Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Oct. 31, 2019	Apr. 30, 2019
Allowance for doubtful accounts receivable	$ 109	$ 153
Property and equipment, accumulated depreciation	29,644	29,327
Capitalized software, accumulated amortization	31,877	28,740
Other intangibles, accumulated amortization	$ 11,618	$ 10,643
Class A Common Shares
Common stock, par value (in usd per share)	$ 0.10	$ 0.10
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	34,630,682	33,979,739
Common stock, shares outstanding	30,042,050	29,391,107
Class A treasury stock (in shares)	4,588,632	4,588,632
Class B Common Shares
Common stock, par value (in usd per share)	$ 0.10	$ 0.10
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	1,821,587	1,821,587
Common stock, shares outstanding	1,821,587	1,821,587