Segment Information - Information on Segments (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Net sales	$ 10,340,600	$ 9,936,900	$ 30,657,000	$ 24,274,800
Operating costs and expenses:
Cost of sales	5,420,000	5,830,600	16,649,000	13,454,600
Advertising expenses	109,800	91,700	531,100	1,426,600
Selling expenses	1,583,400	1,717,300	4,878,600	4,184,300
General and administrative expenses	1,062,700	1,218,800	3,166,300	3,433,000
Total operating costs and expenses	8,175,900	8,858,400	25,225,000	22,498,500
Income from operations	2,164,700	1,078,500	5,432,000	1,776,300
Interest expense	(26,400)	(60,400)	(101,500)	(77,500)
Income before income taxes	2,138,300	1,019,100	5,330,500	1,711,400
Household Products
Segment Reporting Information [Line Items]
Net sales	1,409,000	1,453,400	4,189,400	4,490,300
Operating costs and expenses:
Cost of sales	661,600	690,000	2,010,600	2,148,500
Advertising expenses	37,700	10,300	353,900	889,100
Selling expenses	332,000	276,800	977,000	1,118,400
General and administrative expenses	367,200	328,900	1,046,400	1,136,900
Total operating costs and expenses	1,398,500	1,306,000	4,387,900	5,292,900
Income from operations	10,500	147,400	(198,500)	(802,600)
Other (expense) income		(1,100)		2,300
Interest expense				(3,500)
Income before income taxes	10,500	146,300	(198,500)	(803,800)
Skin And Hair Care Products
Segment Reporting Information [Line Items]
Net sales	8,931,600	8,483,500	26,467,600	19,784,500
Operating costs and expenses:
Cost of sales	4,758,400	5,140,600	14,638,400	11,306,100
Advertising expenses	72,100	81,400	177,200	537,500
Selling expenses	1,251,400	1,440,500	3,901,600	3,065,900
General and administrative expenses	695,500	889,900	2,119,900	2,296,100
Total operating costs and expenses	6,777,400	7,552,400	20,837,100	17,205,600
Income from operations	2,154,200	931,100	5,630,500	2,578,900
Other (expense) income		2,100		10,300
Interest expense	(26,400)	(60,400)	(101,500)	(74,000)
Income before income taxes	$ 2,127,800	$ 872,800	$ 5,529,000	$ 2,515,200