Business Segments and Geographic Data (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) Segment	Jun. 30, 2016 USD ($)	Dec. 31, 2016
Segment Reporting Information [Line Items]
Number of operating segments | Segment			3
Results of Operations from Business Segments [Abstract]
Revenues	$ 8,702	$ 7,739	$ 15,974	$ 15,359
Cost of revenues	3,173	3,139	5,906	6,561
Gross profit	$ 5,529	$ 4,600	$ 10,068	$ 8,798
Gross profit %	63.50%	59.40%	63.00%	57.30%
Allocated operating expenses [Abstract]
Engineering and product development	$ 423	$ 634	$ 898	$ 1,159
Selling and marketing expenses	3,077	3,523	6,227	7,233
Unallocated operating expenses	1,720	1,901	3,321	4,002
Total operating expenses	5,220	6,058	10,446	12,394
Operating profit (loss) before other income (expense), net	309	(1,458)	(378)	(3,596)
Interest expense, net	(1,575)	(1,178)	(2,921)	(2,396)
Change in fair value of warrant liability	128	3,199	(4)	5,184
Other income (expense), net	6	(4)	6	(4)
(Loss) income before income taxes	(1,132)	559	$ (3,297)	(812)
Long Lived Assets [Member] | Geographic Concentration Risk [Member] | Domestic [Member]
Allocated operating expenses [Abstract]
Concentration risk percentage			100.00%		100.00%
Operating Segments [Member] | Dermatology Recurring Procedures [Member]
Results of Operations from Business Segments [Abstract]
Revenues	6,202	6,093	$ 11,933	11,621
Cost of revenues	1,843	2,258	3,885	4,561
Gross profit	$ 4,359	$ 3,835	$ 8,048	$ 7,060
Gross profit %	70.30%	63.00%	67.40%	60.80%
Allocated operating expenses [Abstract]
Engineering and product development	$ 340	$ 323	$ 756	$ 634
Selling and marketing expenses	2,561	3,349	5,510	6,860
Unallocated operating expenses	0	0	0	0
Total operating expenses	2,901	3,672	6,266	7,494
Operating profit (loss) before other income (expense), net	1,458	163	1,782	(434)
Interest expense, net	0	0	0	0
Change in fair value of warrant liability	0	0	0	0
Other income (expense), net	0	0	0	0
(Loss) income before income taxes	1,458	163	1,782	(434)
Operating Segments [Member] | Dermatology Procedures Equipment [Member]
Results of Operations from Business Segments [Abstract]
Revenues	2,496	1,634	4,033	3,624
Cost of revenues	1,330	812	2,021	1,764
Gross profit	$ 1,166	$ 822	$ 2,012	$ 1,860
Gross profit %	46.70%	50.30%	49.90%	51.30%
Allocated operating expenses [Abstract]
Engineering and product development	$ 83	$ 54	$ 141	$ 116
Selling and marketing expenses	516	96	717	203
Unallocated operating expenses	0	0	0	0
Total operating expenses	599	150	858	319
Operating profit (loss) before other income (expense), net	567	672	1,154	1,541
Interest expense, net	0	0	0	0
Change in fair value of warrant liability	0	0	0	0
Other income (expense), net	0	0	0	0
(Loss) income before income taxes	567	672	1,154	1,541
Operating Segments [Member] | Dermatology Imaging [Member]
Results of Operations from Business Segments [Abstract]
Revenues	4	12	8	114
Cost of revenues	0	69	0	236
Gross profit	$ 4	$ (57)	$ 8	$ (122)
Gross profit %	100.00%	(475.00%)	100.00%	(107.00%)
Allocated operating expenses [Abstract]
Engineering and product development	$ 0	$ 257	$ 1	$ 409
Selling and marketing expenses	0	78	0	170
Unallocated operating expenses	0	0	0	0
Total operating expenses	0	335	1	579
Operating profit (loss) before other income (expense), net	4	(392)	7	(701)
Interest expense, net	0	0	0	0
Change in fair value of warrant liability	0	0	0	0
Other income (expense), net	0	0	0	0
(Loss) income before income taxes	4	(392)	7	(701)
Reportable Geographical Components [Member] | Domestic [Member]
Results of Operations from Business Segments [Abstract]
Revenues	7,086	6,265	13,275	12,158
Reportable Geographical Components [Member] | Foreign [Member]
Results of Operations from Business Segments [Abstract]
Revenues	$ 1,616	$ 1,474	$ 2,699	$ 3,201