Statement Of Cash Flow Information (Restricted Cash) (Details)	Sep. 30, 2012 Cash Posted As Security Against Company Issued Credit Cards for Olympic [Member] CAD	Dec. 31, 2011 Cash Posted As Security Against Company Issued Credit Cards for Olympic [Member] CAD	Sep. 30, 2012 Seismic Operations Bonds [Member] USD ($)	Dec. 31, 2011 Seismic Operations Bonds [Member] USD ($)
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and cash equivalents	125,000	125,000	$ 651,000	$ 122,000

- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

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