Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

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Summary of Significant Accounting Policies (Details) - USD ($)
6 Months Ended
May 31, 2017
May 16, 2017
Mar. 17, 2017
Nov. 30, 2016
Summary of Significant Accounting Policies (Textual)        
Outstanding warrants to purchase of common stock 14,871,098      
Offering costs $ 5,578,000      
Underwriter discounts 4,948,000      
Deferred offering costs 1,725,000      
Issuance of stock 1,061,640      
Issuance of unit purchase option 781,000      
Charged to additional paid in capital 631,000      
Shareholders' equity $ 5,000,003     $ 5,000,005
Shares subject to redemption 6,274,073     6,293,168
Public shares 6,900,610      
Working capital expenses   $ 165,000 $ 55,000