Fair Value Measurement Schedule Of Carrying Value And Fair Value Of Financial Assets Disclosed (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash	$ 19,501,886	$ 23,626,761
Cost-basis investments	0	0
Accrued dividends and interest	981,541	1,006,698
Total Financial Assets	20,483,427	24,633,459
Contingent consideration		0
Total Financial Liabilities		0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash	0	0
Cost-basis investments	0	0
Accrued dividends and interest	0	0
Total Financial Assets	0	0
Contingent consideration		0
Total Financial Liabilities		0
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash	0	0
Cost-basis investments	2,600,961	2,069,302
Accrued dividends and interest	0	0
Total Financial Assets	2,600,961	2,069,302
Contingent consideration		341,250
Total Financial Liabilities		341,250
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash	19,501,886	23,626,761
Cost-basis investments	2,498,327	1,927,429
Accrued dividends and interest	981,541	1,006,698
Total Financial Assets	22,981,754	26,560,888
Contingent consideration		341,250
Total Financial Liabilities		341,250
Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash	19,501,886	23,626,761
Cost-basis investments	2,600,961	2,069,302
Accrued dividends and interest	981,541	1,006,698
Total Financial Assets	23,084,388	26,702,761
Contingent consideration		341,250
Total Financial Liabilities		$ 341,250