Equipment
 12 Months Ended
Jun. 30, 2012
Equipment [Abstract]  
Equipment
4.      Equipment

Equipment consisted of the following at June 30:

 
2012
 
 
2011
 
Estimated Useful Life
Machinery and equipment
 
$
3,496,000
 
 
$
3,130,000
 
3-10 years or lease term
Computer and software
 
 
864,000
 
 
 
779,000
 
2-5 years
Office equipment
 
 
563,000
 
 
 
605,000
 
5-10 years
Leasehold improvements
 
 
205,000
 
 
 
205,000
 
5 years or lease term
 
 
5,128,000
 
 
 
4,719,000
 
Less accumulated depreciation and amortization
 
 
(3,476,000
)
 
 
(3,409,000
)
 
$
1,652,000
 
 
$
1,310,000
 

During the years ended June 30, 2012 and 2011, there were disposals of fully depreciated assets with a gross book value of $322,000 and $250,000, respectively.

Depreciation expense for the years ended June 30, 2012, 2011 and 2010 was $471,000, $466,000 and $492,000, respectively.