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EQUITY (Tables)
9 Months Ended
Sep. 30, 2013
Equity [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
A summary of stock option activity for the nine months ended September 30, 2013 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, 2012
 
1,311,397

 
$
5.20

 
 
 
 
Granted
 
192,485

 
$
6.79

 
 
 
 
Exercised
 

 
$

 
 
 
 
Forfeited or expired
 

 
$

 
 
 
 
Outstanding at September 30, 2013
 
1,503,882

 
$
5.41

 
4.0 years
 
$
1,632

Exercisable at September 30, 2013
 
1,107,159

 
$
4.78

 
3.1 years
 
$
1,616

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The fair value of the options granted was estimated on the grant date using the Black-Scholes option-pricing model with the following weighted average assumptions:
        
Risk-free interest rate
 
1.7
%
Expected term of options
 
6.7 years

Expected annual volatility
 
58
%
Expected dividend yield
 
0.5
%
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 the three and nine month periods ended September 30, 2012 and 2013 was as follows:

 
 
Nine months ended September 30,
 
Three months ended September 30,
 
 
2012
 
2013
 
2012
 
2013
Cost of sales
 
$

 
$
44

 
$

 
$
44

Research and development expenses, net of credits
 
68

 
31

 
68

 
10

Selling, general and administrative expenses
 
522

 
907

 
340

 
329

   Total stock-based compensation expense
 
$
590

 
$
982

 
$
408

 
$
383

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, 2012
 
28,750

 
$
3.68

 
 
Granted
 

 
 
 
 
Exercised
 
(2,954
)
 
$
3.68

 
 
Forfeited or expired
 
(2,796
)
 
$
3.68

 
 
Outstanding at September 30, 2013
 
23,000

 
$
3.68

 
2.2 years