XML 23 R28.htm IDEA: XBRL DOCUMENT v2.4.0.6
EMPLOYEE STOCK OPTION PLANS (Tables)
12 Months Ended
Dec. 31, 2012
EMPLOYEE STOCK OPTION PLANS [Abstract]  
Weighted-average assumptions used for options granted
The estimated fair value of each option award granted was determined on the date of grant using the Black-Scholes option valuation model. The following weighted average assumptions were used for option grants during the years ended December 31, 2012, 2011 and 2010:

 
2012
2011
2010
Risk-free interest rate
0.90%
2.08%
2.55%
Expected volatility
101.8%
100.9%
97.0%
Dividend yield
0%
0%
0%
Expected option term-in years
5
5
5
Stock option activity
A summary of the status of the Company's stock option plans is as follows:
Fixed Options
Optionssns
Weighted
average
Exercise
Price
Weighted
average
remaining
contractual
term
(in years)
Aggregate
Intrinsic
Value

Outstanding
       
at January 1, 2010
1,052,333
$6.47
3.91
 
Granted during period
80,000
7.38
   
Exercised
(272,000)
5.11
   
Forfeited/Expired
(80,000)
10.01
   
Outstanding
       
at December 31, 2010
780,333
$6.68
2.92
 
Granted during period
80,000
14.90
   
Exercised
(165,333)
3.72
   
Forfeited/Expired
---
---
   
Outstanding
       
at December 31, 2011
695,000
$8.33
2.66
 
Granted during period
40,517
11.87
   
Exercised
(240,000)
6.85
   
Forfeited/Expired
---
---
   
Outstanding and expected to vest
       
at December 31, 2012
495,517
9.33
2.73
858,997
         
Vested
       
at December 31, 2012
495,517
9.33
2.73
858,997