Inventories Inventories - Valuation Reserve Accounts (Details) - SEC Schedule, 12-09, Reserve, Inventory [Member] - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2020 |
Mar. 31, 2019 |
Mar. 31, 2018 |
|
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance, beginning of period | $ 2,199 | $ 2,077 | $ 1,329 |
| Additions in reserve | 172 | 166 | 721 |
| Charged to reserve | 326 | 44 | 27 |
| Balance, end of period | $ 2,045 | $ 2,199 | $ 2,077 |
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves from adjustment. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|