Related Party Transactions	3 Months Ended
Aug. 31, 2016
Related Party Transactions [Abstract]
Related Party Transactions	Note 5. Related Party Transactions Yorktown Management & Financial Services, LLC 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 in the manufacture of pallets. GSM pays weekly rental fees to Yorktown of $22,500 for use of Yorktown’s grinding equipment and $5,000 for the use of Yorktown’s pelletizing equipment. GSM paid Yorktown total equipment rental fees of $385,000 and $357,500 for the three months ended August 31, 2016 and 2015, respectively. In addition, Yorktown provides office space for Greystone in Tulsa, Oklahoma at a monthly rental of $2,200. TriEnda Holdings, L.L.C. TriEnda Holdings, L.L.C. (“TriEnda”) is a manufacturer of plastic pallets, protective packing and dunnage utilizing thermoform processing for which Warren F. Kruger, Greystone’s president and CEO, serves TriEnda as the non-executive Chairman of the Board and is a partner in a partnership which has a majority ownership interest. Greystone charges a tolling fee for blending and pelletizing plastic resin using TriEnda’s equipment and raw materials. Revenue from TriEnda totaled $187,002 and $3,113 for the three months ended August 31, 2016 and 2015, respectively. The account receivable from TriEnda at August 31, 2016 was $71,342. The tolling service provided by Greystone generates a certain amount of scrap material which is purchased by Greystone. Purchases for the three months ended August 31, 2016 and 2015 totaled $8,905 and $-0-, respectively. Greystone had accounts payable to TriEnda of $7,628 at August 31, 2016. Green Plastic Pallets Greystone sells plastics pallets to Green Plastic Pallets (“Green”), an entity that is owned by James Kruger, brother to Warren F. Kruger, Greystone’s president and CEO. Greystone had sales to Green of $18,365 and $55,080 for the three months ended August 31, 2016 and 2015, respectively. As of August 31, 2016, Greystone had an account receivable of $56,908 from Green.

Related Party Transactions

3 Months Ended

Aug. 31, 2016

Note 5. Related Party Transactions

Yorktown Management & Financial Services, LLC

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 in the manufacture of pallets. GSM pays weekly rental fees to Yorktown of $22,500 for use of Yorktown’s grinding equipment and $5,000 for the use of Yorktown’s pelletizing equipment. GSM paid Yorktown total equipment rental fees of $385,000 and $357,500 for the three months ended August 31, 2016 and 2015, respectively.

In addition, Yorktown provides office space for Greystone in Tulsa, Oklahoma at a monthly rental of $2,200.

TriEnda Holdings, L.L.C.

TriEnda Holdings, L.L.C. (“TriEnda”) is a manufacturer of plastic pallets, protective packing and dunnage utilizing thermoform processing for which Warren F. Kruger, Greystone’s president and CEO, serves TriEnda as the non-executive Chairman of the Board and is a partner in a partnership which has a majority ownership interest. Greystone charges a tolling fee for blending and pelletizing plastic resin using TriEnda’s equipment and raw materials. Revenue from TriEnda totaled $187,002 and $3,113 for the three months ended August 31, 2016 and 2015, respectively. The account receivable from TriEnda at August 31, 2016 was $71,342.

The tolling service provided by Greystone generates a certain amount of scrap material which is purchased by Greystone. Purchases for the three months ended August 31, 2016 and 2015 totaled $8,905 and $-0-, respectively. Greystone had accounts payable to TriEnda of $7,628 at August 31, 2016.

Green Plastic Pallets

Greystone sells plastics pallets to Green Plastic Pallets (“Green”), an entity that is owned by James Kruger, brother to Warren F. Kruger, Greystone’s president and CEO. Greystone had sales to Green of $18,365 and $55,080 for the three months ended August 31, 2016 and 2015, respectively. As of August 31, 2016, Greystone had an account receivable of $56,908 from Green.