CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenue:
Product revenue	$ 24,074	$ 20,216	$ 46,770	$ 38,001
Service revenue	5,582	2,202	10,575	4,574
Total revenue	29,656	22,418	57,345	42,575
Cost of revenue, exclusive of depreciation and amortization shown below:
Product cost	18,463	15,170	35,868	28,152
Service cost	2,505	952	4,755	1,903
Total cost of revenue	20,968	16,122	40,623	30,055
Gross profit	8,688	6,296	16,722	12,520
Operating expenses:
Research and development	1,291	961	2,510	1,850
Sales and marketing	1,314	860	2,544	1,630
General and administrative	5,490	1,816	11,999	3,709
Change in fair value of acquisition-related contingent consideration expense	16	45	37	99
Depreciation and amortization	1,799	1,135	3,564	2,139
Total operating expenses	9,910	4,817	20,654	9,427
(Loss) income from operations	(1,222)	1,479	(3,932)	3,093
Other (income) expense:
Change in fair value of warrant liability		121		(13)
Interest expense	77	1,505	153	3,008
Total other expense	77	1,626	153	2,995
(Loss) income before income taxes	(1,299)	(147)	(4,085)	98
Income tax expense	165	139	260	175
Net loss	(1,464)	(286)	(4,345)	(77)
Net loss attributable to common stockholders, basic	(1,464)	(890)	(4,345)	(279)
Net loss attributable to common stockholders, diluted	$ (1,464)	$ (890)	$ (4,345)	$ (279)
Net loss per share attributable to common stock holders, basic and diluted (in dollars per share)	$ (0.09)	$ (0.18)	$ (0.27)	$ (0.06)
Weighted average common shares outstanding basic and diluted (in shares)	16,506,585	4,860,758	16,373,413	4,765,977