Annual report pursuant to Section 13 and 15(d)

Inventories (Details)

v2.4.1.9
Inventories (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Inventories    
Raw materials $ 19,955us-gaap_InventoryRawMaterialsNetOfReserves $ 19,080us-gaap_InventoryRawMaterialsNetOfReserves
Work in process   5us-gaap_InventoryWorkInProcessNetOfReserves
Finished goods 5,400us-gaap_InventoryFinishedGoodsNetOfReserves 1,955us-gaap_InventoryFinishedGoodsNetOfReserves
Total 25,355cpst_InventoryCurrentAndNoncurrentNet 21,040cpst_InventoryCurrentAndNoncurrentNet
Less, non-current portion (2,258)us-gaap_InventoryNoncurrent (2,938)us-gaap_InventoryNoncurrent
Current portion $ 23,097us-gaap_InventoryNet $ 18,102us-gaap_InventoryNet
Weighted average age of non-current portion of inventories 2 years