CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash Flows From Operating Activities:
Net income	$ 8,416,769	$ 8,890,473
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,927,024	1,902,402
Amortization of prepaid leases	903,778	441,334
Issuance of common shares for services	10,000	30,350
Stock-based compensation expenses	428,074
Deferred taxes	(214,923)
Loss on disposal of property, plant and equipment	217,042
Impairment of patent	1,114,942
Changes in operating assets and liabilities:
Change in prepaid leases	(1,581,928)	(1,626,651)
Change in inventory	(1,466,478)	695,861
Change in accounts receivable	(452,220)	(53,495)
Change in taxes payable	(802,206)	786,484
Change in accounts payable and accrued expenses	53,253	115,769
Net cash provided by operating activities	8,553,127	11,182,527
Cash flows from investing activities:
Acquisition of property, plant and equipment	(1,527,367)	(43,693)
Development cost of acer truncatum bunge planting	(11,930,269)	(16,704,795)
Net cash used in investing activities	(13,457,636)	(16,748,488)
Effect of exchange rate changes on cash and cash equivalents	(539,939)	24,849
Net decrease in cash and cash equivalents	(5,444,448)	(5,541,112)
Cash and cash equivalents at beginning of year	13,083,532	18,624,644
Cash and cash equivalents at end of year	$ 7,639,084	$ 13,083,532
Cash paid during the years for:
Interest
Income taxes	$ 3,601,110	$ 2,543,766