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Acquisition of Bankingport, Inc. (Details) - USD ($)
 3 Months Ended
Jan. 02, 2016
Mar. 31, 2016
Dec. 31, 2015
Mar. 31, 2015
Business Acquisition [Line Items]        
Shares issued pursuant to acquisition   $ 1,500,000    
Goodwill   $ 67,528,000 $ 65,835,000 $ 65,835,000
Bankingport [Member]        
Business Acquisition [Line Items]        
Total purchase price $ 2,200,000      
Payments for acquisition $ 700,000      
Shares issued pursuant to acquisition, shares 79,012      
Shares issued pursuant to acquisition $ 1,500,000      
Payment for purchase of office space 1,100,000      
Goodwill 1,700,000      
Other amortizable intangible assets $ 700,000