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INVESTMENT IN A JOINT VENTURE (Details Textual) (USD $)
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3 Months Ended | 12 Months Ended | ||||
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Sep. 30, 2014
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2010
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Dec. 31, 2011
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| Schedule of Investments [Line Items] | ||||||
| Stock Issued During Period, Value, New Issues | $ 4,910,000us-gaap_StockIssuedDuringPeriodValueNewIssues | $ 444,000us-gaap_StockIssuedDuringPeriodValueNewIssues | $ 1,070,000us-gaap_StockIssuedDuringPeriodValueNewIssues | |||
| Payments To Fund Joint Venture Investments | 500,000prph_PaymentsToFundJointVentureInvestments | |||||
| Maximum Amount Committed Towards Contributions In Joint Venture | 2,000,000prph_MaximumAmountCommittedTowardsContributionsInJointVenture | |||||
| Cash and cash equivalents | 2,926,000us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,638,000us-gaap_CashAndCashEquivalentsAtCarryingValue | 572,000us-gaap_CashAndCashEquivalentsAtCarryingValue | 5,541,000us-gaap_CashAndCashEquivalentsAtCarryingValue | ||
| Acquisition of product license | 3,600,000us-gaap_PaymentsToAcquireIntangibleAssets | |||||
| Finite-Lived Intangible Assets, Useful Life (in years) | 12 years 6 months | |||||
| Ownership Percentage In Joint Venture | 50.00%prph_OwnershipPercentageInJointVenture | |||||
| Asset Impairment Charges | 3,600,000us-gaap_AssetImpairmentCharges | |||||
| PSI Parent [Member] | ||||||
| Schedule of Investments [Line Items] | ||||||
| Stock Issued During Period, Shares, New Issues |
1,440,000us-gaap_StockIssuedDuringPeriodSharesNewIssues / dei_LegalEntityAxis = prph_PsiParentMember |
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| Stock Issued During Period, Value, New Issues |
2,600,000us-gaap_StockIssuedDuringPeriodValueNewIssues / dei_LegalEntityAxis = prph_PsiParentMember |
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| Payments To Fund Joint Venture Investments |
1,000,000prph_PaymentsToFundJointVentureInvestments / dei_LegalEntityAxis = prph_PsiParentMember |
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| Cash and cash equivalents |
$ 371,000us-gaap_CashAndCashEquivalentsAtCarryingValue / dei_LegalEntityAxis = prph_PsiParentMember |
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| X | ||||||||||
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- Definition
Maximum amount committed towards contributions in joint venture No definition available.
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- Definition
Ownership percentage in joint venture. No definition available.
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- Definition
The cash outflow associated with the funding of joint venture investments. No definition available.
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- Definition
Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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- Definition
The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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