Acquired Intangible Assets, net (Tables)

12 Months Ended

Apr. 30, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Acquired Intangible Assets, Net

Acquired intangible assets, net, as of April 30, 2016 and April 30, 2015 for continuing operations are as follows (in thousands):

	April 30, 2016							April 30, 2015
	Gross Fair Value		Accumulated Amortization			Net Book Value		Gross Fair Value		Accumulated Amortization			Net Book Value
Customer relationships	$	11,835	$	(4,158	)	$	7,677	$	11,835	$	(2,921	)	$	8,914
Developed technology	3,265		(1,335		)	1,930		3,265		(681		)	2,584
Total	$	15,100	$	(5,493	)	$	9,607	$	15,100	$	(3,602	)	$	11,498

Estimate of Future Amortization Expense for Definite-Lived Intangible Assets

The following table presents our estimate of future amortization expense for definite-lived intangible assets (in thousands):

Fiscal period:	Amount
Fiscal year 2017	$	1,890
Fiscal year 2018	1,890
Fiscal year 2019	1,856
Fiscal year 2020	1,130
Fiscal year 2021	1,130
Thereafter	1,711
Total	$	9,607