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SIGNIFICANT ACCOUNTING POLICIES (Detail Textuals 3) | 12 Months Ended
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Dec. 31, 2015
Municipal debt obligations | AA- or higher |
Schedule of Available-for-sale Securities [Line Items] |
Period of maturity debt obligations | less than one year to over 10 years
Municipal debt obligations | A- or higher |
Schedule of Available-for-sale Securities [Line Items] |
Period of current marketable securities | less than 12 months
Period of non-current marketable securities | greater than 12 months
Maturity term of non-current marketable securities | 2017 and 2037
Corporate obligations | A- or higher |
Schedule of Available-for-sale Securities [Line Items] |
Period of maturity debt obligations | one to five years

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