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Note 1 - Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Cash and Cash Equivalents [Table Text Block]

Nine months ended September 30,		2020				2019
Cash, cash equivalents and restricted cash, beginning of period		$	268,108			$	278,629
End of the period
Cash and cash equivalents			388,024				184,673
Restricted cash			1,512				5,658
Total cash, cash equivalents and restricted cash, end of period			389,536				190,331
Net increase (decrease) in cash, cash equivalents and restricted cash		$	121,428			$	(88,298	)

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