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Commitment and Contingencies Commitments and Contingencies (Details)
 9 Months Ended 12 Months Ended
Aug. 18, 2016
USD ($)
Feb. 06, 2015
USD ($)
Mar. 31, 2016
USD ($)
Members
Jun. 30, 2016
USD ($)
Option
Jun. 30, 2015
USD ($)
Members
Jun. 30, 2014
USD ($)
Loss Contingencies [Line Items]            
Repurchase Units, Number | Members     3   0  
Repurchase Dealers, Number | Members     2      
Unit repurchase loss     $ 30      
Monthly lease payments       $ 156,000    
Lease, Number of Options | Option       3    
Sale leaseback transaction, lease terms       10 years    
Operating leases, rental expense       $ 2,394,000 $ 2,256,000 $ 2,088,000
2016       2,224,000    
2017       2,175,000    
2018       2,208,000    
2019       2,212,000    
2020       2,217,000    
Thereafter       14,082,000    
Total       25,118,000    
Litigation settlement payable       3,268,000 $ 0 $ 20,000,000
Litigation settlement, amount   $ (2,250,000)   $ 20,000,000    
Subsequent Event [Member]            
Loss Contingencies [Line Items]            
Litigation settlement, amount $ 3,268,000