Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation Plan (Narrative) (Details)

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Stock-Based Compensation Plan (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2012
Stock-Based Compensation Plan [Abstract]  
Maximum number of shares of common stock that may be granted through awards to any employee in any calendar year 500
Number of stock options issued under a plan 148
Stock options expected to vest within a year from grant date 40
Nonvested options that will vest in consequent years 108
Nonvested options that will vest on December 31, 2014 43
Stock options granted fair value $ 690
Unvested stock options 753
Unrecognized compensation cost related to unvested stock options 2,089
Unvested restricted stock awards 750
Unrecognized compensation cost related to unvested restricted stock awards $ 330