Note 3 - Operating Leases (Details) - USD ($)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Payments for Leasing Costs	$ 20,350
Amortization of prepaid leases	903,778	$ 441,334
Farmland Leasing Agreement | Shiqiao Village
Operating Leases, Rent Expense, Minimum Rentals	155
Amortization of prepaid leases	1,547,700
Farmland Leasing Agreement | Zhongce No 4 Village
Operating Leases, Rent Expense, Minimum Rentals	155
Amortization of prepaid leases	154,770
Farmland Leasing Agreement | SizhangTownshipMember
Operating Leases, Rent Expense, Minimum Rentals	155
Amortization of prepaid leases	1,547,700
Farmland Leasing Agreement | Zhongce Shen Village
Operating Leases, Rent Expense, Minimum Rentals	155
Amortization of prepaid leases	$ 1,547,700