Note 11 - Stockholders' Equity: Statutory Reserve (Details)	12 Months Ended
Mar. 31, 2018
Details
Statutory Reserve Fund Percentage	10.00%
Statutory Reserve Fund To Registered Capital	50.00%

Represents the Statutory Reserve Fund To Registered Capital, during the indicated time period.

No definition available.

Name:	fil_MaximumRequiredPercentageOfStatutorySurplusReserveFundToRegisteredCapital
Namespace Prefix:	fil_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration