Note 1 - Nature of Business, Financial Condition, Basis of Presentation and Reverse Stock Split (Tables)

3 Months Ended

Mar. 31, 2018

Notes Tables

Schedule of Cash and Cash Equivalents [Table Text Block]

	March 31,
	2018		2017
Cash and cash equivalents	$	7,029	$	20,393
Restricted cash		-		2,611
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows.	$	7,029	$	23,004