Goodwill And Other Intangible Assets (Components Of Identified Intangible Assets) (Details) (USD $)	9 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Goodwill And Other Intangible Assets [Line Items]
Net Identified Intangible Assets	$ 18,658,397	$ 20,215,961
Accumulated Amortization	9,320,048	7,762,484
Gross Carrying Amount	27,978,445	27,978,445
Customer Relationships [Member]
Goodwill And Other Intangible Assets [Line Items]
Accumulated Amortization	6,560,072	5,522,504
Gross Carrying Amount	19,378,445	19,378,445
Customer Relationships [Member] | Minimum [Member]
Goodwill And Other Intangible Assets [Line Items]
Useful Lives (In Years)	14 years
Customer Relationships [Member] | Maximum [Member]
Goodwill And Other Intangible Assets [Line Items]
Useful Lives (In Years)	15 years
Regulatory Rights [Member]
Goodwill And Other Intangible Assets [Line Items]
Accumulated Amortization	1,266,657	1,066,659
Gross Carrying Amount	4,000,000	4,000,000
Useful Lives (In Years)	15 years
Non-Competition Agreement [Member]
Goodwill And Other Intangible Assets [Line Items]
Accumulated Amortization	759,985	639,988
Gross Carrying Amount	800,000	800,000
Useful Lives (In Years)	5 years
Trade Name [Member]
Goodwill And Other Intangible Assets [Line Items]
Accumulated Amortization	733,334	533,333
Gross Carrying Amount	800,000	800,000
Useful Lives (In Years)	3 years
Video Franchise [Member]
Goodwill And Other Intangible Assets [Line Items]
Accumulated Amortization	0	0
Gross Carrying Amount	$ 3,000,000	$ 3,000,000