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Stock Options (Narrative) (Details) (Stock Options [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Stock Options [Member]
 
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]  
Unrecognized stock-based compensation expense for stock options $ 1,219
Unrecognized stock-based compensation expense, stock options, upon change in control, value 61
Unrecognized stock-based compensation expense, stock options, upon change in control, shares 30
Unrecognized stock-based compensation expense, stock options, amortized for weighted average period $ 1,157
Weighted average period for amortization of unrecognized stock-based compensation, stock options 1 year 3 months 25 days