Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jan. 31, 2019	May 01, 2018	Apr. 30, 2018	Jan. 31, 2018	Apr. 30, 2017
Current assets:
Cash and cash equivalents	$ 55,058	$ 52,794	$ 52,794	$ 54,912	$ 66,001
Investments	28,106	26,121	26,121
Trade accounts receivable, less allowance for doubtful accounts of $132 at January 31, 2019 and $159 at April 30, 2018:
Billed	20,298	18,643	18,643
Unbilled	2,992	3,815	3,375
Prepaid expenses and other current assets	6,184	6,718	6,592
Total current assets	112,638	108,091	107,525
Investments—noncurrent	998	8,893	8,893
Property and equipment, net of accumulated depreciation of $29,130 at January 31, 2019 and $28,644 at April 30, 2018	3,562	3,034	3,034
Capitalized software, net of accumulated amortization of $27,506 at January 31, 2019 and $24,113 at April 30, 2018	10,497	9,728	9,728
Goodwill	25,888	25,888	25,888
Other intangibles, net of accumulated amortization of $10,047 at January 31, 2019 and $8,255 at April 30, 2018	3,328	5,120	5,120
Other assets	3,910	4,102	2,777
Total assets	160,821	164,856	162,965
Current liabilities:
Accounts payable	1,789	1,974	1,974
Accrued compensation and related costs	2,909	6,310	6,310
Dividends payable	3,417	3,367	3,367
Other current liabilities	1,279	1,326	1,246
Deferred revenue	32,947	32,705	33,226
Total current liabilities	42,341	45,682	46,123
Deferred income taxes	3,027	3,194	2,615
Long-term deferred revenue	0	147	147
Other long-term liabilities	1,097	1,496	1,496
Total liabilities	46,465	50,519	50,381
Shareholders’ equity:
Additional paid-in capital	136,522	131,258	131,258
Retained (deficit) earnings	(172)	5,119	3,366
Class A treasury stock, 4,588,632 shares at January 31, 2019 and April 30, 2018, at cost	(25,559)	(25,559)	(25,559)
Total shareholders’ equity	114,356	114,337	112,584
Total liabilities and shareholders’ equity	160,821	164,856	162,965
Class A Common Shares
Shareholders’ equity:
Common stock value	3,383	3,314	3,314
Class B Common Shares
Shareholders’ equity:
Common stock value	$ 182	$ 205	$ 205