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Income Taxes Net Operating Loss Carryforwards (Details) - State and Local Jurisdiction [Member]
$ in Millions
Jun. 30, 2017
USD ($)
Operating Loss Carryforwards [Line Items]  
Operating Loss Carryforwards $ 4.7
Expiring between 2028 and 2032 [Member]  
Operating Loss Carryforwards [Line Items]  
Operating Loss Carryforwards 3.4
Expiring between 2022 and 2027 [Member]  
Operating Loss Carryforwards [Line Items]  
Operating Loss Carryforwards $ 1.3