Condensed Statements of Cash Flows (Unaudited) (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash Flows from Operating Activities:
Net income (loss)	$ 326	$ (193)
Adjustments to reconcile the net income (loss) to cash flows from operating activities:
Depreciation	2,392	2,328
Amortization of deferred grant income	(198)	(194)
(Gains) losses from sale and disposal of property, equipment and easements	(1,921)	350
Note receivable		(486)
Deferred income tax benefit	807	(98)
Share-based compensation	113	94
Increase (decrease) in cash from:
Trade receivable	(789)	(542)
Materials and supplies	(82)	177
Prepaid expenses and other	(218)	(208)
Accounts payable and accrued expenses	308	539
Net cash flows from operating activities	738	1,767
Cash flows from Investing Activities:
Purchase of property and equipment	(6,715)	(1,732)
Proceeds from note receivable	75	10
Proceeds from sale of property, equipment and easements	1,921	350
Net cash flows used in investing activities	(4,719)	(1,372)
Cash Flows from Financing Activities:
Borrowings (payments) under line of credit	(500)	1,000
Proceeds from long term debt	4,000
Repayments of long term debt	(30)
Dividends paid	(584)	(582)
Issuance of common shares for stock options exercised and employee stock purchases	93	52
Net cash flows from financing activities	2,979	470
Increase (decrease) in Cash and Cash Equivalents	(1,002)	865
Cash and Cash Equivalents, Beginning of Period	1,517	157
Cash and Cash Equivalents, End of Period	515	1,022
Supplemental Disclosures:
Cash paid for interest	104	37
Property and equipment included in accounts payable and accrued expenses	$ 391