Statements of Cash Flows - USD ($)	12 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2022
Cash flows from operating activities
Net income (loss)	$ (8,804,000)	$ 1,502,000	$ (764,000)
Adjustments to reconcile net income (loss) to net cash provided by operating activities
Depreciation and amortization	11,787,000	7,832,000	5,613,000
Stock-based compensation	4,314,000	3,550,000	2,409,000
Gain on short-term investments		43,000
Loss on disposal of property and equipment	22,000	53,000	12,000
Noncash lease expense	4,591,000	3,748,000	3,192,000
Impairment of long-lived assets	1,553,000	0	0
Changes in operating assets and liabilities:
Accounts and other receivables	(1,798,000)	(353,000)	(131,000)
Inventories	(472,000)	(627,000)	(387,000)
Due from affiliate	(62,000)	52,000	173,000
Prepaid expenses and other current assets	1,087,000	(1,151,000)	11,496,000
Deposits and other assets	336,000	146,000	(326,000)
Accounts payable	623,000	1,678,000	(172,000)
Accrued expenses and other current liabilities	1,198,000	(336,000)	912,000
Salary and wages payable	715,000	1,640,000	1,343,000
Operating lease liabilities	206,000	(113,000)	(61,000)
Due to affiliate	2,000	65,000	14,000
Sales tax payable	314,000	335,000	371,000
Net cash provided by operating activities	15,612,000	18,064,000	23,694,000
Cash flows from investing activities
Payments for property and equipment	(44,251,000)	(39,068,000)	(26,766,000)
Payments for initial direct costs	(432,000)	(550,000)	(510,000)
Payments for purchases of liquor licenses	(275,000)	(1,743,000)	(896,000)
Purchases of short-term investments	(3,501,000)	(9,292,000)
Redemption of short- term investments	11,999,000	750,000
Net cash used in investing activities	(36,460,000)	(49,903,000)	(28,172,000)
Cash flows from financing activities
Repayment of principal on finance leases	(75,000)	(498,000)	(975,000)
Taxes paid on vested restricted stock awards	(280,000)		(154,000)
Proceeds from stock option exercises	2,492,000	1,957,000	959,000
Proceeds from the follow-on public offering, net of discounts and commissions		64,895,000
Payments of costs related to the follow-on offering		(600,000)
Net cash provided by (used in) financing activities	2,137,000	65,754,000	(170,000)
(Decrease) increase in cash and cash equivalents	(18,711,000)	33,915,000	(4,648,000)
Cash and cash equivalents, beginning of year	69,697,000	35,782,000	40,430,000
Cash and cash equivalents, end of year	50,986,000	69,697,000	35,782,000
Supplemental disclosures of cash flow information
Cash paid for income taxes (net of refunds)	265,000	108,000	206,000
Noncash investing activities
Acquisition of finance leases	34,000	61,000	34,000
Amounts unpaid for purchases of property and equipment	2,758,000	$ 1,621,000	$ 1,933,000
Stock-based compensation capitalized to property and equipment, net	$ 218,000