Quarterly report pursuant to Section 13 or 15(d)

Earnings (Loss) Per Share (Details)

v2.4.1.9
Earnings (Loss) Per Share (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Earnings Loss Per Share [Line Items]    
Basic EPS - Income (Loss) $ (1,380)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (804)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Basic EPS - Shares (in shares) 15,892us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 16,469us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Basic EPS - EPS (in dollars per share) $ (0.09)us-gaap_EarningsPerShareBasic $ (0.05)us-gaap_EarningsPerShareBasic
Dilutives:    
Options/Warrants - Loss 0prph_DilutiveSecuritiesOptionsEarningsPerShareValue 0prph_DilutiveSecuritiesOptionsEarningsPerShareValue
Options/Warrants - Shares (in shares) 0prph_DilutiveSecuritiesOptionsEarningsShare 0prph_DilutiveSecuritiesOptionsEarningsShare
Options/Warrants - EPS (in dollars per share) $ 0prph_DilutiveSecuritiesOptionsEarningsPerShare $ 0prph_DilutiveSecuritiesOptionsEarningsPerShare
Diluted EPS - Income (Loss) $ (1,380)us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted $ (804)us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
Diluted EPS - Shares (in shares) 15,892us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 16,469us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Diluted EPS - EPS (in dollars per share) $ (0.09)us-gaap_EarningsPerShareDiluted $ (0.05)us-gaap_EarningsPerShareDiluted