| Schedule of Segment Reporting Information, by Segment [Table Text Block] |
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| | | Dental | | $ | 9,502,276 | | | $ | 11,279,886 | | | Medical | | | 119,800 | | | | 2,000 | | | Total net sales | | $ | 9,622,076 | | | $ | 11,281,886 | | | | | | | | | | | | | | |
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| | | Dental | | $ | 1,373,178 | | | $ | 3,127,570 | | | Medical | | | (2,611,231 | ) | | | (2,389,145 | ) | | Corporate | | | (6,761,282 | ) | | | (5,972,743 | ) | | Total operating loss | | $ | (7,999,335 | ) | | $ | (5,234,318 | ) | | | | | | | | | | | Depreciation and Amortization: | |
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| | | Dental | | $ | 16,474 | | | $ | 17,305 | | | Medical | | | 24,492 | | | | 26,950 | | | Corporate | | | 840,319 | | | | 528,895 | | | Total depreciation and amortization | | $ | 881,285 | | | $ | 573,150 | | | | | | | | | | | | Income (loss) before taxes and equity in earnings of affiliates: | |
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| | | Dental | | $ | 1,363,662 | | | $ | 3,136,167 | | | Medical | | | (2,704,630 | ) | | | (2,391,082 | ) | | Corporate | | | (6,658,152 | ) | | | (5,975,035 | ) | | Total loss before taxes and equity in earnings of affiliate | | $ | (7,999,120 | ) | | $ | (5,229,950 | ) | | | |
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| | | Dental | | $ | 5,169,944 | | | $ | 10,255,144 | | | Medical | | | 328,208 | | | | 655,513 | | | Corporate | | | 902,816 | | | | 4,718,130 | | | Total assets | | $ | 6,400,968 | | | $ | 15,628,787 | | |
| Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] |
| | | 2018 | | | | | Dental | | | Medical | | | Total | | | Domestic US / Canada: | | | | | | | | | | | | | | Device | | $ | 491,375 | | | $ | 32,500 | | | $ | 523,875 | | | Handpieces | | | 4,211,243 | | | | - | | | | 4,211,243 | | | Other | | | 96,088 | | | | - | | | | 96,088 | | | Total Domestic US / Canada | | $ | 4,798,706 | | | $ | 32,500 | | | $ | 4,831,206 | | | | | | | | | | | | | | | | | International Rest of the World: | | | | | | | | | | | | | | Device | | $ | 1,292,844 | | | $ | 81,000 | | | $ | 1,373,844 | | | Handpieces | | | 2,444,639 | | | | 6,100 | | | | 2,450,739 | | | Other | | | 66,087 | | | | 200 | | | | 66,287 | | | Total International Rest of the World | | $ | 3,803,570 | | | $ | 87,300 | | | $ | 3,890,870 | | | | | | | | | | | | | | | | | International China: | | | | | | | | | | | | | | Device | | $ | 109,374 | | | $ | - | | | $ | 109,374 | | | Handpieces | | | 790,626 | | | | - | | | | 790,626 | | | Other | | | - | | | | - | | | | - | | | Total International China | | $ | 900,000 | | | $ | - | | | $ | 900,000 | | | | | | | | | | | | | | | | | Total Product Sales | | $ | 9,502,276 | | | $ | 119,800 | | | $ | 9,622,076 | | | | | 2017 | | | | | Dental | | | Medical | | | Total | | | Domestic US / Canada: | | | | | | | | | | | | | | Device | | $ | 914,495 | | | $ | - | | | $ | 914,495 | | | Handpieces | | | 4,346,664 | | | | - | | | | 4,346,664 | | | Other | | | 78,550 | | | | - | | | | 78,550 | | | Total Domestic US / Canada | | $ | 5,339,709 | | | $ | - | | | $ | 5,339,709 | | | | | | | | | | | | | | | | | International Rest of the World: | | | | | | | | | | | | | | Device | | $ | 1,427,016 | | | $ | - | | | $ | 1,427,016 | | | Handpieces | | | 2,325,622 | | | | 2,000 | | | | 2,327,622 | | | Other | | | 116,539 | | | | - | | | | 116,539 | | | Total International Rest of the World | | $ | 3,869,177 | | | $ | 2,000 | | | $ | 3,871,177 | | | | | | | | | | | | | | | | | International China: | | | | | | | | | | | | | | Device | | $ | 643,600 | | | $ | - | | | $ | 643,600 | | | Handpieces | | | 1,425,600 | | | | - | | | | 1,425,600 | | | Other | | | 1,800 | | | | - | | | | 1,800 | | | Total International China | | $ | 2,071,000 | | | $ | - | | | $ | 2,071,000 | | | | | | | | | | | | | | | | | Total Product Sales | | $ | 11,279,886 | | | $ | 2,000 | | | $ | 11,281,886 | | |