Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jul. 31, 2023	Apr. 30, 2023
CURRENT ASSETS:
Cash	$ 14,236	$ 21,997
Accounts receivable, net	3,260	3,793
Inventory, net	9,047	8,947
Contract asset	3,169	1,893
Prepaid expenses and other current assets	2,066	3,532
Total current assets	31,778	40,162
LEASE RIGHT-TO-USE ASSET, net	3,033	3,081
PROPERTY, PLANT AND EQUIPMENT, net	58,335	59,067
SUPPLEMENTAL TYPE CERTIFICATES (net of accumulated amortization of $10,886 at July 31, 2023 and $10,603 at April 30, 2023)	9,061	8,722
OTHER ASSETS:
Other assets (net of accumulated amortization of $12,469 at July 31, 2023 and $12,290 at April 30, 2023)	1,320	1,401
Deferred tax asset, net	1,473	1,473
Total other assets	2,793	2,874
Total assets	105,000	113,906
CURRENT LIABILITIES:
Accounts payable	4,168	5,320
Current maturities of long-term debt	4,815	4,987
Current maturities of lease liability	136	145
Contract liability	9,256	6,031
Gaming facility mandated payment	1,449	1,730
Compensation and compensated absences	1,543	6,722
Income taxes payable	493	228
Other current liabilities	350	214
Total current liabilities	22,210	25,377
LONG-TERM LIABILITIES
Long-term debt, net of current maturities	37,252	38,418
Lease liability, net of current maturities	3,322	3,330
Total long-term liabilities	40,574	41,748
Total liabilities	62,784	67,125
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Common stock, par value $.01: Authorized 100,000,000 shares, issued 79,571,211 shares, and outstanding 68,727,900 shares at July 31, 2023 and issued 80,871,211 shares, and outstanding 76,891,689 shares at April 30, 2023	795	808
Capital contributed in excess of par	13,411	13,647
Treasury stock at cost, 10,843,311 shares at July 31, 2023 and 3,979,522 shares at April 30, 2023	(7,173)	(2,138)
Retained earnings	35,183	34,464
Total stockholders' equity	42,216	46,781
Total liabilities and stockholders' equity	105,000	113,906
Preferred Class A [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	0	0
Preferred Class B [Member]
STOCKHOLDERS' EQUITY:
Preferred stock	$ 0	$ 0