Condensed Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 4,043	$ 3,943
Accounts receivable, net of allowance for doubtful accounts of $115 in 2012 and 2011	3,469	3,570
Materials and supplies	689	842
Prepaid expenses and other current assets		412
Deferred income taxes	291	291
Total Current Assets	8,492	9,058
Property and Equipment, net	86,029	84,676
Land Held for Development	12,457	12,457
Total Assets	106,978	106,191
Current Liabilities:
Current portion of long term debt	123	120
Accounts payable	3,938	4,046
Current portion of deferred grant and other revenue	330	111
Accrued expenses	1,741	2,327
Total Current Liabilities	6,132	6,604
Long term debt, net of current portion	3,759	3,821
Deferred Income Taxes	11,723	12,290
Deferred Grant Income and Other Revenue	10,433	10,487
Shareholders' Equity:
Preferred stock, 10% noncumulative, $50 par value; authorized, issued and outstanding 640 shares in 2012 and 2011	32	32
Common stock, $.50 par value; authorized 15,000,000 shares; issued and outstanding 4,837,973 shares in 2012 and 4,833,012 shares in 2011	2,419	2,417
Additional paid-in capital	37,402	37,271
Retained earnings	35,078	33,269
Total Shareholders' Equity	74,931	72,989
Total Liabilities and Shareholders' Equity	$ 106,978	$ 106,191