Note 4 - Financial Statement Details - Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Accounts payable	$ 8,192	$ 14,633
Foreign currency forward contract liability	6,909	1,300
Accrued other expense	5,996	8,348
Employee liability	3,958	3,712
Refunds and commissions payable	2,697	1,873
Bonus compensation liability	2,697	5,322
Travel certificate liability	870	888
Accrued travel insurance expense	270	477
Royalty payable	222	1,075
Income tax liabilities	0	603
Total accounts payable and accrued expenses	$ 31,811	$ 38,231