Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 4,516	$ 12,240
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	5,898	5,281
Forgiveness of debt	0	(2,001)
Stock issued for benefit plan	783	807
Stock awarded to director	352	0
Deferred income tax expense	297	174
Gain on sale of airplane	(410)	(75)
Gain on sale of building	(69)	0
Deferred compensation, restricted stock	357	585
Changes in operating assets and liabilities:
Accounts receivable	(157)	(1,675)
Inventory	(75)	(304)
Contract asset	(423)	(1,049)
Prepaid expenses and other assets	(2,171)	141
Accounts payable	2,547	880
Contract liability	5,211	(4,978)
Lease liability	188	148
Accrued liabilities	4,811	49
Gaming facility mandated payment	100	172
Income tax payable	(821)	837
Other liabilities	3	(54)
Net cash provided by operating activities	20,937	11,178
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(6,510)	(9,579)
Proceeds from sale of airplane	410	75
Proceeds from sale of building	164	0
Net cash used in investing activities	(5,936)	(9,504)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings of long-term debt	0	1,262
Repayments of long-term debt	(5,171)	(4,388)
Payments on right-to-use liability	(259)	(256)
Repurchase of common stock	(61)	(168)
Net cash used in financing activities	(5,491)	(11,209)
NET INCREASE (DECREASE) IN CASH	9,510	(9,535)
CASH, beginning of year	12,487	22,022
CASH, end of year	21,997	12,487
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Interest paid	2,752	2,684
Income taxes paid	2,536	2,265
NON CASH INVESTING AND FINANCING ACTIVITY:
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
Lease right-to-use assets purchased	541	247
Lease liability for purchase of assets under lease	541	0
Notes Payable to Bank [Member]
NON CASH INVESTING AND FINANCING ACTIVITY:
Secured notes payable	0	7,914
BHCMC, LLC [Member]
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of noncontrolling interest in BHCMC, LLC	$ 0	$ (7,659)