Concentration of Risk (Details Narrative) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Cash balances in banks in the United States of America	$ 11.3		$ 11.3
Cash balances in foreign bank accounts	23.6		23.6
Uninsured amount	$ 34.3		$ 34.3
Major Customer [Member]
Concentration risk of net sales	10.00%	10.00%	1000.00%	10.00%
Major Supplier [Member]
Concentration risk of net sales			1000.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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