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INVESTMENTS: (Tables) | 12 Months Ended
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Dec. 31, 2014
Investments [Abstract] |
Available-for-sale Securities [Table Text Block] | The Company’s investments (short-term and long-term) consist of the following:
|  |  |  |  | Gross |  | Gross |  |  |  |
|  | Amortized Cost |  | Unrealized |  | Unrealized |  | Fair |
|  | Basis |  | Losses |  | Gains |  | Value |
|  | (In thousands) |
December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | 789 |  | $ | (1) |  | $ | 17 |  | $ | 805 |
Government-sponsored enterprise mortgage-backed securities |  |  | 102 |  |  | — |  |  | — |  |  | 102 |
Mutual funds |  |  | 2,135 |  |  | (131) |  |  | — |  |  | 2,004 |
Total investments |  | $ | 3,026 |  | $ | (132) |  | $ | 17 |  | $ | 2,911 |
|  |  |  |  | Gross |  | Gross |  |  |  |
|  | Amortized Cost |  | Unrealized |  | Unrealized |  | Fair |
|  | Basis |  | Losses |  | Gains |  | Value |
|  | (In thousands) |
December 31, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | 147 |  | $ | (2) |  | $ | 2 |  | $ | 147 |
Mutual funds |  |  | 2,528 |  |  | (213) |  |  | — |  |  | 2,315 |
Total investments |  | $ | 2,675 |  | $ | (215) |  | $ | 2 |  | $ | 2,462 |
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 |  | Unrealized |  | Fair |  | Unrealized |  | Total |
|  | Value |  | Losses |  | Value |  | Losses |  | Unrealized |
|  | < 1 Year |  | < 1 Year |  | > 1 Year |  | > 1 Year |  | Losses |
|  | (In thousands) |
December 31, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | 374 |  | $ | (1) |  | $ | 341 |  | $ | — |  | $ | (1) |
Government-sponsored enterprise mortgage-backed securities |  |  | — |  |  | — |  |  | 100 |  |  | — |  |  | — |
Mutual funds |  |  | — |  |  | — |  |  | 2,004 |  |  | (131) |  |  | (131) |
Total investments |  | $ | 374 |  | $ | (1) |  | $ | 2,445 |  | $ | (131) |  | $ | (132) |
|  | Fair |  | Unrealized |  | Fair |  | Unrealized |  | Total |
|  | Value |  | Losses |  | Value |  | Losses |  | Unrealized |
|  | < 1 Year |  | < 1 Year |  | > 1 Year |  | > 1 Year |  | Losses |
|  | (In thousands) |
December 31, 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | 119 |  | $ | (2) |  | $ | — |  | $ | — |  | $ | (2) |
Mutual funds |  |  | 765 |  |  | (27) |  |  | 1,477 |  |  | (186) |  |  | (213) |
Total investments |  | $ | 884 |  | $ | (29) |  | $ | 1,477 |  | $ | (186) |  | $ | (215) |
Investments Classified by Contractual Maturity Date [Table Text Block] | The amortized cost and estimated fair value of debt securities at December 31, 2014, by contractual maturity, are shown below.
|  | Amortized |  |  |
|  | Cost Basis |  | Fair Value |
|  | (In thousands) |
Within 1 year |  | $ | 106 |  | $ | 106 |
After 1 year through 5 years |  |  | 376 |  |  | 384 |
After 5 years through 10 years |  |  | 307 |  |  | 315 |
After 10 years |  |  | — |  |  | — |
Total debt securities |  | $ | 789 |  | $ | 805 |
Schedule Of Available For Sale Securities [Table Text Block] | Available-for-sale securities were sold as follows:
|  | Year Ended December 31, |
|  | 2014 |  | 2013 |
|  | (In thousands) |
Proceeds from sales |  | $ | 482 |  | $ | 1,665 |
Gross realized gains |  |  | — |  |  | — |
Gross realized losses |  |  | 4 |  |  | — |

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