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NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
6 Months Ended
Jun. 30, 2020
NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Summary of changes in the fair value of the liabilities

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Six Months Ended

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June 30, 

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2020

    

2019

Balance at beginning of period

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$

21.5

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$

21.9

Change in fair value

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(0.3)

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(0.4)

Balance at end of period

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$

21.2

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$

21.5