XML 33 R23.htm IDEA: XBRL DOCUMENT
v3.19.1

Revenue (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2019
Revenue [Abstract] |
Disaggregation of Revenue |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | Three Months Ended
﻿ |  | March 31,
﻿ |  | 2019 |  | 2018
﻿Display products |  | $ | 795 |  | $ | 732
﻿ |  |  |  |  |  |
﻿Telecommunication products |  |  | 1,064 |  |  | 886
﻿ |  |  |  |  |  |
﻿Specialty glass products |  |  | 309 |  |  | 278
﻿ |  |  |  |  |  |
﻿Environmental substrate and filter products |  |  | 351 |  |  | 322
﻿ |  |  |  |  |  |
﻿Life science products |  |  | 239 |  |  | 232
﻿ |  |  |  |  |  |
﻿All Other |  |  | 54 |  |  | 50
﻿ |  | $ | 2,812 |  | $ | 2,500
﻿ |  |  |  |  |  |
﻿

X
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
Name: | us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration