Business acquisitions Acquisition of mVisum net assets On January 13, 2014 , the Company acquired certain assets and certain liabilities of mVisum, Inc. ( mVisum ), an innovative provider of alarm management technology solutions for health systems, for $3.5 million in cash. The acquisition enabled the Company to enhance its existing platform with complementary communications solutions for healthcare and other mission-critical environments. The following table presents the fair value of the identifiable assets acquired and liabilities assumed as of the acquisition date: (in thousands) Fair value of net assets acquired Accounts receivable $ 187 Intangibles Developed technology 830 Non-compete agreement 260 Customer relationships 170 Trademarks and trade names 40 Goodwill 2,103 Total assets 3,590 Deferred revenue (90 ) Net assets acquired $ 3,500 The estimated fair values of identifiable intangible assets were primarily determined using discounted cash flow models. The acquired intangible assets are amortized over their estimated useful lives of 4.0 to 7.0 years with a weighted average amortization period of 5.7 years. The excess of the acquisition consideration over the fair values of the underlying net assets acquired was recorded as goodwill. Goodwill is largely attributable to the synergy of mVisum s proprietary solutions with the Company s existing customer base, dedicated sales force and cross selling opportunities with the Company s other solutions. Goodwill is not amortized but instead is tested for impairment at least annually or more frequently if indicators of impairment are present. For federal income tax purposes, the entire purchase consideration, including goodwill, is deductible over fifteen years. The goodwill recorded from the acquisition of mVisum is attributed to the Product reporting unit. The Company incurred $0.2 million of acquisition-related costs that were expensed as incurred. These costs are recorded as general and administrative expenses in the consolidated statement of operations. Addit