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Stock-Based Compensation Plans (Details 1) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Summary of stock option activity under the option Plan  
Shares under option outstanding beginning balance 1,501,500
Shares under option, granted   
Shares under option, exercised   
Shares under option, forfeited (61,000)
Shares under option outstanding ending balance 1,440,500
Shares under option, exercisable ending balance 874,497
Weighted average exercise price outstanding beginning balance $ 0.95
Weighted average exercise price, granted   
Weighted average exercise price, exercised   
Weighted average exercise price, forfeited $ 0.80
Weighted average exercise price outstanding ending balance $ 0.95
Weighted average exercise price, exercisable ending balance $ 1.09
Outstanding, weighted average exercise remaining contractual life 6 years 8 months 12 days
Exercisable, weighted average exercise remaining contractual life 5 years 9 months 18 days
Outstanding aggregate intrinsic value $ 43
Exercisable aggregate intrinsic value $ 32