CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
ASSETS
Utility plant, at original cost (less accumulated depreciation 2019 - $128,920; 2018 - $126,114)	$ 504,801	$ 498,678
Current assets
Cash and cash equivalents	265	293
Accounts receivable (less allowance for doubtful accounts 2019 - $222; 2018 - $232)	6,975	8,159
Income tax receivable	9	772
Unbilled operating revenues	1,510	1,441
Materials and supplies	1,564	1,459
Prepaid property taxes	929	1,870
Prepaid expenses and other	1,982	2,124
Total current assets	13,234	16,118
Other assets
Non utility property (less accumulated depreciation 2019-$726; 2018-$689)	3,831	3,849
Other deferred assets	4,283	3,931
Operating lease ROU asset	499	0
Total other assets	8,613	7,780
Regulatory assets, net	7,142	7,254
Total Assets	533,790	529,830
Stockholders' equity
Common stock	9,268	9,250
Preferred stock	0	0
Additional paid-in capital	101,063	100,639
Retained earnings	44,711	43,362
Total stockholders' equity	155,042	153,251
Long-term debt, net of current portion	115,352	115,862
Total stockholders' equity and long term debt	270,394	269,113
Current liabilities
Lines of credit	18,611	15,942
Current portion of long-term debt	1,827	1,725
Accounts payable	4,863	8,187
Accrued expenses	4,427	3,902
Overdraft payable	369	117
Accrued interest	1,349	784
Income tax payable	1,292	0
Customer deposits	1,057	1,044
Revenue reserved for refund	3,772	3,298
Other	2,924	2,732
Total current liabilities	40,491	37,731
Commitments and contingencies
Deferred credits and other liabilities
Net advances for construction	6,330	6,596
Operating lease liabilities	468	0
Regulatory liabilities	22,719	22,813
Deferred investment tax credits	504	508
Deferred income taxes	54,290	55,054
Total deferred credits and other liabilities	84,311	84,971
Net contributions in aid of construction	138,594	138,015
Total Liabilities and Stockholders' equity	$ 533,790	$ 529,830