Quarterly report pursuant to Section 13 or 15(d)

Plant, Property and Equipment (Summary of PPE) (Details)

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Plant, Property and Equipment (Summary of PPE) (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Jun. 30, 2019
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 13,116   $ 12,984
Less: accumulated depreciation (7,810)   (7,395)
Plant, property and equipment, net 6,448   6,731
Depreciation 415 $ 445  
Office furniture, and fixtures      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 2,080   2,080
Computer equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 802   798
Computer software      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 4,215   4,111
Plant equipment      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 2,896   2,872
Building      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 319   319
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross 2,804   2,804
Property and equipment not placed in service      
Property, Plant and Equipment [Line Items]      
Plant, property and equipment, net 1,106   1,106
Land      
Property, Plant and Equipment [Line Items]      
Plant, property and equipment, net $ 36   $ 36