CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
ASSETS
Utility plant, at original cost (less accumulated depreciation - 2019 - $136,588,; 2018 - $126,114)	$ 530,721	$ 498,678
Current assets
Cash and cash equivalents	596	293
Accounts receivable (less allowance for doubtful accounts 2019 - $264; 2018-$232)	6,913	8,159
Income tax receivable	19	772
Unbilled operating revenues	1,211	1,441
Materials and supplies	1,264	1,459
Prepaid property taxes	1,954	1,870
Prepaid expenses and other	2,250	2,124
Total current assets	14,207	16,118
Other assets
Non-utility property (less accumulated depreciation - 2019- $790; 2018 - $734)	3,812	3,849
Other deferred assets	4,257	3,931
Operating lease right of use asset	480	0
Total other assets	8,549	7,780
Regulatory assets, net	6,891	7,254
Total assets	560,368	529,830
Stockholders' equity
Common stock	9,292	9,250
Preferred stock	0	0
Additional paid-in capital	101,811	100,639
Retained earnings	49,165	43,362
Total stockholders' equity	160,268	153,251
Long-term debt, net of current portion	144,156	115,862
Total stockholders' equity and long-term debt	304,424	269,113
Current liabilities
Lines of credit	7,500	15,942
Current portion of long-term debt	1,706	1,725
Accounts payable	8,176	8,187
Accrued expenses	3,113	3,902
Overdraft payable	15	117
Accrued interest	830	784
Income taxes payable	343	0
Customer and other deposits	1,970	1,850
Revenue reserve for refund	0	3,298
OtherLiabilitiesCurrent	1,946	1,926
Total current liabilities	25,599	37,731
Commitments and contingencies (Note 12)
Deferred credits and other liabilities
Net advances for construction	5,421	6,596
OperatingLeaseLiabilityNoncurrent	450	0
Regulatory liabilities	22,246	22,813
Deferred investment tax credits	490	508
Deferred income taxes	52,259	55,054
Total deferred credits and other liabilities	80,866	84,971
Net contributions in aid of construction	149,479	138,015
Total Liabilities and Stockholders' Equity	$ 560,368	$ 529,830