Leases - Lease liabilities (Details) $ in Thousands	6 Months Ended
	May 31, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 86
Variable lease costs	64
Total lease expense	$ 150
Office Space [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Existence of Option to Extend [true false]	false