Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 3,174,914	$ 2,027,523
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation and Amortization	8,258,486	9,049,414
Loss on Sale of Equity Investments		4,796
Undistributed Earnings of Hector Investment	(770,539)	(689,798)
Loss on Hector Communications Corporation Spin-Off	111,546
Undistributed Earnings of Other Equity Investments	(158,582)	(228,168)
Noncash Patronage Refund	(157,457)	(179,057)
Stock Issued in Lieu of Cash Payment	65,800
Distributions from Equity Investments	300,000	200,000
Changes in Assets and Liabilities:
Receivables	1,017,501	(768,365)
Income Taxes Receivable	(33,415)	(82,637)
Materials, Supplies, and Inventories	(224,434)	(238,789)
Prepaid Expenses	(88,638)	(108,219)
Deferred Charges And Other Assets		53,087
Accounts Payable	926,587	(565,928)
Other Accrued Taxes	(21,691)	16,920
Other Accrued Liabilities	(112,592)	172,530
Deferred Income Tax	(1,642,103)	661,557
Deferred Compensation	(195,370)	(670,533)
Net Cash Provided by Operating Activities	10,450,013	8,654,333
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to Property, Plant, and Equipment, Net	(7,014,135)	(4,824,204)
Cash Acquired from Spin-Off of HCC	18,150
Other, Net	(24,610)	(42,000)
Net Cash Used in Investing Activities	(7,020,595)	(4,866,204)
CASH FLOWS FROM FINANCING ACTIVITIES:
Principal Payments of Long-Term Debt	(3,698,883)	(3,208,976)
Issuance of Long-term Debt	1,191,713
Changes in Revolving Credit Facility	2,298,214	(76,829)
Dividends Paid	(1,692,329)	(1,675,310)
Net Cash Used in Financing Activities	(1,901,285)	(4,961,115)
NET INCREASE (DECREASE) IN CASH	1,528,133	(1,172,986)
CASH at Beginning of Period	1,221,717	2,394,703
CASH at End of Period	2,749,850	1,221,717
Supplemental cash flow information:
Cash paid for interest	2,175,356	2,354,014
Net cash paid for income taxes	$ 1,310,000	$ 925,000