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Prepayment on property, plant and equipment	9 Months Ended
	Sep. 30, 2011
Prepayment on property, plant and equipment	(5) Prepayment on property, plant and equipment As of September 30, 2011 and December 31, 2010, prepayment on property, plant and equipment consisted of $7,200,438 and $6,957,258, respectively, in respect of prepaid land use right.

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- Definition

Disclosure of the major components of noncurrent assets not separately presented in the balance sheet due to materiality considerations.

+ Details

Name:	onp_OtherAssetsNoncurrentDisclosureTextBlock
Namespace Prefix:	onp
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration