OEM Partner Agreements (Tables)

12 Months Ended

Jul. 31, 2015

Codman Collaborative Arrangement [Member]

Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]

Total sales to marketing partners and their respective percent of the Company's net sales

Total sales to Codman and its respective percent of the Company’s net sales for the years ended July 31, 2015, 2014 and 2013, including the historical sales of generators, accessories and disposable cord tubing that the Company has supplied in the past, as well as the disposable bipolar forceps sales resulting from the addendum to the existing distribution agreement, were as follows (dollars in thousands):

	Year Ended July 31,
	2015			2014			2013
Net sales	$	17,323		$	15,173		$	14,097
Percent of net sales		23.1	%		23.4	%		22.4	%

Stryker Collaborative Arrangement [Member]

Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]

Total sales to marketing partners and their respective percent of the Company's net sales

Total sales to Stryker and its respective percent of the Company’s net sales for the years ended July 31, 2015, 2014 and 2013, including the historical sales of pain control generators, and accessories that the Company has supplied in the past, as well as the disposable ultrasonic aspirator instrument tips sales and certain other consumable products resulting from the new agreements, were as follows (dollars in thousands):

	Year Ended July 31,
	2015			2014			2013
Net sales	$	13,507		$	10,779		$	10,815
Percent of net sales		18.0	%		16.6	%		17.2	%