Quarterly report pursuant to Section 13 or 15(d)

Leases - Supplemental Balance Sheet Information (Details)

v3.20.2
Leases - Supplemental Balance Sheet Information (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Apr. 01, 2019
Leases        
Operating lease right-of-use assets $ 4,926 $ 5,118   $ 5,500
Operating lease right-of-use assets, balance sheet location   us-gaap:OtherAssetsNoncurrent us-gaap:OtherAssetsNoncurrent  
Operating lease liability, current 335 $ 443    
Operating lease liability, current, balance sheet location   cpst:NotesPayableAndCapitalLeaseObligationsNoncurrent cpst:NotesPayableAndCapitalLeaseObligationsNoncurrent  
Operating lease liability, non-current $ 4,827 $ 4,941    
Operating lease liability, non-current, balance sheet location cpst:NotesPayableAndCapitalLeaseObligationsNoncurrent cpst:NotesPayableAndCapitalLeaseObligationsNoncurrent    
Total operating lease liabilities $ 5,162 $ 5,384   $ 5,800