Note 4 - Financial Statement Details - Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Accrued other expense	$ 10,777	$ 8,348
Refunds and commissions payable	9,773	1,873
Accounts payable	7,939	14,633
Foreign currency forward contract liability	5,922	1,300
Bonus compensation liability	4,906	5,322
Employee liability	3,603	3,712
Royalty payable	1,171	1,075
Travel certificate liability	870	888
Income tax liabilities	592	603
Accrued travel insurance expense	477	477
Total accounts payable and accrued expenses	$ 46,030	$ 38,231