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Other Investments	12 Months Ended
Other Investments	Dec. 31, 2017
Other Investments
Other Investments	Note 7. Other Investments During the second quarter of 2015, we re-classified our sole minority investment under the cost method as an available-for-sale security when we determined that there was sufficient trading volume in the exchange listing the company, GHI, for the stock to be deemed readily marketable. Since 2015 we no longer maintain any investments under the cost method.