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INVESTMENTS: (Tables) | 9 Months Ended
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Sep. 30, 2013
Investments [Abstract] |
Available-for-sale Securities [Table Text Block] | The Company’s investments (short-term and long-term) consist of the following:
|  | Amortized Cost Basis |  | Gross Unrealized Losses |  | Gross Unrealized Gains |  | Fair Value |
|  | (In thousands) |
September 30, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | 1,049 |  | $ | (21) |  | $ | 8 |  | $ | 1,036 |
Mutual funds |  |  | 2,329 |  |  | (100) |  |  | — |  |  | 2,229 |
Total investments |  | $ | 3,378 |  | $ | (121) |  | $ | 8 |  | $ | 3,265 |
|  | Amortized Cost Basis |  | Gross Unrealized Losses |  | Gross Unrealized Gains |  | Fair Value |
|  | (In thousands) |
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | 85 |  | $ | — |  | $ | 107 |  | $ | 192 |
Mutual funds |  |  | 1,512 |  |  | (11) |  |  | 1 |  |  | 1,502 |
Total investments |  | $ | 1,597 |  | $ | (11) |  | $ | 108 |  | $ | 1,694 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] | The following tables show the gross unrealized losses and fair value of the Company’s investments with unrealized losses that are not deemed to be other-than-temporarily impaired, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position:
|  | Fair Value < 1 Year |  | Unrealized Losses < 1 Year |  | Fair Value > 1 Year |  | Unrealized Losses > 1 Year |  | Total Unrealized Losses |
|  | (In thousands) |
September 30, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | 912 |  | $ | (21) |  | $ | — |  | $ | — |  | $ | (21) |
Mutual funds |  |  | 2,228 |  |  | (100) |  |  | — |  |  | — |  |  | (100) |
Total investments |  | $ | 3,140 |  | $ | (121) |  | $ | — |  | $ | — |  | $ | (121) |
|  | Fair Value < 1 Year |  | Unrealized Losses < 1 Year |  | Fair Value > 1 Year |  | Unrealized Losses > 1 Year |  | Total Unrealized Losses |
|  | (In thousands) |
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mutual funds |  | $ | 1,235 |  | $ | (11) |  | $ | — |  | $ | — |  | $ | (11) |
Total investments |  | $ | 1,235 |  | $ | (11) |  | $ | — |  | $ | — |  | $ | (11) |
Investments Classified by Contractual Maturity Date [Table Text Block] | The amortized cost and estimated fair value of debt securities at September 30, 2013, by contractual maturity, are shown below.
|  | Amortized Cost Basis |  | Fair Value |
|  | (In thousands) |
Within 1 year |  | $ | 1,031 |  | $ | 1,016 |
After 1 year through 5 years |  |  | 18 |  |  | 20 |
Total debt securities |  | $ | 1,049 |  | $ | 1,036 |
Schedule Of Available For Sale Securities [Table Text Block] | Available-for-sale securities were sold as follows:
|  | Three Months Ended September 30, 2013 |  | Nine Months Ended September 30, 2013 |  | Three Months Ended September 30, 2012 |  | Nine Months Ended September 30, 2012 |
|  | (In thousands) |
Proceeds from sales |  | $ | 300 |  | $ | 1,053 |  | $ | 719 |  | $ | 6,286 |
Gross realized gains |  |  | — |  |  | — |  |  | 11 |  |  | 30 |
Gross realized losses |  |  | — |  |  | — |  |  | — |  |  | (98) |

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- Definition Tabular disclosure of fair value of investments in debt and equity securities in an unrealized loss position categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 3: 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27198-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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