Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2019
May 27, 2020
Document And Entity Information    
Entity Registrant Name GREY CLOAK TECH INC.  
Entity Central Index Key 0001630176  
Document Type 10-Q  
Document Period End Date Jun. 30, 2019  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Is Entity's Reporting Status Current? No  
Entity Filer Category Non-accelerated Filer  
Entity Common Stock, Shares Outstanding   250,859,759
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2019  
Entity Shell Company false  
Entity Emerging Growth Company true  
Entity Small Business true  
Entity Ex Transition Period false  
Entity Interactive Data Current Yes  
Entity Incorporation, State or Country Code NV  
Entity File Number 000-55572  
Document Quarterly Report true