 68	$ 38
Preferred stock, par value (in Dollars per share)	$ 0	$ 0
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in Dollars per share)	$ 0	$ 0
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	12,253,000	12,253,000
Common stock, shares outstanding	12,253,000	12,253,000
Manufacturing Inventories [Member]
Receivables, allowance (in Dollars)	$ 203