Summary Of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Summary Of Significant Accounting Policies [Line Items]
Receivables, net of the allowance for doubtful accounts	$ 1,996,996	$ 2,430,589
Inventory	2,276,368	1,946,831
Goodwill	39,975,906	29,707,100
Useful life of definite-lived intangible assets	13 years
Advertising expense	$ 187,009	$ 209,580
Weighted average number of shares outstanding	5,123,017	5,115,435
Regulatory Rights [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life of definite-lived intangible assets	15 years
Non-Competition Agreement [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life of definite-lived intangible assets	5 years
Trade Name [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life of definite-lived intangible assets	3 years
Maximum [Member] | Customer Lists [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life of definite-lived intangible assets	15 years
Minimum [Member] | Customer Lists [Member]
Summary Of Significant Accounting Policies [Line Items]
Useful life of definite-lived intangible assets	14 years