Note 10 - Loss Per Common Share (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Six months ended June 30,
	2018			2019
Income:
Loss attributable to common shareholders		(6,624	)		(628	)
Less: Deemed dividend for beneficial conversion feature of Series E Shares		-			(9,339	)
Less: Dividend equivalents on Series E Shares related to redemption value		-			(4,223	)
Less: Dividend of Series E Shares		-			(1,029	)
Loss attributable to common shareholders		(6,624	)		(15,219	)
Loss per share:
Weighted average common shares outstanding, basic		781,027			1,313,102
Effect of dilutive securities:
2014 Warrants		-			-
Series E Shares		-			-
Weighted average common shares outstanding, diluted		781,027			1,313,102
Loss per share, basic and diluted		(8.48	)		(11.59	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Six months ended June 30,
	2018		2019
2014 Warrants		-		71,533
Series E Shares		-		1,135,488
Potentially dilutive securities		-		1,207,021