Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Oct. 31, 2022	Oct. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 3,114	$ 7,928
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	2,939	2,631
Gain on sale of airplane	0	(75)
Gain on sale of building	(69)	0
Deferred income tax expense	280	234
Stock awarded to director	352	0
Forgiveness of debt	0	(2,001)
Deferred compensation, restricted stock	278	297
Changes in operating assets and liabilities
Accounts receivable	(324)	(1,605)
Inventories	(424)	109
Contract assets	228	(680)
Prepaid expenses and other current assets	(1,557)	(296)
Accounts payable	(157)	850
Contract liability	4,028	(4,553)
Lease liability	93	75
Accrued liabilities	(408)	(32)
Gaming facility mandated payment	52	100
Income tax payable	(814)	710
Other liabilities	238	175
Net cash provided by operating activities	7,849	3,867
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(3,253)	(3,381)
Proceeds from sale of airplane	0	75
Proceeds from sale of building	164	0
Net cash used in investing activities	(3,089)	(3,306)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of long-term debt	(2,614)	(1,863)
Repurchase of common stock	(2)	(4)
Repayments on lease right-to-use	(129)	(132)
Purchase of noncontrolling interest in BHCMC, LLC	0	(7,659)
Net cash used in financing activities	(2,745)	(9,658)
NET INCREASE (DECREASE) IN CASH	2,015	(9,097)
CASH, beginning of period	12,487	22,022
CASH, end of period	14,502	12,925
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest paid	1,423	1,253
Income taxes paid	1,686	715
NON CASH INVESTING AND FINANCING ACTIVITY
Lease right-of-use assets purchased	541	0
Lease liability for purchase of assets under lease	541	0
Secured notes payable for purchase of noncontrolling interest in BHCMC, LLC, net	0	7,914
Notes receivable forgiven as part of purchase of noncontrolling interest in BHCMC, LLC	0	780
Deferred tax asset relating to the purchase of noncontrolling interest in BHCMC, LCC	0	2,344
Purchase of noncontrolling interest - note receivable and other liabilities	$ 0	$ 6,350