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Inventories (Details Narrative) - USD ($) | 6 Months Ended
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Jun. 30, 2018 | Jun. 30, 2017
Inventory Disclosure [Abstract] |  |
Impairments for obsolete inventories | $ 33,000 | $ 165,000

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + Details
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Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
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Period Type: | duration