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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounts receivable and Property, plant and equipment (Details)	12 Months Ended
	Dec. 31, 2018 item	Dec. 31, 2016 USD ($)
Accounts receivable
Number of products consigned to customers | item	0
Long-lived assets
Impairment charge		$ 456,119
Production equipment
Long-lived assets
Impairment charge		$ 456,119
Production equipment | Minimum
Property, plant, and equipment
Useful lives	3 years
Production equipment | Maximum
Property, plant, and equipment
Useful lives	13 years
Office furniture, fixtures, and equipment | Minimum
Property, plant, and equipment
Useful lives	3 years
Office furniture, fixtures, and equipment | Maximum
Property, plant, and equipment
Useful lives	10 years
Buildings
Property, plant, and equipment
Useful lives	39 years
Building Improvements
Property, plant, and equipment
Useful lives	15 years

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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

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-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

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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