Consolidated Balance Sheets - USD ($) $ in Thousands	Apr. 30, 2023	Apr. 30, 2022
CURRENT ASSETS:
Cash	$ 21,997	$ 12,487
Accounts receivable, net	3,793	3,636
Inventory, net	8,947	8,872
Contract asset	1,893	1,470
Prepaid expenses and other current assets	3,532	1,361
Total current assets	40,162	27,826
LEASE RIGHT-TO-USE ASSET, net	3,081	2,728
PROPERTY, PLANT AND EQUIPMENT, net	59,067	58,846
SUPPLEMENTAL TYPE CERTIFICATES (net of accumulated amortization of $10,603 at April 30, 2023 and $9,336 at April 30, 2022)	8,722	8,018
OTHER ASSETS:
Other assets (net of accumulated amortization of $12,290 at April 30, 2023 and $11,575 at April 30, 2022)	1,401	1,621
Deferred tax asset, net	1,473	1,770
Total other assets	2,874	3,391
Total assets	113,906	100,809
CURRENT LIABILITIES:
Accounts payable	5,320	2,773
Current maturities of long-term debt	4,987	5,165
Current maturities of lease liability	145	106
Contract liability	6,031	820
Gaming facility mandated payment	1,730	1,630
Compensation and compensated absences	6,722	1,911
Income tax payable	228	1,049
Other current liabilities	214	211
Total current liabilities	25,377	13,665
Long-term debt, net of current maturities	38,418	43,411
Lease liability, net of current maturities	3,330	2,899
Total long-term liabilities	41,748	46,310
Total liabilities	67,125	59,975
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Common stock, par value $.01: Authorized 100,000,000 shares, issued 80,871,211 shares, and outstanding 76,891,689 shares at April 30, 2023 and issued 80,348,572 shares, and outstanding 76,458,146 shares at April 30, 2022	808	803
Capital contributed in excess of par	13,647	12,160
Treasury stock at cost, 3,979,522 shares at April 30, 2023 and 3,890,426 shares at April 30, 2022	(2,138)	(2,077)
Retained earnings	34,464	29,948
Total stockholders' equity	46,781	40,834
Total liabilities and stockholders' equity	113,906	100,809
Preferred Class A [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Preferred Class B [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	$ 0	$ 0