Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY (Tables)

v3.7.0.1
STOCKHOLDERS' EQUITY (Tables)
3 Months Ended
Mar. 31, 2017
Equity [Abstract]  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
The following table summarizes information with regard to outstanding warrants to purchase common stock as of March 31, 2017.
 
 
 
Number of Shares
 
 
 
 
 
 
 
 
Issuable Upon
 
 
 
 
 
 
 
 
Exercise of
 
 
 
 
 
 
 
 
Outstanding
 
 
Exercise
 
 
 
Offering
 
Warrants
 
 
Price
 
 
Expiration Date
 
 
 
 
 
 
 
 
 
November 2016 Public Offering Series C
 
 
4,176,850
 
 
$
1.50
 
 
November 29, 2021
April 2016 Underwritten Registered Series A
 
 
3,626,942
 
 
$
3.04
 
 
April 20, 2021
October 2015 Incremental Series A
 
 
300,006
 
 
$
2.13
 
 
October 20, 2021
October 2015 Private Placement Series A
 
 
86,365
 
 
$
2.13
 
 
April 1, 2021
October 2015 Offering – Placement Agent
 
 
3,750
 
 
$
28.30
 
 
October 1, 2020
August 2014 Public Offering (1)
 
 
504,019
 
 
$
46.80
 
 
August 20, 2019
February 2013 Public Offering (1)
 
 
38,750
 
 
$
1.50
(2)
 
February 20, 2018
February 2013 Public Offering – Placement Agents
 
 
3,854
 
 
$
125.00
 
 
February 4, 2018
November 2012 Private Placement
 
 
5,000
 
 
$
250.00
 
 
November 2, 2017
June 2012 Public Offering
 
 
14,910
 
 
$
250.00
 
 
June 13, 2017
Total
 
 
8,760,446
 
 
 
 
 
 
 
 
(1)
These warrants have a certain type of cash settlement feature or their exercise prices for which the warrant may be exercised are subject to adjustment for “down-rounds” and the warrants have been accounted for as derivative instruments as described in Note 3, with the exception of 9,704 warrants issued in August 2014.
 
(2)
Due to the issuance of common stock at $1.50 per share as part of the November 2016 Underwritten Offering, the remaining outstanding warrants issued as part of the February 2013 Public Offering were adjusted to reflect the revised exercise price of $1.50 each.
Reserved For Future Issuance Upon Exercise Of Stock Options And Warrants Or Conversion Of Debt Text Block [Table Text Block]
The following shares were reserved for future issuance upon exercise of stock options, preferred stock conversions and warrants:
 
 
 
March 31,
 
December 31,
 
 
 
2017
 
2016
 
 
 
 
 
 
 
Warrants
 
 
8,760,446
 
 
10,716,952
 
Preferred stock
 
 
 
 
1,133,339
 
Stock options
 
 
508,733
 
 
471,433
 
Total number of shares reserved for future issuance
 
 
9,269,179
 
 
12,321,724