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Stock-based Compensation (Details Textual) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Employee Stock Option [Member]
Jun. 30, 2014
Restricted Stock Units (RSUs) [Member]
Jun. 30, 2014
Incentive Compensation Plan [Member]
Jun. 30, 2010
Incentive Compensation Plan [Member]
Maximum [Member]
Jun. 30, 2010
Incentive Compensation Plan [Member]
Minimum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]                  
Common Stock, Capital Shares Reserved for Future Issuance             880,000 1,630,000 750,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     555,000     149,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number 530,000   530,000            
Employee Benefits and Share-based Compensation $ 20,000 $ 20,000 $ 46,000 $ 57,000          
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period         12,000