Note 5 - Current Liabilities - Summary of Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accounts payable - trade	$ 17,739	$ 13,782
Accrued payroll, benefits, and related liabilities	9,286	14,395
Deferred capacity and other revenue	4,817	4,502
Other	4,306	5,501
Total accounts payable, accrued and other current liabilities	$ 36,148	$ 38,180