- DefinitionAmount of valuation reserve for inventory.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
 -Topic 330
 -SubTopic 10
 -Name Accounting Standards Codification
 -Section S99
 -Paragraph 2
 -Subparagraph (SAB Topic 5.BB)
 -Publisher FASB
 -URI https://asc.fasb.org/1943274/2147480581/330-10-S99-2
Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
 -Topic 210
 -SubTopic 10
 -Name Accounting Standards Codification
 -Section S99
 -Paragraph 1
 -Subparagraph (SX 210.5-02(6))
 -Publisher FASB
 -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1
| Name: | us-gaap_InventoryValuationReserves | 
| Namespace Prefix: | us-gaap_ | 
| Data Type: | xbrli:monetaryItemType | 
| Balance Type: | credit | 
| Period Type: | instant |