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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
ASSETS |  |
Utility plant, at original cost (less accumulated depreciation - 2020 - $145,619,; 2019 - $136,588) | $ 553,387 | $ 530,721
Current assets |  |
Cash and cash equivalents | 249 | 596
Accounts receivable (less allowance for doubtful accounts 2020 - $882; 2019 - $264) | 9,177 | 6,913
Income tax receivable | 352 | 19
Unbilled operating revenues | 1,600 | 1,211
Materials and supplies | 1,491 | 1,264
Prepaid property taxes | 2,826 | 1,954
Prepaid expenses and other | 2,157 | 2,250
Total current assets | 17,852 | 14,207
Other assets |  |
Non-utility property (less accumulated depreciation - 2020- $846; 2019 - $790) | 3,798 | 3,812
Other deferred assets | 5,328 | 4,257
Operating lease right of use assets | 464 | 480
Total other assets | 9,590 | 8,549
Regulatory assets, net | 6,602 | 6,891
Total Assets | 587,431 | 560,368
Stockholders' equity |  |
Common stock | 9,340 | 9,292
Preferred stock | 0 | 0
Additional paid-in capital | 103,022 | 101,811
Retained earnings | 53,492 | 49,165
Total stockholders' equity | 165,854 | 160,268
Long-term debt, net of current portion | 142,651 | 144,156
Total stockholders' equity and long term debt | 308,505 | 304,424
Current liabilities |  |
Lines of credit | 20,078 | 7,500
Current portion of long-term debt | 1,815 | 1,706
Accounts payable | 4,362 | 8,176
Accrued expenses | 4,498 | 3,113
Dividends payable | 2,402 | 0
Overdraft payable | 3,682 | 15
Accrued interest | 1,357 | 830
Income taxes payable | 661 | 343
Customer and other deposits | 2,063 | 1,970
Other | 2,704 | 1,946
Total current liabilities | 43,622 | 25,599
Commitments and contingencies |  |
Deferred credits and other liabilities |  |
Net advances for construction | 4,774 | 5,421
Operating lease liabilities | 435 | 450
Regulatory liabilities | 21,821 | 22,246
Deferred investment tax credits | 477 | 490
Deferred income taxes | 50,411 | 52,259
Total deferred credits and other liabilities | 77,918 | 80,866
Net contributions in aid of construction | 157,386 | 149,479
Total Liabilities and Stockholders' Equity | $ 587,431 | $ 560,368

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