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Inventories | 12 Months Ended
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Dec. 31, 2018
Inventory, Net [Abstract] |
Inventories [Text Block] | 6. Inventories The components of inventories were as follows:
| December 31, 2018 |  | December 31, 2017
Raw materials | $ | 439,616 |  | $ | 400,009
Work in progress | 154,878 |  | 128,296
Finished goods | 265,722 |  | 251,402
Subtotal | 860,216 |  | 779,707
Less reserves | (111,420) |  | (102,664)
Total | $ | 748,796 |  | $ | 677,043
At December 31, 2018 and 2017, approximately 11% of the Company's total inventories were accounted for using the LIFO method.

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- Definition The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -URI http://asc.fasb.org/topic&trid=2126998 + Details
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