The following is a summary of the transactions: Cash $ 567 Investments 1,378 Goodwill 3,160 Premises and equipment 206 Other assets 328 Other liabilities  (1,076) Net cash paid $ 4,563 On October 24, 2001, the Company acquired the remaining 49% of Trust Company of Maine, Inc. (GLYPH<210>TCOMGLYPH<211>). The Company acquired the majority ownership (51%) of TCOM in December 1995 through the CompanyGLYPH<213>s merger with UnitedCorp, then the parent of TCOM. TCOM is a non-depository trust company chartered under the laws of the State of Maine and has its principal office in Bangor, Maine. TCOM provided a broad range of trust, trust-related, and investment services, in addition to retirement and pension plan management services, to both individual and institutional clients. This transaction resulted in the recording of $1.1 million in goodwill. On January 1, 2003, TCOM was merged with and into Acadia Trust, N.A., with Acadia Trust, N.A. remaining as the surviving entity. Under the purchase method of accounting, the results of operations of the acquired subsidiaries are included in the results of operations only from their respective dates of acquisition. In June 2001, the FASB issued SFAS No. 141, GLYPH<210>Business Combinations,GLYPH<211> and SFAS No. 142, GLYPH<210>Goodwill and Other Intangible Assets.GLYPH<211> SFAS No. 141 specifies that intangible assets acquired in a business combination must be recognized and reported separately from goodwill. SFAS No. 142 requires, in part, that recorded goodwill be tested at least annually for impairment rather than being amortized over the estimated useful life of the underlying business. The Company adopted the provisions of SFAS No. 141 as of July 1, 2001 and SFAS No. 142 as of January 1, 2002. The purchase of Acadia Trust, N.A. and Gouws Capital was accounted for under SFAS No. 141. Goodwill acquired in a purchase business combination completed after June 30, 2001, but before SFAS No. 142 was adopted  in full, is not amortized. The Company had no business combinations treated as a purchase before July 1, 2001; thus, the Company  did not have any goodwill prior to that date. Upon adoption of SFAS No. 142, the Company evaluated its existing intangible assets and goodwill that were acquired in purchase business combinations, and considered whether any necessary reclassifications were required in order to conform with the new classification criteria in SFAS No. 141 for recognition separate from goodwill. No such reclassifications were required. In connection with the transitional goodwill impairment evaluation, SFAS No. 142 required the Company to perform an assessment of whether there was an indication that goodwill was permanently impaired as of the date of adoption. The Company identified its reporting units and determined the carrying value of each reporting unit by assigning the assets and liabilities, including the existing goodwill, to those reporting units as of the date of adoption. As a result of this process, the Company identified Banking and Financial Services as reporting units based on operational characteristics, the existence of discrete financial information, and  direct management review of these units. The Company determined that goodwill was impaired as of January 1, 2002, the date  of adoption, and the transitional impairment loss, net of taxes, was recognized as a cumulative effect of a change in accounting principle in the CompanyGLYPH<213>s Consolidated Statement of Income. The Company estimated the value of goodwill as of January 1, 2002 utilizing several standard valuation techniques, including discounted cash flow analyses, as well as an estimation of the impact of business conditions on the long-term value of the goodwill carried on the CompanyGLYPH<213>s statement of condition. The Company determined that the impact of the overall deterioration of the stock market on investor activities within its target market had negatively impacted the value of its goodwill balances related to the acquisitions of its financial services subsidiaries. This resulted in an estimation of impairment of $690,000 before taxes. At January 1, 2002, goodwill was as follows: Financial Banking Services Total Goodwill, at cost $1,800 $2,408 $4,208 Transitional impairment loss — (690) (690) Goodwill, net $1,800 $1,718 $3,518 48 Camden National Corporation and Subsidiaries Amortization expense related to the core deposit intangible for the years ended December 31, 2002, 2001 and 2000 amounted to $941.1 thousand, $952.2 thousand and $985.5 thousand, respectively. The expected amortization expense for each year in the  five-year period ending December 31, 2007 is estimated to be $941.1 thousand. The following tables summarize the amortized costs and market values of securities available for sale and held to maturity, as of the dates indicated: The Company has a core deposit intangible asset related to the acquisition of bank branches in 1998. The core deposit intangible is amortized on a straight-line basis over 10 years, and reviewed for possible impairment when it is determined that events or changed circumstances may affect the underlying basis of the asset. The carrying amount is as follows: 4. CORE DEPOSIT INTANGIBLE 5. INVESTMENT SECURITIES Camden National Corporation and Subsidiaries 49 3. GOODWILL DECEMBER 31, 2002 DECEMBER 31, 2001 Core deposit intangible, cost $9,424 $9,424 Accumulated amortization  4,657  3,716 Core deposit intangible, net $4,767 $5,708 DECEMBER 31, 2002 Amortized Unrealized Unrealized Fair Cost Gains Losses Value Available for sale U.S. Treasury securities and obligations of U.S. government corporations and agencies $104,673 $ 3,339 $  — $108,012 Obligations of states and political subdivisions 8,551 384 — 8,935 Mortgage-backed securities 143,849 6,321 — 150,170 Other debt securities 34,953 822 —  35,775 Total debt securities 292,026  10,866 — 302,892 Equity securities 11,451 217 (780) 10,888 Total securities available for sale $303,477 $11,083 $(780) $313,780 Held to maturity U.S. Treasury securities and obligations of U.S. government corporations and agencies $ 995 $ — $ — $ 995 Total securities held to maturity $ 995 $ — $ — $ 995