Annual report pursuant to Section 13 and 15(d)

Consolidated Balance Sheets (Parenthetical)

v3.19.2
Consolidated Balance Sheets (Parenthetical) - $ / shares
May 31, 2019
May 31, 2018
Statement of Financial Position [Abstract]    
Common stock subject to possible redemption, par value $ 0.0001 $ 0.0001
Common stock subject to possible redemption, shares 0 4,560,757
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, authorized 1,000,000 1,000,000
Preferred stock, issued
Preferred stock, outstanding
Common stock, par value $ 0.0001 $ 0.0001
Common stock, authorized 20,000,000 20,000,000
Common stock, issued 7,003,975 2,252,743
Common stock, outstanding 7,003,975 2,252,743