Accrued Expenses and Other (Tables)

12 Months Ended

Jul. 31, 2012

Accrued Expenses and Other [Abstract]

Accrued expenses and other

	2012		2011
Employee compensation	$	213	$	212
Vacation		56		71
Deferred income		467		374
Warranty reserve		166		185
Professional fees		147		150
Other		573		707
Total	$	1,622	$	1,699

Product warranty liability

	2012			2011
Balance at beginning of period	$	185		$	223
Accruals for warranty liability		99			145
Warranty charges		(118	)		(183	)
Balance at end of period	$	166		$	185