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Stock-Based Compensation (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock based compensation     $ 165,000 $ 135,000
Anticipated additional expense     $ 0  
Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum number of shares 793,368   793,368  
Shares available for future grants 354,090   354,090  
Stock based compensation $ 0 $ 13,000 $ 0 30,000
Incentive Equity And Deferred Compensation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum number of shares 243,101   243,101  
Share issuance, restricted sale period     1 year  
Shares available for future grants 117,714   117,714  
Stock based compensation $ 78,000 $ 52,000 $ 165,000 $ 105,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 766,000   $ 766,000  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition     2 years 15 days  
Maximum [Member] | Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum option exercise period     10 years  
Maximum [Member] | Incentive Equity And Deferred Compensation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award issuable period after date of grant     4 years  
Cliff-vesting period     4 years  
Minimum [Member] | Incentive Equity And Deferred Compensation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award issuable period after date of grant     3 years  
Cliff-vesting period     3 years