Note 11 - Information as to Employee Stock Purchase, Savings, and Similar Plans
 6 Months Ended
Sep. 30, 2020
Notes to Financial Statements  
Retirement Benefits [Text Block]

NOTE
11.
INFORMATION AS TO EMPLOYEE STOCK PURCHASE, SAVINGS, AND SIMILAR PLANS

     All of our employees are eligible to participate in our
401
(k) savings plan the
first
quarter after reaching age 
21.
Employees
may
contribute up to the Internal Revenue Code maximum. We make matching contributions of
100%
of the
first
3%
of participants' salary deferral contributions. Our matching contributions were
$21,275
for the
second
quarter of fiscal 
2021,
$21,990
for the
second
quarter of fiscal 
2020,
$46,656
for the
first
six
months of fiscal 
2021,
and
$46,056
for the
first
six
months of fiscal 
2020.