Note 15 - Supplemental Cash Flow Information (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Reconciliation of Cash, Cash Equivalents, and Restricted Cash [Table Text Block]

	March 31,
	2019		2018
Cash and cash equivalents	$	22,845	$	5,226
Restricted cash		1,632		11,814
Total cash, cash equivalents and restricted cash	$	24,477	$	17,040

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

	2019		2018
Supplemental Non-cash Transactions:
Capital expenditures incurred but not paid at March 31	$	3,878	$	3,820
Additions to ARO asset	$	7	$	4