Discontinued Operations (Detail) - USD ($)	3 Months Ended	9 Months Ended
Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2019	Jan. 31, 2018
(Gain) on sale of assets	$ 0	$ (308)	$ 34,356	$ (5,773)
Income tax expense	(12,419)	(553,899)	(134,538)	(847,176)
Income from discontinued operations, net of tax	(163,594)	171,432	(106,862)	235,248
Club Fortune Casino [Member]
Gross revenues	2,289,969	3,862,505	8,750,437	11,827,509
Less promotional allowances	0	(552,248)	0	(1,713,786)
Net revenues	2,289,969	3,310,257	8,750,437	10,113,723
Casino and food and beverage expense	1,331,637	2,027,281	5,456,195	6,111,932
Marketing and administrative	644,731	839,229	2,305,831	2,561,965
Facility and other expenses	52,544	87,968	236,513	245,878
Depreciation and amortization	0	340,385	220,531	1,087,380
Goodwill impairment	0	0	115,128	0
Loss on reclassification as held for sale	0	0	84,872	0
(Gain) on sale of assets	472,866	0	472,735	0
Income tax expense	(48,215)	(156,038)	(34,506)	(128,680)
Income from discontinued operations, net of tax	$ (163,594)	$ 171,432	$ (106,862)	$ 235,248

Amount of depreciation and amortization expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of general and administrative expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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