Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v2.4.0.8
Income Taxes (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Tax Contingency [Line Items]        
Unrecognized Tax Expense $ 191,000   $ 191,000  
New unrecognized tax benefits 507,000   507,000  
Unrecognized tax benefits, reduction resulting from audit closures and expiration statute of limitations     315,000  
Income Taxes (Textual) [Abstract]        
Provision for income tax 3,500,000 2,300,000 9,600,000 5,000,000
Effective tax rate 31.20% 26.50% 30.70% 26.50%
Deduction benefited effective tax rate, research and development     6.00%  
United States [Member]
       
Income Tax Contingency [Line Items]        
Open tax examination years     2009 through 2013  
Minimum [Member]
       
Income Tax Contingency [Line Items]        
Tax positions for which it is reasonably possible that the total amount could change 0   0  
Maximum [Member]
       
Income Tax Contingency [Line Items]        
Tax positions for which it is reasonably possible that the total amount could change $ 384,555   $ 384,555  
U.S. Federal [Member]
       
Income Tax Contingency [Line Items]        
Open tax examination years     2011 through 2013  
Significant foreign jurisdictions [Member]
       
Income Tax Contingency [Line Items]        
Open tax examination years     2009 through 2013