Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
OPERATING ACTIVITIES:
Net income	$ 3,737	$ 2,616
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	28,081	23,931
Deferred income taxes	2,264	(762)
Stock-based compensation	1,552	1,280
Allowance for equity funds used during construction	(510)	(402)
Gain on sale of nonutility properties	(5,450)	0
Changes in operating assets and liabilities:
Accounts receivable and accrued unbilled utility revenue	4,311	7,725
Accounts payable and other current liabilities	(1,635)	(3,719)
Accrued groundwater extraction charges, purchased water and power	2,140	(1,040)
Tax receivable and payable, and other accrued taxes	1,135	3,333
Postretirement benefits	1,230	1,649
Regulatory assets and liabilities excluding income tax temporary differences, net and postretirement benefits	5,124	(1,750)
Other changes, net	3,315	515
NET CASH PROVIDED BY OPERATING ACTIVITIES	45,294	33,376
INVESTING ACTIVITIES:
Company-funded	(43,727)	(46,674)
Contributions in aid of construction	(4,782)	(4,653)
Additions to real estate investments	(40)	(152)
Payments to retire utility plant, net of salvage	(1,087)	(461)
Proceeds from sale of nonutility properties	227	0
Payments for business acquisitions	(33)	0
NET CASH USED IN INVESTING ACTIVITIES	(49,442)	(51,940)
FINANCING ACTIVITIES:
Borrowings on line of credit	15,377	28,637
Repayments on line of credit	(2,375)	(82,222)
Long-term borrowings	0	17,000
Repayments of long-term borrowings	(1,172)	(1,159)
Issuance of common stock, net of issuance costs	0	67,249
Dividends paid	(10,882)	(9,724)
Receipts of advances and contributions in aid of construction	10,044	4,687
Refunds of advances for construction	(595)	(583)
Other changes, net	(279)	(80)
NET CASH PROVIDED BY FINANCING ACTIVITIES	10,118	23,805
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	5,970	5,241
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD	12,119	9,269
CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD	18,089	14,510
LESS RESTRICTED CASH, END OF PERIOD	602	3,104
CASH AND CASH EQUIVALENTS, END OF PERIOD	17,487	11,406
Cash paid during the period for:
Interest	11,127	9,516
Income taxes	165	158
Supplemental disclosure of non-cash activities:
Accrued payables for additions to utility plant	20,472	16,720
Utility property installed by developers	546	202
Accrued additional common stock issuance costs	$ 0	$ 353