Stockholders' Equity

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Stockholders' Equity

Stockholders' Equity

Initial Public Offering

On March 25, 2014, the Company completed its IPO of 7,761 shares of common stock at $13.00 per share. The total shares sold in the IPO included 1,511 shares sold by selling stockholders. After deducting the payment of underwriters' discounts and commissions and offering costs, the net proceeds to the Company from the sale of shares in the offering were approximately $72.6 million. On April 2, 2014, pursuant to the terms of the Company's IPO, the underwriters exercised their option to purchase an additional 1,164 shares to cover over-allotments. After deducting the payment of underwriters' discounts and commissions and offering costs, the Company received net proceeds from the sale of shares totaling approximately $13.7 million.

Follow-On Offerings

On March 4, 2015, the Company and certain selling stockholders completed a follow-on offering of 5,122 shares of common stock at $19.75 per share, and sold an additional 768 shares of common stock at $19.75 per share when the underwriters exercised their over-allotment option to purchase additional shares. The total shares sold in the follow-on offering and shares sold when the underwriters exercised their over-allotment option included 4,133 shares sold by selling stockholders and 1,757 shares sold by the Company. After deducting the payment of underwriters' discounts and commissions and offering costs the net proceeds to the Company from the sale of shares in the offering and the sale of shares when the underwriters exercised their over-allotment option was approximately $32.3 million.

On September 30, 2015, the Company and certain selling stockholders completed a follow-on offering of 3,799 shares of common stock at $25.50 per share, and on October 15, 2015, selling stockholders sold an additional 570 shares of common stock at $25.50 per share when the underwriters exercised their over-allotment option to purchase additional shares. The total shares sold in the follow-on offering and shares sold when the underwriters exercised their over-allotment option included 3,516 shares sold by selling stockholders and 853 shares sold by the Company. After deducting the payment of underwriters' discounts and commissions and offering costs the net proceeds to the Company from the sale of shares in the offering was approximately $20.3 million.

Conversion of Redeemable Common and Preferred Stock

Immediately prior to the closing of the IPO, which occurred on March 25, 2014, each share of the Company's outstanding preferred, junior preferred and redeemable common stock was converted into one share of undesignated common stock. The following table presents the conversion of all classes of stock on March 25, 2014:

	Prior to Conversion	Subsequent to Conversion
Convertible preferred stock
Series A	7,908	—
Series B	1,818	—
Series C	2,605	—
Redeemable common stock	3,829	—
Junior preferred stock	1,251	—
Undesignated common stock	—	17,412