Financial Statements Schedules Schedule II. Parent Company Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Net loss	$ (28,336)	$ (11,609)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Income (Loss) from Equity Method Investments	2,499	(2,115)
Proceeds from Equity Method Investment, Distribution	780	0
Stock-based compensation (benefit) expense, net of forfeitures	(1,661)	1,186
Gain (Loss) on Sale of Equity Investments	(381)	0
Other, net	2,745	5,133
Net cash used in operating activities	(10,143)	(14,404)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of equity investments	(1,211)	(338)
Proceeds from Sale of Available-for-sale Securities, Equity	5,094	3,754
Proceeds from Sale and Maturity of Other Investments	1,642	2,272
Net cash provided by (used in) investing activities	20,048	20,101
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from issuance of common stock, net	0		$ 47
Net cash used in financing activities	(4,090)	2,172
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	31,578	20,362	31,481
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	31,578	20,362	31,481
Corporate Segment [Member]
Net loss	(28,336)	(11,609)
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Equity in net loss of subsidiaries	25,269		10,164
Income (Loss) from Equity Method Investments	2,499	(2,115)	(2,115)
Proceeds from Equity Method Investment, Distribution	780	0
Gain (Loss) on Sale of Equity Investments	211	0
Other, net	138		(404)
Net cash used in operating activities	(1,100)		(2,778)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of equity investments	0		(630)
Proceeds from Sale of Available-for-sale Securities, Equity	215	0
Proceeds from Sale and Maturity of Other Investments	1,001	0
Net cash provided by (used in) investing activities	1,216		(630)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Capital contributions to subsidiaries	(45)		(7,326)
Net cash used in financing activities	(45)		(7,373)
Net increase (decrease) in cash and cash equivalents	71		(10,781)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	759	688	11,469
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 759	$ 688	$ 11,469