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Note 13 - Major Customers
 3 Months Ended
Dec. 31, 2016
Notes to Financial Statements  
Concentration Risk Disclosure [Text Block]
13.
MAJOR CUSTOMERS
 
For the
three
months ended
December
31,
2016,
revenues from
one
customer accounted for
11%
of total revenues, with
no
other single customer accounting for more than
10%
of revenues. At
December
31,
2016,
accounts receivable from
two
customers accounted for
40%
and
19%
of total accounts receivable, respectively, with
no
other single customer accounting for more than
10%
of the accounts receivable balance.
 
For the
three
months ended
December
31,
2015,
revenues from
two
customers accounted for
16%
and
11%
of total revenues, respectively, with
no
other single customer accounting for more than
10%
of revenues. At
December
31,
2015,
accounts receivable from
three
customers accounted for
30%,
13%
and
12%
of total accounts receivable, respectively, with
no
other single customer accounting for more than
10%
of the accounts receivable balance.