Condensed Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2013	Jun. 30, 2013
Condensed Balance Sheets [Abstract]
Accounts receivable, allowances (in dollars)	$ 99	$ 79
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	25,000	25,000
Common stock, shares issued (in shares)	21,126	20,909
Common stock, shares outstanding (in shares)	20,835	20,795