Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2016	Apr. 30, 2016
Current assets:
Cash and cash equivalents	$ 43,508	$ 43,963
Short-term investments	48,298	50,682
Accounts receivable, net of allowance for doubtful accounts of $1,908 and $2,362 as of July 31, 2016 and April 30, 2016, respectively	38,027	39,597
Prepaid expenses and other current assets	8,990	8,415
Total current assets	138,823	142,657
Property, equipment and capitalized internal-use software development costs, net	31,420	31,649
Goodwill	139,155	139,155
Acquired intangible assets, net	9,135	9,607
Other non-current assets	4,174	5,214
Total assets	322,707	328,282
Current liabilities:
Accounts payable	3,549	6,110
Accrued expenses and other current liabilities	19,218	23,167
Deferred revenue	65,992	62,735
Total current liabilities	88,759	92,012
Long-term liabilities:
Revolving line of credit	42,000	42,000
Deferred revenue less current portion	2,198	2,481
Other liabilities, long-term	7,056	7,255
Total liabilities	140,013	143,748
Commitments and contingencies (Note 9)
Stockholders’ equity:
Common stock – $0.0001 par value; 150,000,000 shares authorized, 83,020,797 shares issued and 82,820,797 shares outstanding as of July 31, 2016; 150,000,000 shares authorized, 82,269,748 shares issued and 82,069,748 shares outstanding at April 30, 2016	8	8
Treasury stock, at cost – 200,000 shares as of July 31, 2016 and April 30, 2016	0	0
Additional paid-in capital	441,143	437,239
Accumulated other comprehensive loss	(1,517)	(878)
Accumulated deficit	(256,940)	(251,835)
Total stockholders’ equity	182,694	184,534
Total liabilities and stockholders’ equity	$ 322,707	$ 328,282