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Share-Based Compensation Plan Narrative (Details) (USD $)
3 Months Ended 12 Months Ended 3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
share_based_compensation_plan
Dec. 31, 2013
2006 Equity Compensation Plan [Member]
Dec. 31, 2012
2006 Equity Compensation Plan [Member]
Mar. 31, 2014
2006 Equity Compensation Plan [Member]
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of plans   1      
Number of shares authorized (in shares)     430,000 255,000  
Number of additional shares authorized     175,000    
Share based compensation expense $ 96,000        
Restricted stock nonvested outstanding, Weighted average remaining contractual terms         3 years 8 months 23 days
Unrecognized compensation expense related to nonvested restricted stock awards         1,300,000
Aggregate intrinsic value of options exercised $ 22,000