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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES |  |  |
Net income | $ 16,827 | $ 16,817 | $ 14,925
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation and amortization | 11,885 | 11,143 | 10,803
Deferred income taxes, net | 2,803 | (1,963) | (2,813)
Stock compensation | 193 | 178 | 181
AFUDC, equity portion | (556) | (781) | (886)
Changes in assets and liabilities: |  |  |
Accounts receivable, net of allowance for doubtful accounts | 94 | (2,324) | (94)
Income tax receivable | (1,605) | (610) | 753
Unbilled operating revenues | 86 | 45 | 230
Materials and supplies | (398) | (271) | 195
Income tax payable | (28) | (106) | 343
Prepaid property taxes | (415) | 63 | (84)
Prepaid expenses and other | (444) | 42 | (126)
Other deferred assets | (445) | (409) | (361)
Regulatory assets | 115 | 390 | 388
Regulatory liabilities | (535) | (635) | (642)
Accounts payable | 3,547 | (1,835) | (11)
Accrued expenses | (71) | 301 | (789)
Accrued interest | (13) | 100 | 46
Revenue reserved for refund | 0 | 0 | (3,298)
Customer deposits and other | 270 | 213 | 110
NET CASH PROVIDED BY OPERATING ACTIVITIES | 31,310 | 20,358 | 18,870
CASH FLOWS FROM INVESTING ACTIVITIES |  |  |
Capital expenditures (net of AFUDC, equity portion) | (40,814) | (34,277) | (40,677)
Investment in acquisitions | 0 | (5,741) | 0
Proceeds from sale of assets | 90 | 46 | 51
NET CASH USED IN INVESTING ACTIVITIES | (40,724) | (39,972) | (40,626)
CASH FLOWS FROM FINANCING ACTIVITIES |  |  |
Net (repayments) borrowings under lines of credit agreements | (110) | 19,313 | (8,442)
(Decrease) increase in overdraft payable | (75) | 90 | (102)
Net advances and contributions in aid of construction | 15,817 | 9,280 | 10,507
Net proceeds from issuance of common stock | 1,390 | 1,539 | 1,033
Issuance of long-term debt | 4,126 | 0 | 30,000
Dividends paid | (9,826) | (9,376) | (9,122)
Debt issuance costs | (19) | (28) | (90)
Principal repayments of long-term debt | (1,825) | (1,772) | (1,725)
NET CASH PROVIDED BY FINANCING ACTIVITIES | 9,478 | 19,046 | 22,059
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | 64 | (568) | 303
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR | 28 | 596 | 293
CASH AND CASH EQUIVALENTS AT END OF PERIOD | 92 | 28 | 596
Non-cash Investing and Financing Activity: |  |  |
Utility plant received as construction advances and contributions | 3,538 | 2,403 | 3,716
Contractual amounts of contributions in aid of construction due from developers included in accounts receivable | 545 | 1,705 | 710
Contractual amounts of contributions in aid of construction received from developers previously included in accounts receivable | 1,749 | 781 | 2,050
Amounts included in accounts payable and accrued payables related to capital expenditures | 3,763 | 3,122 | 7,332
Supplemental Cash Flow Information: |  |  |
Interest paid | 7,605 | 7,519 | 6,978
Income taxes paid | 5,181 | 8,792 | 7,332
Purchase price allocation of investment in acquisitions: |  |  |
Utility plant | 0 | 5,118 | 0
Other deferred assets/goodwill | 0 | 623 | 0
Total investment in acquisitions | $ 0 | $ 5,741 | $ 0

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