Related Party Transactions	12 Months Ended
May 31, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Note 7. RELATED PARTY TRANSACTIONS Transactions with Warren F. Kruger, Chairman Yorktown Management & Financial Services, LLC (“Yorktown”), an entity wholly owned by Greystone’s CEO and President, owns and rents to Greystone (1) grinding equipment used to grind raw materials for Greystone’s pallet production and (2) extruders for pelletizing recycled plastic into pellets for resale and for use as raw material for manufacturing pallets. Greystone compensates Yorktown for the use of equipment as discussed below. Rental fees. GSM pays weekly rental fees of $27,500 to Yorktown for grinding equipment and pelletizing equipment. Total rental fees of approximately $1,430,000 were paid in both fiscal years 2019 and 2018. Yorktown provides administrative office space for Greystone in Tulsa, Oklahoma under a five-year lease at a monthly rental of $4,000 per month. Total rent expense was $48,000 each in fiscal years 2019 and 2018. At May 31, 2019, future minimum payments under the non-cancelable operating lease are $48,000 for fiscal years 2020 and 2021 and $28,000 for fiscal year 2022. Transactions with TriEnda Holdings, L.L.C. TriEnda Holdings, L.L.C. (“TriEnda”) is a manufacturer of plastic pallets, protective packaging and dunnage utilizing thermoform processing of which Warren F. Kruger, Greystone’s President and CEO, is the non-executive chairman of the board of directors of Kruger Brown Holdings, LLC (“KBH”), which owns a majority interest in TriEnda. Mr. Kruger’s net interest through KBH is not a majority ownership interest in TriEnda. Greystone purchases certain pallet designs produced by TriEnda for resale. During fiscal year 2019 and 2018, Greystone purchases from TriEnda totaled $42,349 and $68,302, respectively. Transactions with Green Plastic Pallets Green Plastic Pallets (“Green”) is an entity owned by James Kruger, a brother to Warren Kruger, Greystone’s President and CEO. Green purchased pallets from Greystone totaling $225,600 and $421,965 in fiscal years 2019 and 2018, respectively. At May 31, 2019, Green owed $38,760 to Greystone.

Related Party Transactions

12 Months Ended

May 31, 2019

Note 7. RELATED PARTY TRANSACTIONS

Transactions with Warren F. Kruger, Chairman

Yorktown Management & Financial Services, LLC (“Yorktown”), an entity wholly owned by Greystone’s CEO and President, owns and rents to Greystone (1) grinding equipment used to grind raw materials for Greystone’s pallet production and (2) extruders for pelletizing recycled plastic into pellets for resale and for use as raw material for manufacturing pallets. Greystone compensates Yorktown for the use of equipment as discussed below.

Rental fees. GSM pays weekly rental fees of $27,500 to Yorktown for grinding equipment and pelletizing equipment. Total rental fees of approximately $1,430,000 were paid in both fiscal years 2019 and 2018.

Yorktown provides administrative office space for Greystone in Tulsa, Oklahoma under a five-year lease at a monthly rental of $4,000 per month. Total rent expense was $48,000 each in fiscal years 2019 and 2018. At May 31, 2019, future minimum payments under the non-cancelable operating lease are $48,000 for fiscal years 2020 and 2021 and $28,000 for fiscal year 2022.

Transactions with TriEnda Holdings, L.L.C.

TriEnda Holdings, L.L.C. (“TriEnda”) is a manufacturer of plastic pallets, protective packaging and dunnage utilizing thermoform processing of which Warren F. Kruger, Greystone’s President and CEO, is the non-executive chairman of the board of directors of Kruger Brown Holdings, LLC (“KBH”), which owns a majority interest in TriEnda. Mr. Kruger’s net interest through KBH is not a majority ownership interest in TriEnda. Greystone purchases certain pallet designs produced by TriEnda for resale. During fiscal year 2019 and 2018, Greystone purchases from TriEnda totaled $42,349 and $68,302, respectively.

Transactions with Green Plastic Pallets

Green Plastic Pallets (“Green”) is an entity owned by James Kruger, a brother to Warren Kruger, Greystone’s President and CEO. Green purchased pallets from Greystone totaling $225,600 and $421,965 in fiscal years 2019 and 2018, respectively. At May 31, 2019, Green owed $38,760 to Greystone.