WARRANTS

3 Months Ended

Mar. 31, 2015

WARRANTS.

WARRANTS

11.WARRANTS

The following table presents information about warrants to purchase common stock issued and outstanding at March 31, 2015:

Year Issued	Classification	Number of Warrants	Exercise Price		Date of Expiration
2010	Equity	373,674	$	5.60	10/26/2017 — 12/3/2017
2010	Equity	326,916	$	4.00	9/26/2015 — 12/3/2015
2011	Equity	4,018	$	5.60	6/17/2018
2011	Equity	85,785	$	12.24	12/21/2016
2012	Equity	9,037	$	6.64	10/5/2019
2014	Liability	1,259,967	$	5.75	5/9/2019
Total		2,059,397
Weighted average exercise price			$	5.31
Weighted average life in years					3.44