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Earnings (Loss) Per Share (Details Textual)
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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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| Earnings Loss Per Share [Line Items] | ||
| Class of Warrant or Right, Outstanding | 1,739,500us-gaap_ClassOfWarrantOrRightOutstanding | 1,637,500us-gaap_ClassOfWarrantOrRightOutstanding |
| Common Stock Equivalents [Member] | ||
| Earnings Loss Per Share [Line Items] | ||
| Weighted Average Number Diluted Shares Outstanding Adjustment |
358,411us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment / us-gaap_StatementEquityComponentsAxis = prph_CommonStockEquivalentsMember |
586,215us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment / us-gaap_StatementEquityComponentsAxis = prph_CommonStockEquivalentsMember |
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- Details
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- Definition
Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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