Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	May 31, 2022	May 31, 2021
Cash Flows from Operating Activities:
Net income	$ 4,546,600	$ 3,625,526
Adjustments to reconcile net income to net cash provided by operating activities -
Depreciation and amortization	5,365,720	5,801,517
Change in deferred taxes	(636,948)	1,271,590
Forgiveness of debt	(3,068,497)
Gain on sale of assets	(22,336)
Decrease (increase) in trade and other accounts receivable	(1,571,077)	2,084,637
Increase in related party receivable	(98,562)	(59,199)
Decrease (increase) in inventory	(670,522)	761,171
Increase in prepaid expenses	(95,763)	(44,827)
Increase (decrease) in accounts payable and accrued expenses	3,990,306	(895,226)
Increase (decrease) in deferred revenue	(1,101,560)	2,637,440
Net cash provided by operating activities	6,637,361	15,182,629
Cash Flows from Investing Activities:
Purchase of property and equipment	(6,130,521)	(2,905,640)
Proceeds from sale of equipment	50,000
Net cash used in investing activities	(6,080,521)	(2,905,640)
Cash Flows from Financing Activities:
Proceeds from long-term debt	837,000
Proceeds from revolving loan	3,700,000	2,935,000
Payments on long-term debt and financing leases	(5,263,858)	(4,845,494)
Payments on related party note payable and financing lease	(436,724)	(1,019,683)
Payments on revolving loan		(5,475,000)
Payments for debt issuance costs	(4,752)
Stock options exercised	24,000
Purchase of common stock	(281,500)
Dividends paid on preferred stock	(243,082)	(407,329)
Distributions paid by non-controlling interest	(132,200)	(208,800)
Net cash used in financing activities	(1,801,116)	(9,021,306)
Net Increase (Decrease) in Cash and Cash Equivalents	(1,244,276)	3,255,683
Cash and Cash Equivalents, beginning of year	4,387,533	1,131,850
Cash and Cash Equivalents, end of year	$ 3,143,257	$ 4,387,533