Organization and Summary of Significant Accounting Policies Summary of cash, cash equivalents, and restricted cash (Tables)

12 Months Ended

Dec. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of cash, cash equivalents and restricted cash

The table below shows the line items and amounts of cash and cash equivalents and restricted cash as reported within the Company's consolidated balance sheets for each period shown that sum to the total of the same such amounts at the end of the periods shown in the accompanying consolidated statements of cash flows.

	Year Ended December 31,
	2018		2017		2016
	(Dollars in thousands)
Cash and cash equivalents	$	42,273	$	123,546	$	30,496
Restricted cash	269		424		585
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	42,542	$	123,970	$	31,081