Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 31, 2015	Apr. 30, 2015
Current assets:
Cash	$ 2,460	$ 5,426
Accounts receivable, net of allowances of $50 and $106, respectively	2,654	3,918
Prepaid expenses	510	765
Other current assets	217	203
Total current assets	5,841	10,312
Property and equipment, net of accumulated depreciation of $5,659 and $5,563, respectively	872	864
Goodwill	11,706	11,706
Intangibles, net	3,767	4,102
Other assets	427	422
Total assets	22,613	27,406
Current liabilities:
Accounts payable	465	616
Current portion of long-term debt	755	1,029
Accrued compensation and related expenses	879	869
Other accrued liabilities	785	881
Deferred revenue	5,984	7,584
Total current liabilities	8,868	10,979
Long-term debt, net of current portion	9,058	10,810
Deferred tax liabilities, net	955	1,119
Common stock warrant liability	125	195
Other long-term liabilities	578	623
Total liabilities	$ 19,584	$ 23,726
Commitments and contingencies
Stockholders' equity:
Common stock	$ 17	$ 17
Additional paid-in capital	100,338	100,293
Accumulated other comprehensive income	280	280
Accumulated deficit	(97,606)	(96,910)
Total stockholders' equity	3,029	3,680
Total liabilities and stockholders' equity	$ 22,613	$ 27,406

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.