- DefinitionAmount of valuation reserve for inventory.
Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 330
 -SubTopic 10
 -Section S99
 -Paragraph 2
 -Subparagraph (SAB TOPIC 5.BB)
 -URI http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729
Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 210
 -SubTopic 10
 -Section S99
 -Paragraph 1
 -Subparagraph (SX 210.5-02.6(a))
 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682
Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 235
 -SubTopic 10
 -Section S99
 -Paragraph 4
 -Subparagraph (SX 210.12-09)
 -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690
Reference 4: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 330
 -SubTopic 10
 -Section 35
 -Paragraph 2
 -URI http://asc.fasb.org/extlink&oid=51655945&loc=d3e3927-108312
| Name: | us-gaap_InventoryValuationReserves | 
| Namespace Prefix: | us-gaap_ | 
| Data Type: | xbrli:monetaryItemType | 
| Balance Type: | credit | 
| Period Type: | instant |