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Present value of net minimum lease payments (Details)
$ in Thousands
Mar. 31, 2022
USD ($)
Operating Leases [Member]  
Lessee, Lease, Description [Line Items]  
  $ 162
  167
  129
  137
  137
  380
  1,112
  (146)
  966
Finance Leases [Member]  
Lessee, Lease, Description [Line Items]  
  223
  304
  314
  323
  334
  4,968
  6,466
  (2,103)
  $ 4,363