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REGULATORY ASSETS (Tables) | 3 Months Ended
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Mar. 31, 2018
REGULATORY ASSETS [Abstract] |
Amortization period of other regulatory expense | Regulatory expenses amortized on a straight-line basis are noted below:
Expense | Years Amortized
Depreciation and salary studies | 5
Delaware rate proceedings | 2.5
Maryland rate proceedings | 5
Debt related costs | 15 to 25 (based on term of related debt)
Goodwill (resulting from acquisition of Mountain Hill Water Company in 2008) | 50
Deferred acquisition costs (resulting from purchase of water assets in Cecil County, Maryland in 2011 and Port Deposit, Maryland in 2010) | 20
Franchise Costs (resulting from purchase of water assets in Cecil County, Maryland in 2011) | 80
Regulatory assets, net of amortization, comprise |
Regulatory assets, net of amortization, comprise: |
|  | (in thousands) |
|  | March 31, 2018 |  |  | December 31, 2017 |
Postretirement benefit obligation |  | $ | 149 |  |  | $ | 149 |
Deferred income taxes |  |  | 412 |  |  |  | 416 |
Debt related costs |  |  | 68 |  |  |  | 70 |
Expense of rate and regulatory proceedings |  |  | 5,948 |  |  |  | 5,965 |
Goodwill |  |  | 301 |  |  |  | 303 |
Deferred acquisition and franchise costs |  |  | 637 |  |  |  | 646 |
|  | $ | 7,515 |  |  | $ | 7,549 |

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- Definition Tabular disclosure of assets that are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44264-110382 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 715 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501251&loc=d3e52485-110419 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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