SHAREHOLDERS' EQUITY:

12 Months Ended

Apr. 30, 2017

Stockholders' Equity Note [Abstract]

Stockholders' Equity Note Disclosure [Text Block]

(14) SHAREHOLDERS’ EQUITY:

The Company recorded, net of tax, other comprehensive income of $1,861,000 in 2017 and other comprehensive loss of $268,000 in 2016 to account for the net effect of changes to the unfunded portion of pension liability (refer to Note 12).