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Share-Based Payments (Tables)
 12 Months Ended
Dec. 31, 2012
Shareholders' Equity and Share-based Payments [Abstract]  
Share-based Compensation - Black-Scholes assumptions
In applying the Black-Scholes methodology to the options granted, the Company used the following assumptions:
 
Year ended December 31,
 
2012
 
2011
Risk-free interest rate, average
1.3%
 
1.6%
Expected option life, average
7.2 years
 
7.15 years
Expected price volatility, average
51.4%
 
51.9%
Expected dividend yield
—%
 
—%
Schedule of Share-based Compensation, Stock Options, Activity
The following table shows the stock option activity:
 
Number of Shares
 
Weighted Average Exercise Price
 
Weighted Average Remaining Contractual Term (Years)
 
Aggregate Intrinsic Value
Outstanding at December 31, 2011
1,160,933

 
$
4.50

 
 
 
 
Granted
187,000

 
4.06

 
 
 
 
Expired and canceled
(12,440
)
 
4.93

 
 
 
 
Forfeited prior to vesting
(38,341
)
 
4.23

 
 
 
 
Exercised
(159,869
)
 
3.07

 
 
 
 
Outstanding at December 31, 2012
1,137,283

 
$
4.63

 
5.47
 
$
256

Vested and expected to vest at December 31, 2012
1,137,283

 
$
4.63

 
5.47
 
$
256

Vested at December 31, 2012
853,350

 
$
4.71

 
4.26
 
$
232
Schedule of Nonvested Share Activity