CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jan. 31, 2018	Apr. 30, 2017
Current assets:
Cash and cash equivalents	$ 1,062	$ 3,295
Accounts receivable, net	2,942	2,274
Prepaid expenses and other current assets	185	300
Total current assets	4,189	5,869
Restricted cash	150	150
Property and equipment, net	1,980	1,216
Other Long Term Assets	107	107
Goodwill	669	669
Total assets	7,095	8,011
Current liabilities:
Accounts payable	1,961	1,852
Accrued liabilities	365	685
Deferred revenue	3,851	4,910
Total current liabilities	6,177	7,447
Other non-current liabilities	446	164
Total liabilities	6,623	7,611
Stockholders’ equity:
Common stock, $.001 par value; 200,000,000 shares authorized; 11,277,675 and 11,251,844 shares issued and 11,000,847 and 10,982,159 shares outstanding as of January 31, 2018 and April 30, 2017, respectively	11	11
Treasury stock, at cost, 269,685 common shares as of January 31, 2018 and April 30, 2017	(1,252)	(1,252)
Additional paid-in capital	71,906	70,991
Accumulated deficit	(70,193)	(69,350)
Total stockholders’ equity	472	400
Total liabilities and stockholders’ equity	$ 7,095	$ 8,011

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.