Note 8 - Leases - Components of Operating Lease Expense (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Operating lease expenses	$ 1,151
Short-term lease expenses (1)	814	[1]
Variable lease cost not included in the lease liability (2)	32	[2]
Total lease expense	$ 1,997

[1] Short-term lease expenses include rent expenses from leases of 12 months or less on the transition date or lease commencement.

[2] Variable lease cost includes common area maintenance, property taxes, and fluctuations in rent due to a change in an index or rate.