Note 4 - Revenue Recognition - Disaggregated Revenue (Details) - USD ($)	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Gross sales	$ 3,666,947	$ 2,872,722
Sales allowances and returns	(147,435)	(86,334)
Net Sales	3,519,512	2,786,388
Personal Care [Member]
Gross sales	2,123,114	1,484,932
Medical Product [Member]
Gross sales	540,470	536,338
Pharmaceuticals [Member]
Gross sales	974,120	821,176
Industrial And Other [Member]
Gross sales	$ 29,243	$ 30,276

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130539-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130543-203045

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