Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Schedule of Short-Term Investments) (Details)

v3.3.1.900
Summary of Significant Accounting Policies (Schedule of Short-Term Investments) (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost $ 500,000 $ 5,198,878
Gross unrealized gains $ 483 810,116
Gross unrealized losses 6,572
Estimated fair value $ 500,483 6,002,422
Certificates of deposit [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost 500,000 1,099,775
Gross unrealized gains $ 483 $ 1,168
Gross unrealized losses
Estimated fair value $ 500,483 $ 1,100,943
Municipal bonds [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost   $ 536,046
Gross unrealized gains  
Gross unrealized losses   $ 6,572
Estimated fair value   529,474
Corporate fixed income bonds [Member]    
Schedule of Held-to-maturity Securities [Line Items]    
Amortized cost   3,563,057
Gross unrealized gains   $ 808,948
Gross unrealized losses  
Estimated fair value   $ 4,372,005