We complete our annual impairment tests in the fourth quarter of each year unless events or circumstances indicate that an asset may be impaired. The Company recorded an impairment charge of $154 to write down trade names pursuant to its decision to rename and rebrand the subsidiaries under DT to DT EMEA and DT APAC. There were no other indications of impairment present during the period ended March 31, 2014. However, the Company recorded an increase in intangible assets for the acquisition of DT APAC of $6,826. The Company did not record an intangible asset impairment charge for the year ended March 31, 2013.

The components of intangible assets as at March 31, 2014 and 2013 were as follows:

The Company has included amortization of acquired intangible assets directly attributable to revenue-generating activities in cost of revenues. The Company has included amortization of acquired intangible assets not directly attributable to revenue-generating activities in operating expenses.

During the twelve month period ended March 31, 2014 and 2013, the Company recorded amortization expense in the amount of $1,769 and $298, respectively, in cost of revenues for continuing operations and $203 and $232 for discontinued operations, respectively.

Based on the amortizable intangible assets as of March 31, 2014, we estimate amortization expense for the next five years to be as follows:

Below is a summary of Intangible assets: