Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2012	Jun. 30, 2012
Consolidated Balance Sheets [Abstract]
Billed receivables, allowance for doubtful accounts	$ 303,000	$ 263,000
Inventories, net of reserves	$ 1,220,000	$ 1,200,000
Preferred stock, par value
Preferred stock, authorized	1,000,000	1,000,000
Preferred stock, issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	19,000,000	19,000,000
Common stock, issued	8,463,000	8,402,000
Common stock, outstanding	8,463,000	8,402,000