Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2011	Jun. 30, 2011
Consolidated Balance Sheets [Abstract]
Billed receivables, allowance for doubtful accounts	$ 361	$ 314
Inventories, reserves	$ 1,618	$ 1,645
Preferred stock, par value
Preferred stock, authorized	1,000	1,000
Preferred stock, issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	19,000	19,000
Common stock, issued	8,387	8,566
Common stock, outstanding	8,387	8,566