Segments and Geographic Area (Summary of Segment Information) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013 segment	Jun. 30, 2012	Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of Operating Segments			2
Net sales	$ 6,694,319	$ 6,548,991	$ 12,385,500	$ 12,617,370
Depreciation and amortization	147,335	143,642	294,343	282,883
Operating profit (loss)	(197,852)	525,311	(174,432)	438,275
Purchase of property and equipment	11,000	688,000	11,292	705,175
Total assets	16,957,431	19,052,000	16,957,431	19,052,000	18,014,421
Nutritional Products [Member]
Segment Reporting Information [Line Items]
Net sales	5,102,000	4,731,000	9,432,000	9,352,000
Depreciation and amortization	132,000	124,000	264,000	243,000
Operating profit (loss)	(204,000)	355,000	(157,000)	243,000
Purchase of property and equipment	11,000	688,000	11,000	705,000
Total assets	14,167,000	16,298,000	14,167,000	16,298,000
Medical Products [Member]
Segment Reporting Information [Line Items]
Net sales	1,593,000	1,818,000	2,954,000	3,265,000
Depreciation and amortization	16,000	20,000	31,000	40,000
Operating profit (loss)	7,000	170,000	(17,000)	195,000
Purchase of property and equipment	0	0	0	0
Total assets	$ 2,790,000	$ 2,754,000	$ 2,790,000	$ 2,754,000
Minimum [Member] | Nutritional Products [Member]
Segment Reporting Information [Line Items]
Number of products			100
Minimum [Member] | Medical Products [Member]
Segment Reporting Information [Line Items]
Number of products			40