LONG LIVED ASSETS IMPAIRMENT LOSS (Details Narrative) (USD $)	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011
Notes to Financial Statements
Impairment losses	$ 1,811,732	$ 828,071

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a long-lived asset to fair value.

No definition available.

Name:	rsrv_ImpairmentOfAssetsLongLived
Namespace Prefix:	rsrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration