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3. Summary of Significant Accounting Policies (Details 2) (USD $)
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3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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| Numerator: | ||
| Net loss | $ (2,047,455)us-gaap_ProfitLoss | $ (1,759,655)us-gaap_ProfitLoss |
| Accrued dividend for Preferred Stock | (16,668)pbio_AccruedDividendForPreferredStock | (44,987)pbio_AccruedDividendForPreferredStock |
| Deemed dividend on Series K convertible preferred stock | (1,280,066)pbio_DeemedDividendOnSeriesKConvertiblePreferredStock | |
| Net loss applicable to common shareholders | $ (2,064,123)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic | $ (3,084,708)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic |
| Denominator for basic and diluted loss per share: | ||
| Weighted average common stock shares outstanding | 18,840,390us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted | 12,122,045us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted |
| Loss per common share - basic and diluted | $ (0.11)us-gaap_EarningsPerShareBasicAndDiluted | $ (0.25)us-gaap_EarningsPerShareBasicAndDiluted |
| X | ||||||||||
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- Definition
Custom Element. No definition available.
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- Definition
Custom Element. No definition available.
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- Details
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- Definition
The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
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- Details
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- Definition
Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
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