CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 30,078	$ 19,719
Accounts receivable, net	8,668	6,111
Inventories	5,814	5,182
Prepaid expenses	993	462
Other current assets	52	105
Total current assets	45,605	31,579
Property and equipment, net	6,833	5,962
Intangible assets, net	7,452	8,324
Other non-current assets	900	296
Goodwill	22	22
Total assets	60,812	46,183
Current liabilities:
Accounts payable	7,075	5,167
Accrued compensation and benefits	2,614	1,599
Accrued expenses and other current liabilities	2,359	2,176
Line of credit, current	1,500	1,807
Term loan, current	926	6,466
Total current liabilities	14,474	17,215
Term loan, non-current	10,908	9,775
Other non-current liabilities	75
Deferred rent, non-current	2,404	2,826
Deferred tax liability, non-current	1	2
Total liabilities	27,862	29,818
Commitments and contingencies (See Note 8)
Stockholders’ equity:
Preferred stock, $0.0001 par value, 5,000,000 shares authorized as of December 31, 2017 and December 31, 2016; no shares issued and outstanding as of December 31, 2017 and December 31, 2016
Common stock, $0.0001 par value, 100,000,000 shares authorized; 21,291,833 and 15,494,308 shares issued and outstanding as of December 31, 2017 and December 31, 2016 respectively	2	2
Additional paid-in capital	133,087	110,749
Accumulated other comprehensive loss	(295)	(230)
Accumulated deficit	(99,844)	(94,156)
Total stockholders’ equity	32,950	16,365
Total liabilities and stockholders’ equity	$ 60,812	$ 46,183