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INVESTMENTS: (Details 1) (USD $) In Thousands, unless otherwise specified | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2013 | Dec. 31, 2012
Available-for-sale Securities, Fair Value less than 1 Year | $ 3,140 | $ 1,235
Available-for-sale Securities, Unrealized Losses less than 1 Year | (121) | (11)
Available-for-sale Securities, Fair Value greater than 1 Year | 0 | 0
Available-for-sale Securities, Unrealized Losses greater than 1 Year | 0 | 0
Available-for-sale Securities, Total Unrealized Losses | (121) | (11)
Corporate Debt Securities [Member] |  |
Available-for-sale Securities, Fair Value less than 1 Year | 912 |
Available-for-sale Securities, Unrealized Losses less than 1 Year | (21) |
Available-for-sale Securities, Fair Value greater than 1 Year | 0 |
Available-for-sale Securities, Unrealized Losses greater than 1 Year | 0 |
Available-for-sale Securities, Total Unrealized Losses | (21) |
Mutual Funds [Member] |  |
Available-for-sale Securities, Fair Value less than 1 Year | 2,228 | 1,235
Available-for-sale Securities, Unrealized Losses less than 1 Year | (100) | (11)
Available-for-sale Securities, Fair Value greater than 1 Year | 0 | 0
Available-for-sale Securities, Unrealized Losses greater than 1 Year | 0 | 0
Available-for-sale Securities, Total Unrealized Losses | $ (100) | $ (11)

X
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- Definition Amount of unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition Amount of unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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- Definition This item represents the aggregate fair value of investments in debt and equity securities categorized neither as held-to-maturity nor trading securities that have been in a continuous unrealized loss position for less than twelve months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 + Details
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