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Investment Securities - Additional Information (Detail) (USD $)
 12 Months Ended 3 Months Ended 3 Months Ended 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2011
Maryland Financial Bank stock
Mar. 31, 2011
Securities
Dec. 31, 2013
Securities
Security
Mar. 31, 2011
Corporate Trust Preferred
Dec. 31, 2013
Corporate Trust Preferred
Dec. 31, 2011
Corporate Trust Preferred
Schedule of Available-for-sale Securities [Line Items]                  
Write-down of investment $ 15,581   $ 91,928 $ 70,000     $ 21,928 $ 15,581 $ 21,928
Impairment of investments net present value         635,228        
Assumed future inputs net default basis points rate             This testing assumed future defaults on the currently performing financial institutions of 75 basis points applied annually with a 15% recovery after a two year lag on both current and future defaulting financial institutions. This testing assumed future defaults on the currently performing financial institutions of 150 basis points applied annually with a 0% recovery on both current and future defaulting financial institutions. At year-end, the Company retested for possible OTTI by using a more stringent test by recalculating the net present value using a default rate of 150 basis points applied annually with a 0% recovery.
Number of securities continuous unrealized loss position more than twelve months           10      
Proceeds from sales of available for sale securities 25,626,845 18,656,622 21,796,185            
Realized gain on sale 664,269 282,069 434,113            
Realized loss on sale 318,938 119,475 25,467            
Income tax expense relating to net gains on sales of investment securities $ 136,216 $ 64,135 $ 161,190