Operating income before depreciation and amortization is defined as income (loss) from operations before depreciation, amortization of intangible assets and amortization of stock compensation expense. We consider operating income before depreciation and amortization to be an important indicator of the operational strength of the Company. This measure eliminates the effects of depreciation, amortization of intangible assets and amortization of stock compensation expense from period to period, which we believe is useful to management and investors in evaluating the operating performance of the Company as depreciation and amortization costs are not directly attributable to the underlying performance of the.