CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue:
Product revenue	$ 24,621	$ 20,731	$ 71,391	$ 58,732
Service revenue	8,647	3,443	19,222	8,017
Total revenue	33,268	24,174	90,613	66,749
Cost of revenue, exclusive of depreciation and amortization shown below:
Product cost	18,979	15,951	54,847	44,103
Service cost	4,486	1,232	9,241	3,135
Total cost of revenue	23,465	17,183	64,088	47,238
Gross profit	9,803	6,991	26,525	19,511
Operating expenses:
Research and development	1,527	1,028	4,037	2,878
Sales and marketing	1,325	881	3,869	2,511
General and administrative	4,098	2,053	16,097	5,762
Change in fair value of acquisition-related contingent consideration expense	923	47	960	146
Depreciation and amortization	2,166	1,276	5,730	3,415
Total operating expenses	10,039	5,285	30,693	14,712
Income (loss) from operations	(236)	1,706	(4,168)	4,799
Other (income) expense:
Change in fair value of warrant liability		(626)		(639)
Interest expense	174	1,242	327	4,250
Loss on extinguishment of debt		1,396		1,396
Total other expense	174	2,012	327	5,007
Income (loss) before income taxes	(410)	(306)	(4,495)	(208)
Income tax (benefit) expense	(8,105)	(164)	(7,845)	11
Net income (loss)	7,695	(142)	3,350	(219)
Net income (loss) attributable to common stockholders:
Basic	7,695	1,228	3,350	1,080
Diluted	$ 7,695	$ (803)	$ 3,350	$ (894)
Net income (loss) per share attributable to common stockholders:
Basic (in dollars per share)	$ 0.46	$ 0.25	$ 0.20	$ 0.22
Diluted (in dollars per share)	$ 0.41	$ (0.08)	$ 0.18	$ (0.09)
Weighted average common shares outstanding
Basic (in shares)	16,699,102	4,918,885	16,483,169	4,817,285
Diluted (in shares)	18,646,031	10,333,723	18,411,800	10,232,050