CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
ASSETS
Utility plant, at original cost (less accumulated depreciation 2018-$119,766; 2017-$116,945)	$ 467,393	$ 460,502
Current assets
Cash and cash equivalents	293	952
Accounts receivable (less allowance for doubtful accounts 2018 - $294; 2017 - $288)	8,073	8,897
Income tax receivable	651	2,353
Unbilled operating revenues	1,296	1,427
Materials and supplies	1,417	1,519
Prepaid property taxes	892	1,795
Prepaid expenses and other	1,751	2,042
Total current assets	14,373	18,985
Other assets
Non utility property (less accumulated depreciation 2018-$708; 2017-$689)	3,877	3,882
Other deferred assets	3,967	3,721
Total other assets	7,844	7,603
Regulatory assets, net	7,515	7,549
Total Assets	497,125	494,639
Stockholders' equity
Common stock	9,230	9,215
Preferred stock	0	0
Additional paid-in capital	99,951	99,526
Retained earnings	39,213	37,903
Total stockholders' equity	148,394	146,644
Long-term debt, net of current portion	105,179	105,587
Total stockholders' equity and long term debt	253,573	252,231
Current liabilities
Lines of credit	14,447	9,610
Current portion of long-term debt	1,354	1,344
Accounts payable	4,676	8,853
Overdraft payable	2,982	2,888
Accrued expenses	660	304
Accrued interest	1,132	1,805
Customer deposits	992	969
Other	4,054	2,688
Total current liabilities	30,297	28,461
Commitments and contingencies
Deferred credits and other liabilities
Net advances for construction	7,685	7,797
Regulatory liabilities	23,202	23,201
Deferred investment tax credits	522	526
Deferred income taxes	53,549	54,137
Total deferred credits and other liabilities	84,958	85,661
Net contributions in aid of construction	128,297	128,286
Total Liabilities and Stockholders' equity	$ 497,125	$ 494,639

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.