Net Loss Per Share Attributable to Common Stockholders

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

NOTE 14.  Net Loss Per Share Attributable to Common Stockholders

The following table presents the calculation of basic and diluted net loss per share (in thousands, except share and per share amounts):

	Year Ended December 31,
	2018		2017
Net loss	$	(18,007)	$	(9,582)
Series B and C preferred dividend		(339)		(2,878)
Net loss attributable to common stockholders	$	(18,346)	$	(12,460)
Shares used to compute net loss per share, basic and diluted		6,316,065		135,953
Net loss per share attributable to common stockholders, basic and diluted	$	(2.90)	$	(91.65)

No adjustment has been made to the net loss attributable to common stockholders as the effect would be anti-dilutive due to the net loss.

The following potentially dilutive securities were excluded from the computation of diluted weighted average shares outstanding because they would have been antidilutive:

	Year Ended December 31,
	2018		2017
Options to purchase common stock	839,396	295,243
Warrant to purchase common stock	9,658	—
Warrant to purchase convertible preferred stock	891	7,563
Series B and C convertible preferred stock outstanding,    including cumulative dividends	213,760	1,567,172
Series A convertible preferred stock outstanding	12,260	94,988
Convertible promissory notes, related party (as converted)	185,159	754,289
Total potentially dilutive securities excluded from   denominator of the diluted earnings per share computation	1,261,124	2,719,255