Consolidated Balance Sheets (Unaudited) - USD ($)	Aug. 31, 2017	May 31, 2017
Current Assets:
Cash	$ 1,159,974	$ 579,021
Accounts receivable - Trade, net of allowance for doubtful accounts of $31,660 at August 31, 2017 and May 31, 2017	2,428,966	6,160,145
Related party receivables	36,750	73,578
Inventory	2,829,086	1,587,552
Prepaid expenses	59,412	136,395
Total Current Assets	6,514,188	8,536,691
Property and Equipment, net	20,967,523	19,706,782
Deferred Tax Asset	77,615	281,415
Total Assets	27,559,326	28,524,888
Current Liabilities:
Current portion of long-term debt	2,710,820	2,493,236
Current portion of capital lease	2,245,129	2,261,560
Accounts payable and accrued expenses	3,707,307	5,727,903
Accrued expenses - related parties	57,917	29,076
Preferred dividends payable	31,849	29,726
Total Current Liabilities	8,753,022	10,541,501
Long-Term Debt, net of current portion	16,278,947	15,310,754
Capital Lease, net of current portion	1,002,466	1,532,503
Equity:
Preferred stock, $0.0001 par value, cumulative, 20,750,000 shares authorized, 50,000 shares issued and outstanding, liquidation preference of $5,000,000	5	5
Common stock, $0.0001 par value, 5,000,000,000 shares authorized, 28,361,201 shares issued and outstanding	2,836	2,836
Additional paid-in capital	53,790,764	53,790,764
Accumulated deficit	(53,350,283)	(53,724,991)
Total Greystone Stockholders' Equity	443,322	68,614
Non-controlling interest	1,081,569	1,071,516
Total Equity	1,524,891	1,140,130
Total Liabilities and Equity	$ 27,559,326	$ 28,524,888

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.