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SIGNIFICANT CUSTOMERS (Details Textual) (USD $)
In Thousands, unless otherwise specified
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3 Months Ended |
12 Months Ended |
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Dec. 31, 2014
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Sep. 30, 2014
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Jun. 30, 2014
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Mar. 31, 2014
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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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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| Significant Customers [Line Items] |
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| Revenue, Net |
$ 8,972us-gaap_SalesRevenueNet
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$ 5,130us-gaap_SalesRevenueNet
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$ 1,797us-gaap_SalesRevenueNet
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$ 6,171us-gaap_SalesRevenueNet
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$ 9,602us-gaap_SalesRevenueNet
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$ 5,949us-gaap_SalesRevenueNet
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$ 1,939us-gaap_SalesRevenueNet
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$ 7,542us-gaap_SalesRevenueNet
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$ 22,070us-gaap_SalesRevenueNet
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$ 25,032us-gaap_SalesRevenueNet
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$ 22,406us-gaap_SalesRevenueNet
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| Accounts Receivable [Member] |
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| Significant Customers [Line Items] |
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| Concentration Risk, Percentage |
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67.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
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68.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember
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| Sales [Member] | Walgreens [Member] |
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| Significant Customers [Line Items] |
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| Concentration Risk, Percentage |
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18.90%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_MajorCustomersAxis
= prph_WalgreensMember
|
20.40%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_MajorCustomersAxis
= prph_WalgreensMember
|
19.30%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_MajorCustomersAxis
= prph_WalgreensMember
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| Sales [Member] | Wal Mart [Member] |
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| Significant Customers [Line Items] |
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| Concentration Risk, Percentage |
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16.90%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_MajorCustomersAxis
= prph_WalMartMember
|
14.30%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_MajorCustomersAxis
= prph_WalMartMember
|
13.80%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_MajorCustomersAxis
= prph_WalMartMember
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| Sales [Member] | CVS Health Corporation [Member] |
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| Significant Customers [Line Items] |
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| Concentration Risk, Percentage |
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11.30%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_MajorCustomersAxis
= prph_CvsHealthCorporationMember
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11.60%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_MajorCustomersAxis
= prph_CvsHealthCorporationMember
|
13.40%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesMember
/ us-gaap_MajorCustomersAxis
= prph_CvsHealthCorporationMember
|