Net Loss Per Share

Because of the net losses in the three and six months ended June 30, 2019 and 2018, the following outstanding Company securities, using the treasury stock method, were excluded from the calculations of net loss per share because the effect would have been anti-dilutive:



	Three Months Ended June 30,		Six Months Ended June 30,
	2019	2018	2019	2018
Common stock options	—	21,290	—	25,161
Restricted stock awards	3,579	12,599	3,107	12,235
Restricted stock units	64,134	57,203	32,404	46,088
Warrants	1,522,002	647,001	1,522,002	647,001
Total	1,589,715	738,093	1,557,513	730,485

For purposes of calculating the maximum dilutive impact, it is presumed that the convertible notes will be settled in common stock and all conversion features within the term loan facility will be exercised with the resulting potential common shares included in diluted earnings per share if the effect is more dilutive. The effect of the conversion of the convertible senior notes and term loan facility is excluded from the calculation of diluted loss per share because the impact of these securities would be anti-dilutive.

The potential dilutive effect of these securities is shown in the table below:



	Six Months Ended June 30,
	2019	2018
Convertible notes	8,463,236	1,193,938
Conversion features under term loan facility	11,996,038	—

The effect of the contingently issuable common stock (see Note 9) is excluded from the calculation of basic net loss per share until all necessary conditions for issuance have been satisfied.