Note 17 - Supplemental Cash Flow Information - Reconciliation of Cash and Cash Equivalents and Restricted Cash Reported Within the Statement of Financial Position (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash and cash equivalents	$ 13,351	$ 4,354
Restricted Cash and Cash Equivalents, Total	1,634	11,814
Total cash, cash equivalents and restricted cash	$ 14,985	$ 16,168	$ 23,145