Note 3 - Summary of Significant Accounting Policies (Details Textual) - USD ($) shares in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Net Income (Loss) Attributable to Parent, Total	$ (27,882)	$ (42,817)	$ (69,486)	$ (52,680)	$ (91,610)	$ (25,984)	$ (27,824)	$ (37,861)	$ (192,865)	$ (183,279)
Working Capital (Deficit)	248,303								248,303
Retained Earnings (Accumulated Deficit), Ending Balance	(41,386,696)				(41,193,831)				(41,386,696)	(41,193,831)
Accounts Receivable, after Allowance for Credit Loss, Total	$ 0				$ 0				0	$ 0
Weighted Average Number Diluted Shares Outstanding Adjustment, Total										0
Hardware [Member}
Revenue from Contract with Customer, Including Assessed Tax									0	$ 0
Software [Member]
Revenue from Contract with Customer, Including Assessed Tax									0	0
Digital Watermarketing Software Usage [Mmember]
Revenue from Contract with Customer, Including Assessed Tax									$ 0	$ 0