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Note 9 - Investments (Tables) | 6 Months Ended
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Jun. 30, 2016
Notes Tables |
Investment Gain on Realignment [Table Text Block] |
Cash | $ | 4,818
Carrying Value of Dow Corning Equity Investment |  | (1,560)
Carrying Value of HSG Equity Investment |  | (383)
Other (1) |  | (199)
Gain | $ | 2,676
Equity Method Investments [Table Text Block] |
| Ownership interest |  | June 30, 2016 |  | December 31, 2015
Affiliated companies accounted for by the equity method |  |  |  |  |  |  |  |  |
Dow Corning (1) |  | 50% |  |  |  |  |  | $ | 1,483
All other (1) | 20% | to | 50% |  | $ | 279 |  |  | 422
|  |  |  |  |  | 279 |  |  | 1,905
Other investments |  |  |  |  |  | 67 |  |  | 70
Subtotal Investment Assets |  |  |  |  | $ | 346 |  | $ | 1,975
Affiliated companies accounted for by the equity method |  |  |  |  |  |  |  |  |
HSG (2)(3) |  | 50% |  |  | $ | 361 |  |  |
Subtotal Investment Liabilities |  |  |  |  | $ | 361 |  |  |
Schedule of Affiliate Result of Operations [Table Text Block] |
| Three months ended June 30, |  | Six months ended June 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Statement of Operations: |  |  |  |  |  |  |  |  |  |  |
Net sales | $ | 898 |  | $ | 1,424 |  | $ | 2,215 |  | $ | 2,788
Gross profit (1) | $ | 238 |  | $ | 364 |  | $ | 588 |  | $ | 722
Net income attributable to Dow Corning (2) | $ | 52 |  | $ | 113 |  | $ | 163 |  | $ | 298
Corning’s equity in earnings of Dow Corning | $ | 26 |  | $ | 57 |  | $ | 82 |  | $ | 149

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