Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss)	$ (454)	$ 2,191
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	1,606	1,555
Gain on sale of airplane		(529)
Deferred compensation, restricted stock	150	47
Changes in assets and liabilities
Accounts receivable	(1,046)	(2,117)
Income tax receivable		27
Inventories	(1,425)	(374)
Prepaid expenses and other current assets	(242)	(100)
Accounts payable	394	(38)
Customer deposits	4,662	190
Lease liability	(276)	(224)
Accrued liabilities	(815)	(156)
Gaming facility mandated payment	(92)	(305)
Income tax payable	(6)	735
Other current liabilities	40	15
Net cash provided by operating activities	2,496	917
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(1,977)	(58)
Proceeds from sale of airplanes		975
Net cash provided by (used in) investing activities	(1,977)	917
CASH FLOWS FROM FINANCING ACTIVITIES
Borrowings of long-term debt	2,001
Repayments of long-term debt	(1,595)	(556)
Repurchase of common stock	(108)	(43)
Net cash provided by (used in) financing activities	298	(599)
NET INCREASE IN CASH	817	1,235
CASH, beginning of period	16,793	9,014
CASH, end of period	17,610	10,249
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest paid	584	1,096
Income taxes paid
NON CASH INVESTING AND FINANCING ACTIVITY
Lease right-of-use assets and lease liability		$ 41,981