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EQUITY (Tables)
6 Months Ended
Jun. 30, 2014
Equity [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
A summary of stock option activity for the six months ended June 30, 2014 is as follows:

 
 
Number 
of Options
(in shares)
 
Weighted
Average
Exercise
Price Per Share
 
Weighted Average Remaining Contractual Life
 
Aggregate Intrinsic Value
Outstanding at December 31, 2013
 
1,401,658

 
$
5.49

 
 
 
 
Granted
 
180,988

 
$
3.77

 
 
 
 
Exercised
 
(33,938
)
 
$
2.51

 
 
 
 
Forfeited or expired
 
(76,062
)
 
$
2.51

 
 
 
 
Outstanding at June 30, 2014
 
1,472,646

 
$
5.50

 
4.4 years
 
$
5

Exercisable at June 30, 2014
 
1,047,213

 
$
5.44

 
3.6 years
 
$
5

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The fair value of the options granted ($2.49 during the six months ended June 30, 2014) was estimated on the grant dates using the Black-Scholes option-pricing model with the following weighted average assumptions:
        
Risk-free interest rate
 
2.6
%
Expected term of options
 
8.0 years

Expected annual volatility
 
62
%
Expected dividend yield
 
%
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]
Stock-based compensation expense included in the Company’s Condensed Statements of Operations for three and six month periods ended June 30, 2013 and 2014 was as follows:

 
 
Six months ended June 30,
 
Three months ended June 30,
 
 
2013
 
2014
 
2013
 
2014
Research and development expenses, net of credits
 
21

 
26

 
11

 
16

Selling, general and administrative expenses
 
578

 
594

 
307

 
262

   Total stock-based compensation expense
 
599

 
620

 
318

 
278

Changes in outstanding warrants to purchase common stock [Table Text Block]
The Company previously issued warrants at exercise prices equal to or greater than market value of the Company’s common stock at the date of issuance.  A summary of warrant activity follows:
 
 
Number 
of Warrants
(in shares)
 
Weighted
Average
Exercise
Price Per Share
 
Weighted Average Remaining Contractual Life
Outstanding at December 31, 2013
 
285,281

 
$
3.18

 
 
Granted
 

 
 
 
 
Exercised
 

 

 
 
Forfeited or expired
 

 

 
 
Outstanding at June 30, 2014
 
285,281

 
$
3.18

 
4.1 years