Significant Accounting Policies Reconciliation of Cash and Restricted Cash (Tables)

12 Months Ended

Dec. 31, 2018

Accounting Policies [Abstract]

Reconciliation of Cash and Restricted Cash [Table Text Block]

	December 31,
	2018		2017		2016
Cash and cash equivalents	$	7,860	$	8,473	$	5,079
Restricted cash	7,451		3,556		4,426
Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows	$	15,311	$	12,029	$	9,505