Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 5,038	$ 962
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	2,377	2,608
Changes in assets and liabilities
Accounts receivable	(668)	2,151
Inventories	(1,544)	(1,163)
Prepaid expenses and other current assets	(431)	(124)
Deferred tax asset		274
Income tax receivable	219
Accounts payable	(520)	(494)
Customer deposits	1,864	(150)
Accrued liabilities	1,252	(909)
Gaming facility mandated payment	(244)	(322)
Other current liabilities	147	139
Net cash provided by operating activities	7,490	2,972
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(1,499)	(1,834)
Net cash used in investing activities	(1,499)	(1,834)
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of promissory notes, net	(2,387)	(109)
Repayments of long-term debt	(1,220)	(1,795)
Distribution to non-controlling member	(720)	(360)
Purchase of common stock	(214)	(142)
Net cash used in financing activities	(4,541)	(2,406)
NET INCREASE (DECREASE) IN CASH	1,450	(1,268)
CASH, beginning of period	7,353	6,389
CASH, end of period	8,803	5,121
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Interest paid	172	250
Income taxes paid	105	609
SUPPLEMENTAL NONCASH INVESTING AND FINANCING ACTIVITIES
Capital asset and lease obligation additions	$ 1,699