Net Income (Loss) per Share (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Basic and Diluted Net Income (Loss) per Share

The following table sets forth the calculation of basic and diluted net income (loss) per share attributable to common stockholders during the periods presented:



	Three Months Ended March 31,
(in thousands, except per share data)	2018			2017
Numerator:
Net income (loss)	$	2,916		$	(1,213	)
Participating securities:
Income allocated to participating securities	(2,916		)	—
Net income (loss) attributable to common stockholders	—			(1,213		)

Denominator:
Weighted-average common shares outstanding, basic and diluted	3,031			2,600
Net income (loss) per share:
Net income (loss) per share attributable to common stockholders, basic and diluted	$	0.00		$	(0.47	)

Schedule of Potentially Dilutive Shares Not Included in Calculation of Diluted Shares

The following potentially dilutive shares of convertible preferred stock, preferred stock warrants, and stock options were not included in the calculation of diluted shares above as the effect would have been anti‑dilutive:



	Three Months Ended March 31,
(in thousands)	2018	2017
Convertible preferred stock	24,642	19,837
Preferred stock warrants	214	214
Stock options to purchase common stock	5,630	4,382
Total	30,486	24,433