Note 3 - Operating Leases (Details) - USD ($)	12 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Payments for Leasing Costs	$ 21,000
Amortization of prepaid lease	884,950	$ 923,380
Shiqiao Village
Operating Leases, Rent Expense, Minimum Rentals	159
Zhongce No.4 Village
Operating Leases, Rent Expense, Minimum Rentals	159
Amortization of prepaid lease	159,000
Shandong Wanziyuan
Operating Leases, Rent Expense, Minimum Rentals	159
Zhongce Shen Village
Operating Leases, Rent Expense, Minimum Rentals	$ 159

This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 25
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77910348&loc=d3e34039-112682

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 10
-Section 55
-Paragraph 40
-Subparagraph (Note 3)
-URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697

Name:	us-gaap_OperatingLeasesRentExpenseMinimumRentals
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration