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Fair Value of Financial Instruments (Schedule of Fair Value of Financial Instruments by Level in Hierarchy and Narrative) (Details) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities $ 16,686,136  
Marketable securities 16,686,136 0
Level 1
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 9,483,596  
Level 2
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 7,202,540  
U.S. Treasury Notes and Bonds
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 2,473,596  
U.S. Treasury Notes and Bonds | Level 1
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 2,473,596  
U.S. Treasury Notes and Bonds | Level 2
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 0  
U.S. Agency Issued Mortgage-backed Securities - Variable Rate
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 3,708,920  
U.S. Agency Issued Mortgage-backed Securities - Variable Rate | Level 1
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 0  
U.S. Agency Issued Mortgage-backed Securities - Variable Rate | Level 2
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 3,708,920  
U.S. Agency Notes and Bonds - Fixed Rate
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 1,505,177  
U.S. Agency Notes and Bonds - Fixed Rate | Level 1
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 0  
U.S. Agency Notes and Bonds - Fixed Rate | Level 2
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 1,505,177  
SBA Loan Pools - Variable Rate
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 1,988,443  
SBA Loan Pools - Variable Rate | Level 1
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 0  
SBA Loan Pools - Variable Rate | Level 2
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 1,988,443  
Municipal Bonds - VRDN
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 7,010,000  
Municipal Bonds - VRDN | Level 1
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities 7,010,000  
Municipal Bonds - VRDN | Level 2
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of marketable securities $ 0