Note 16 - Concentration of Credit Risk

3 Months Ended

Jul. 31, 2018

Notes to Financial Statements

Concentration of Credit Risk [Text Block]

Note

16

- Concentration of Credit Risk:

Financial instruments that potentially subject the Company to concentration of credit risk consist principally of cash deposits. Accounts at each institution are insured by the Federal Deposit Insurance Corporation (“FDIC”) up to

$250,000.

As of

July 31, 2018

and

July 31, 2017,

the Company had

$899,000

and

$4,670,000,

respectively, in excess of the FDIC insured limit.