2.4.0.81060 - Disclosure - Deferred Feestruefalsefalse1false falsefalseD2014Q1http://www.sec.gov/CIK0001477032duration2013-04-01T00:00:002013-06-30T00:00:001true 1pgrx_DeferredFeesAbstractpgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Deferred Fees2false 2pgrx_DeferredFeesDisclosureTextBlockpgrx_falsenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Note 6 — Deferred Fees   Off-take Agreement with Sichuan Chemical   On October 18, 2012, we entered into an agreement with Sichuan Chemical Industry Holding (Group) Co, Ltd, a Chinese limited liability company (“Sichuan”), whereby Sichuan will purchase a minimum of 500,000 metric tonnes (on a take-or-pay basis, backed by a letter of credit) of potash from us per year for a period of ten years starting with the commencement of production from our Holbrook Project provided that Sichuan can terminate this agreement if initial mine production is not achieved by December 31, 2015.   Upon execution of the Sichuan agreement, the Company owed a one-time success fee to a third party of $7.8 million, payable 50% in cash and 50% in common stock.  As of June 30, 2013, the Company had issued 1,656,250 shares of common stock and paid $2.3 million in cash to the third party with the remaining $1.6 million being included in accrued liabilities at June 30, 2013.   The Company has elected to capitalize the total direct costs and fees of $7.8 million associated with the placement of this agreement and will begin amortizing these fees, if and when, the Company reaches production and over the term of the Sichuan agreement, or ten years. The Company will periodically evaluate the asset to determine the realization of the asset.   </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure of deferred fees.No definition available.false0Deferred FeesfalseDeferred FeesUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.prospectgri.com/role/DisclosureDeferredFees12