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Income Taxes - Deferred Tax Assets and Liabilities (Detail) (USD $)
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Dec. 31, 2014
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Dec. 31, 2013
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| Deferred tax assets | ||
| Net operating loss carryforwards | $ 9,951,666us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | $ 16,859,179us-gaap_DeferredTaxAssetsOperatingLossCarryforwards |
| Deferred revenue | 138,378us-gaap_DeferredTaxAssetsDeferredIncome | |
| Equity issuance cost | 102,935us-gaap_DeferredTaxAssetsTaxDeferredExpenseOther | |
| Bank loan | 12,653us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses | 23,014us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses |
| Intercompany Loan Australia | 1,129pirs_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForIntercompanyLoanLosses | |
| Total deferred tax assets | 9,965,448us-gaap_DeferredTaxAssetsGross | 17,123,506us-gaap_DeferredTaxAssetsGross |
| Valuation allowance | 9,916,553us-gaap_DeferredTaxAssetsValuationAllowance | 17,053,767us-gaap_DeferredTaxAssetsValuationAllowance |
| Net deferred tax assets | 48,895us-gaap_DeferredTaxAssetsNet | 69,739us-gaap_DeferredTaxAssetsNet |
| Deferred tax liabilities | ||
| Useful life adjustment fixed assets | 30,646us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | 54,303us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |
| Adjustment accruals | 8,811us-gaap_DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals | 15,436us-gaap_DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals |
| Prepaid expenses | 9,438us-gaap_DeferredTaxLiabilitiesPrepaidExpenses | |
| Total deferred tax liabilities | 48,895us-gaap_DeferredIncomeTaxLiabilities | 69,739us-gaap_DeferredIncomeTaxLiabilities |
| Net deferred tax asset/(liability) | $ 0us-gaap_DeferredTaxAssetsLiabilitiesNet | $ 0us-gaap_DeferredTaxAssetsLiabilitiesNet |
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- Definition
Deferred tax assets tax deferred expense reserves and accruals provision for intercompany loan losses. No definition available.
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from other provisions, reserves, allowances, and accruals not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the provision for loan losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from reserves and accruals. No definition available.
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- Definition
Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses. No definition available.
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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