Acquisitions - Additional Information (Detail) - USD ($)			9 Months Ended
	Jan. 15, 2016	Dec. 07, 2015	Feb. 29, 2016
CryoScience
Business Acquisition [Line Items]
Total consideration for acquired entity		$ 30,287,000	$ 30,287,000
Business acquisition, date of acquisition agreement		Dec. 07, 2015
Business acquisition, estimated working capital deficit adjustment		$ 1,069,000	$ 1,069,000
NetBraze, LLC
Business Acquisition [Line Items]
Total consideration for acquired entity	$ 3,390,000
Business acquisition, date of acquisition agreement	Jan. 15, 2016
Business acquisition, contingent consideration estimated fair value	$ 540,000
Business acquisition, working capital	1,565,000
Business acquisition, fixed assets	$ 1,825,000