XML 28 R19.htm IDEA: XBRL DOCUMENT v3.8.0.1
Common Stock Warrants
 12 Months Ended
Dec. 31, 2016
Text Block [Abstract]  
Common Stock Warrants

13. Common Stock Warrants

The following is a description of the common stock warrant activity of the Company:

 

(in thousands, except per share amounts)

 

Warrants

for the

Purchase of

Common Stock

 

 

Weighted

Average

Exercise

Price

 

Balance at December 31, 2013

 

 

278

 

 

$

30.50

 

Exercised

 

 

(40

)

 

$

33.80

 

Balance at December 31, 2014

 

 

238

 

 

$

30.00

 

Exercised

 

 

(235

)

 

$

30.00

 

Cancelled

 

 

(3

)

 

$

30.00

 

Balance at December 31, 2015

 

 

—

 

 

$

—

 

 

During the year ended December 31, 2014, warrants to purchase approximately 7,500 shares of common stock were cashless exercised and 3,800 shares of common stock were issued. During the year ended December 31, 2015, warrants to purchase approximately 229,500 shares of common stock were cashless exercised and 169,500 shares of common stock were issued. As of December 31, 2015, all remaining unexercised warrants for the purchase of common stock had expired and were cancelled.