Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2015	Apr. 30, 2014
Current assets:
Cash and cash equivalents	$ 44,655	$ 55,803
Investments	17,584	14,796
Trade accounts receivable, less allowance for doubtful accounts of $215 at April 30, 2015 and $222 at April 30, 2014:
Billed	16,018	15,422
Unbilled	3,585	3,234
Prepaid expenses and other current assets	3,748	4,092
Total current assets	85,590	93,347
Investments-noncurrent	13,156	8,975
Property and equipment, net	3,548	3,681
Capitalized software, net	9,815	10,732
Goodwill	18,749	13,819
Other intangibles, net	2,748	534
Other assets	660	132
Total assets	134,266	131,220
Current liabilities:
Accounts payable	920	1,382
Accrued compensation and related costs	3,048	3,532
Dividends payable	2,861	2,822
Other current liabilities	3,274	2,735
Deferred income taxes	636	418
Deferred revenue	28,511	23,638
Total current liabilities	39,250	34,527
Deferred income taxes	995	1,936
Long-term deferred revenue	290	670
Other long-term liabilities	805	1,527
Total liabilities	41,340	38,660
Shareholders' equity:
Additional paid-in capital	110,829	106,203
Retained earnings	4,159	7,368
Class A treasury stock, 4,568,297 shares at April 30, 2015 and 4,444,815 shares at April 30, 2014, at cost	(25,378)	(24,278)
Total shareholders' equity	$ 92,926	$ 92,560
Commitments and contingencies
Total liabilities and shareholders' equity	$ 134,266	$ 131,220
Class A Common Shares
Shareholders' equity:
Common stock value	3,057	3,008
Class B Common Shares
Shareholders' equity:
Common stock value	$ 259	$ 259

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.