Goodwill	12 Months Ended
Apr. 30, 2017
Goodwill [Abstract]
Goodwill	Goodwill In accordance with ASC Topic 350, “Intangibles-Goodwill and Other”, the Company evaluates goodwill for impairment annually in the fourth fiscal quarter or more frequently if indicators of potential impairment arise, using the two-step method. Conditions that could trigger a more frequent impairment assessment include, but are not limited to, a significant adverse change in customer demand or business climate, significant underperformance relative to historical or projected future operating results, a significant reduction in our stock price for a sustained period or a reduction of the Company's market capitalization relative to the carrying value. The Company performs step one of the test for impairment of goodwill by estimating and comparing the fair value of the Company's single reporting unit to its carrying value as of that date. The Company estimates fair value of its single reporting unit using a market approach, which includes consideration of the Company's market capitalization. If the fair value of the Company's single reporting unit is less than its carrying value, the second step of the test for impairment of goodwill, in which the Company compares the implied fair value of its reporting unit's goodwill with the carrying value of that goodwill, is performed. The estimate of implied fair value of goodwill may require estimated fair values of individual assets and liabilities of the reporting unit, together with an estimate of the fair value of the reporting unit taken as a whole. If the carrying value of the goodwill exceeds the calculated implied fair value, the excess amount will be recognized as an impairment loss. The estimates the Company makes in determining the fair value of its reporting unit involve the application of judgment, which could affect the timing and size of any future impairment charges. No goodwill impairment charges were recorded for any of the periods presented. As of April 30, 2017 and April 30, 2016, the Company had goodwill in the amount of $139.2 million. The Company did not recognize any goodwill impairment during fiscal year 2017, 2016 or 2015. There have been no acquisitions of goodwill during the fiscal years ended April 30, 2017 and 2016.

Goodwill

In accordance with ASC Topic 350, “Intangibles-Goodwill and Other”, the Company evaluates goodwill for impairment annually in the fourth fiscal quarter or more frequently if indicators of potential impairment arise, using the two-step method. Conditions that could trigger a more frequent impairment assessment include, but are not limited to, a significant adverse change in customer demand or business climate, significant underperformance relative to historical or projected future operating results, a significant reduction in our stock price for a sustained period or a reduction of the Company's market capitalization relative to the carrying value.

The Company performs step one of the test for impairment of goodwill by estimating and comparing the fair value of the Company's single reporting unit to its carrying value as of that date. The Company estimates fair value of its single reporting unit using a market approach, which includes consideration of the Company's market capitalization. If the fair value of the Company's single reporting unit is less than its carrying value, the second step of the test for impairment of goodwill, in which the Company compares the implied fair value of its reporting unit's goodwill with the carrying value of that goodwill, is performed. The estimate of implied fair value of goodwill may require estimated fair values of individual assets and liabilities of the reporting unit, together with an estimate of the fair value of the reporting unit taken as a whole. If the carrying value of the goodwill exceeds the calculated implied fair value, the excess amount will be recognized as an impairment loss.

The estimates the Company makes in determining the fair value of its reporting unit involve the application of judgment, which could affect the timing and size of any future impairment charges. No goodwill impairment charges were recorded for any of the periods presented.

As of April 30, 2017 and April 30, 2016, the Company had goodwill in the amount of $139.2 million. The Company did not recognize any goodwill impairment during fiscal year 2017, 2016 or 2015. There have been no acquisitions of goodwill during the fiscal years ended April 30, 2017 and 2016.