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Schedule II - Valuation and Qualifying Accounts (Details) - Valuation Allowance of Deferred Tax Assets [Member] - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Balance at Beginning Of Period $ 26,021,943 $ 25,002,881 $ 27,295,741
Additions Charged to Costs and Expenses 1,109,091 1,019,062 862,736
Additions Charged to Other Accounts 0 0 0
Deductions [1] 0 0 (3,155,596)
Balance at End Of Period $ 27,131,034 $ 26,021,943 $ 25,002,881
[1] Deductions represent the effect of expiring NOL carryforwards from prior year.