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STOCK COMPENSATION PLANS STOCK COMPENSATION PLANS (Tables) | 6 Months Ended
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Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] | The following assumptions were utilized to estimate the fair value for the 2017 performance share grants:
Grant Date |  | Grant Date Market Price |  | Average Expected Term (Years) |  | Expected Volatility |  | Risk-Free Interest Rate |  | Dividend Yield |  | Fair Value |  | Fair Value (Percent of Grant Date Market Price)
February 21, 2017 |  | $ | 11.67 |  |  | 2.86 |  | 92.1% |  | 1.51% |  | —% |  | $ | 19.69 |  |  | 168.72%
June 26, 2017 |  | $ | 6.64 |  |  | 2.51 |  | 92.8% |  | 1.45% |  | —% |  | $ | 10.74 |  |  | 161.75%

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of employee stock purchase plans, including, but not limited to: (a) expected term, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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