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