Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2015	Apr. 30, 2014
Current assets:
Cash and cash equivalents	$ 54,041	$ 31,934
Restricted cash		604
Short-term investments	52,730	40,700
Accounts receivable, net of allowance for doubtful accounts of $3,992 and $2,324 as of April 30, 2015 and 2014, respectively	49,532	39,099
Prepaid expenses and other current assets	12,977	8,212
Assets held for sale	0	33,745
Total current assets	169,280	154,294
Property, equipment and capitalized internal-use software development costs, net	19,054	17,005
Goodwill	139,155	139,155
Acquired intangible assets, net	11,498	13,388
Other non-current assets	3,974	3,428
Total assets	342,961	327,270
Current liabilities:
Accounts payable	3,539	3,346
Accrued expenses and other current liabilities	27,397	27,071
Revolving line of credit		27,000
Deferred revenue	60,400	54,951
Liabilities held for sale		3,621
Total current liabilities	91,336	115,989
Long-term liabilities
Revolving line of credit	57,000
Deferred revenue less current portion	2,530	1,722
Deferred tax liability, long-term	81	1,730
Other liabilities, long-term	631	1,367
Total liabilities	$ 151,578	$ 120,808
Commitments and contingencies (Note 15)
Stockholders' equity:
Common stock - $0.0001 par value; 150,000,000 shares authorized, 80,346,488 shares issued and 80,146,488 shares outstanding as of April 30, 2015; 150,000,000 shares authorized, 77,887,663 shares issued and 77,637,663 shares outstanding at April 30, 2014	$ 8	$ 8
Treasury stock, at cost - 200,000 and 250,000 shares at April 30, 2015 and 2014, respectively	0	0
Additional paid-in capital	418,509	398,201
Accumulated other comprehensive income (loss)	(638)	328
Accumulated deficit	(226,496)	(192,075)
Total stockholders' equity	191,383	206,462
Total liabilities and stockholders' equity	$ 342,961	$ 327,270

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.