6. STOCKHOLDERS' EQUITY (Tables)

9 Months Ended

Jan. 31, 2018

Equity [Abstract]

Schedule of dividends

Declaration Date	Record Date	Payment Date	Dividends Paid		Dividend Per Share
6/6/2017	6/19/2017	7/3/2017	$	1,081,000	$	0.65625
9/5/2017	9/18/2017	10/2/2017	$	1,081,000	$	0.65625
12/7/2017	12/18/2017	1/2/2018	$	1,081,000	$	0.65625