17. Construction in Progress (Detail) - Table of Construction in Progress (USD $)	Dec. 31, 2012	Dec. 31, 2011
Construction in Progress	$ 17,996,885	$ 14,895,512
Gannan Flying Crane Dairy Products Co., Limited (“Gannan Feihe”) [Member]
Construction in Progress	17,537,629	14,417,518
Qiqihaer Feihe Soybean Co., Limited (“Feihe Soybean”) [Member]
Construction in Progress	459,256	454,608
Langfang Flying Crane Dairy Products Co., Limited (“Langfang Feihe”) [Member]
Construction in Progress		1,514
Other Assets [Member]
Construction in Progress		$ 21,872

Gross amount, at the balance sheet date, of long-lived assets under construction that include construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 12

-Paragraph 5

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Name:	us-gaap_ConstructionInProgressGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant