FAIR VALUE MEASUREMENTS (Financial Assets and Liabilities Measured at Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Total Fair Value [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, fair value	$ 16,776	$ 16,663
Total Fair Value [Member] | Money market account [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, fair value	149	112
Total Fair Value [Member] | Government and agency securities [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, fair value	9,935	9,867
Total Fair Value [Member] | Corporate debt securities [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, fair value	6,692	6,684
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, fair value	16,776	16,663
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Money market account [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, fair value	149	112
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Government and agency securities [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, fair value	9,935	9,867
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate debt securities [Member]
Fair Value Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets, fair value	$ 6,692	$ 6,684