Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 6,414	$ 2,614
Accounts receivable, net of allowance for doubtful accounts of $160 in 2014 and 2013	5,007	5,727
Materials and supplies	1,067	1,308
Prepaid expenses and other current assets	634	508
Deferred income taxes	399	353
Total Current Assets	13,521	10,510
Property and Equipment, net	85,955	85,571
Land Held for Development	12,457	12,457
Total Assets	111,933	108,538
Current Liabilities:
Accounts payable	3,872	3,745
Current portion of deferred grant and other revenue	230	239
Accrued expenses	1,810	1,677
Total Current Liabilities	5,912	5,661
Deferred Income Taxes	13,623	13,638
Deferred Grant and Other Revenue	12,986	12,477
Shareholders' Equity:
Preferred stock, 10% noncumulative, $50 par value; authorized, issued and outstanding 640 shares in 2014 and 2013	32	32
Common stock, $.50 par value; authorized 15,000,000 shares; issued and outstanding 4,859,871 shares in 2014 and 4,850,014 shares in 2013	2,430	2,425
Additional paid-in capital	37,891	37,635
Retained earnings	39,059	36,670
Total Shareholders' Equity	79,412	76,762
Total Liabilities and Shareholders' Equity	$ 111,933	$ 108,538