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PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Jun. 30, 2021
Property, Plant and Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT PROPERTY, PLANT AND EQUIPMENT
At June 30, 2021 and 2020, property, plant and equipment consisted of the following (in thousands):
  June 30,
Useful Life 20212020
Furniture and fixtures
3 to 5 years
$248 $245 
Plant and equipment
3 to 17 years
11,305 9,053 
Manufacturing
15 years
169 169 
Computers and software
3 to 5 years
2,435 2,132 
Leasehold improvementsLife of Lease6,652 3,192 
Land 97 19 
Building40 years938 — 
Construction-in-progress 296 3,507 
  22,140 18,317 
Less: accumulated depreciation 10,390 9,190 
Less: financing lease ROU asset, net (1)
907 387 
Net property, plant and equipment $10,843 $8,740 
(1) Financing lease ROU assets in the net amount of $0.9 million and $0.4 million as of June 30, 2021 and 2020, respectively, are incorporated with leasehold improvements. Accumulated depreciation related to financing lease assets was $0.1 million and less than $0.1 million as of June 30, 2021 and 2020, respectively.
Total depreciation expense in the fiscal years ended June 30, 2021, 2020 and 2019 was $1.4 million, $1.0 million and $1.1 million, respectively. Depreciation expense included in cost of revenues was $1.1 million for the fiscal year ended 2021, and $0.8 million for each of the fiscal years ended 2020 and 2019.