Leases - Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021	Nov. 30, 2021
Leases [Abstract]
Lease costs under long-term operating leases	$ 1,820	$ 2,009	$ 3,584	$ 4,144
Lease costs under short-term operating leases	17	4	31	19
Variable lease cost under short-term and long-term operating leases	173	35	294	150
Operating lease right-of-use asset impairment		36		36
Total operating lease cost	2,010	2,084	3,909	4,349
Cash paid for leases	2,191	2,209	4,337	4,467
Right-of-use assets recognized for new leases and amendments (non-cash)	$ 80	$ 1,309	$ 301	$ 3,647
Weighted average remaining lease term in years	3 years 8 months 23 days		3 years 8 months 23 days		4 years 1 month 24 days
Weighted average discount rate	2.60%		2.60%		2.60%