Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
UTILITY PLANT, at original cost	$ 369,022	$ 365,767
Plant acquisition adjustments	(3,219)	(3,234)
Accumulated depreciation	(75,296)	(73,746)
Net utility plant	290,507	288,787
OTHER PHYSICAL PROPERTY, net of accumulated depreciation of $393 in 2018 and $387 in 2017	731	737
CURRENT ASSETS:
Cash and cash equivalents	2	2
Accounts receivable, net of reserves of $332 in 2018 and $305 in 2017	4,183	4,547
Unbilled revenues	2,344	2,459
Materials and supplies inventories, at cost	868	906
Prepaid expenses	957	697
Total current assets	8,354	8,611
OTHER LONG-TERM ASSETS:
Notes receivable	255	255
Deferred regulatory assets	29,848	30,331
Other assets	3,407	3,309
Total other long-term assets	33,510	33,895
Total Assets	333,102	332,030
COMMON STOCKHOLDERS' EQUITY:
Common stock, no par value, authorized 46,500,000, issued and outstanding 12,892,798 in 2018 and 12,872,742 in 2017	79,796	79,201
Retained earnings	40,652	40,204
Total common stockholders' equity	120,448	119,405
PREFERRED STOCK, authorized 500,000 shares, no shares issued	0	0
LONG-TERM DEBT, excluding current portion	77,993	90,098
COMMITMENTS
CURRENT LIABILITIES:
Short-term borrowings	1,000	1,000
Current portion of long-term debt	11,044	44
Accounts payable	3,222	3,136
Dividends payable	1,897	1,892
Accrued compensation and benefits	1,107	1,134
Accrued income taxes	938	531
Accrued interest	1,109	989
Other accrued expenses	514	419
Total current liabilities	20,831	9,145
DEFERRED CREDITS:
Customers' advances for construction	6,461	6,324
Deferred income taxes	35,143	34,754
Deferred employee benefits	6,575	7,075
Deferred regulatory liabilities	24,944	24,372
Other deferred credits	1,872	2,196
Total deferred credits	74,995	74,721
Contributions in aid of construction	38,835	38,661
Total Stockholders' Equity and Liabilities	$ 333,102	$ 332,030