Business Segments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) Segment	Dec. 31, 2019 USD ($)
Business Segments [Abstract]
Number of operating segments | Segment	2
Results of Operations from Business Segments [Abstract]
Revenues	$ 23,090	$ 31,586
Cost of revenues	8,956	11,316
Gross profit	$ 14,134	$ 20,270
Gross profit %	61.20%	64.20%
Allocated operating expenses [Abstract]
Engineering and product development	$ 1,274	$ 1,002
Selling and marketing expenses	9,038	12,003
Unallocated operating expenses	7,898	10,275
Total operating expenses	18,210	23,280
Income (loss) from operations	(4,076)	(3,010)
Interest expense, net	(61)	(515)
Loss on extinguishment of debt	0	(414)
Income (loss) before income taxes	(4,137)	(3,939)
Assets	46,778	47,343
Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	17,409	23,713
Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	5,681	7,837
Operating Segments [Member] | Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	17,409	23,713
Cost of revenues	5,832	7,033
Gross profit	$ 11,577	$ 16,680
Gross profit %	66.50%	70.30%
Allocated operating expenses [Abstract]
Engineering and product development	$ 1,101	$ 845
Selling and marketing expenses	8,437	11,191
Unallocated operating expenses	0	0
Total operating expenses	9,538	12,036
Income (loss) from operations	2,039	4,644
Interest expense, net	0	0
Loss on extinguishment of debt		0
Income (loss) before income taxes	2,039	4,644
Assets	25,112	27,620
Operating Segments [Member] | Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	5,681	7,873
Cost of revenues	3,124	4,283
Gross profit	$ 2,557	$ 3,590
Gross profit %	45.00%	45.60%
Allocated operating expenses [Abstract]
Engineering and product development	$ 173	$ 157
Selling and marketing expenses	601	812
Unallocated operating expenses	0	0
Total operating expenses	774	969
Income (loss) from operations	1,783	2,621
Interest expense, net	0	0
Loss on extinguishment of debt		0
Income (loss) before income taxes	1,783	2,621
Assets	3,052	3,382
Other Unallocated Assets [Member]
Allocated operating expenses [Abstract]
Assets	$ 18,614	$ 16,341