CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Sales
Net sales	$ 216,897,956	$ 217,524,205	$ 179,717,966
Cost of goods sold
Cost of goods sold	137,514,102	138,248,972	116,097,931
Gross profit	79,383,854	79,275,233	63,620,035
Operating expenses
Selling expenses	14,365,869	11,548,816	7,121,905
General and administrative expenses	9,632,523	13,801,407	14,386,699
Total operating expenses	23,998,392	25,350,223	21,508,604
Income from operations	55,385,462	53,925,010	42,111,431
Other income (expense)
Other income (expense)	613,008	60,212	23,999
Interest income	310,723	364,536	282,727
Interest expense	(1,351,157)	(1,590,620)	(466,912)
Total other income (expense)	(427,426)	(1,165,872)	(160,186)
Income before income taxes	54,958,036	52,759,138	41,951,245
Provision for income taxes	10,183,988	10,801,313	9,037,144
Net income	44,774,048	41,957,825	32,914,101
Other comprehensive income
Foreign currency translation gain	6,032,903	4,876,751	7,547,145
Comprehensive income	50,806,951	46,834,576	40,461,246
Basic weighted average shares outstanding (in shares)	27,775,964	26,943,530	25,929,517
Basic net earnings per share (in dollars per share)	$ 1.61	$ 1.56	$ 1.27
Diluted weighted average shares outstanding (in shares)	27,775,964	26,943,530	25,929,517
Diluted net earnings per share (in dollars per share)	$ 1.61	$ 1.56	$ 1.27
Jinong [Member]
Sales
Net sales	110,585,022	88,168,740	65,629,265
Cost of goods sold
Cost of goods sold	51,883,935	34,129,304	26,449,117
Operating expenses
Income from operations	44,036,878	43,636,915	34,051,094
Other income (expense)
Provision for income taxes	6,654,038	6,597,765	5,157,185
Net income	37,682,986	37,363,672	29,139,457
Gufeng [Member]
Sales
Net sales	102,915,414	121,480,943	107,081,018
Cost of goods sold
Cost of goods sold	83,020,447	96,756,719	85,670,990
Operating expenses
Income from operations	15,322,045	18,211,687	15,288,871
Other income (expense)
Provision for income taxes	3,529,950	4,203,548	3,879,959
Net income	10,498,393	12,335,102	10,995,984
Jintai [Member]
Sales
Net sales	0	5,792,002	6,826,933
Cost of goods sold
Cost of goods sold	0	5,415,970	3,841,391
Operating expenses
Income from operations	0	(1,863,529)	(96,343)
Other income (expense)
Net income	0	(1,863,235)	(96,244)
Yuxing [Member]
Sales
Net sales	3,397,520	2,082,520	180,750
Cost of goods sold
Cost of goods sold	2,609,720	1,946,979	136,433
Operating expenses
Income from operations	(32,265)	(352,996)	(296,832)
Other income (expense)
Net income	$ 533,722	$ (170,996)	$ (293,914)