Enterprise-wide Sales Information (Tables)

3 Months Ended

Jan. 31, 2013

Enterprise-wide Sales Information [Abstract]

Enterprise-wide sales information for the three and six months ended January 31, 2013 and 2012, respectively, consisted of the following (dollars in thousands):

	Three Months Ended January 31, 2013		Three Months Ended January 31, 2012		Six Months Ended January 31, 2013		Six Months Ended January 31, 2012
Net Sales
Ophthalmic	$	8,684	$	8,906	$	17,347	$	17,668
OEM (1)		5,178		5,974		10,926		10,518
Other (2)		193		200		402		399
Total	$	14,055	$	15,080	$	28,675	$	28,585
Net Sales
Domestic	$	9,977	$	10,940	$	20,809	$	20,741
International		4,078		4,140		7,866		7,844
	$	14,055	$	15,080	$	28,675	$	28,585