Note 1 - Organization and Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2020

Notes Tables

Schedule of Cash and Cash Equivalents [Table Text Block]

	Three Months Ended March 31,
	2020		2019
	(Dollars in thousands)
Cash and cash equivalents	$	87,863	$	41,874
Restricted cash		424		116
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	88,287	$	41,990