CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash	$ 42,582	$ 1,609
Accounts receivable - trade, less allowance for doubtful accounts of $143 and $152, respectively	5,603	4,098
Prepaid expenses and other current assets	831	233
Total current assets	69,561	20,826
Property and equipment, net	10,391	8,592
Other assets:
Amortizable intangible assets, net	2,089	998
Other intangible assets	260	260
Total other assets	2,349	1,258
Total assets	82,301	30,676
Current liabilities:
Accounts payable - trade	5,495	3,543
Accrued compensation and benefits	2,905	2,219
Current portion of long-term debt with affiliate	113	107
Other current liabilities	954	1,382
Total current liabilities	9,467	7,251
Long-term liabilities:
Long-term debt with affiliate, net of current portion	21,418	12,931
Revolving credit facility with affiliate	3,921	4,500
Total long-term liabilities	25,339	17,431
Total liabilities	34,806	24,682
Commitments and contingencies (Note 16)
Redeemable convertible preferred stock:
Redeemable convertible preferred stock	0	71,303
Stockholders' equity (deficit):
Common stock, $0.00025 par value; 50,000,000 shares and 12,000,000 shares authorized at December 31, 2017 and 2016, respectively; 12,621,781 shares and 2,421,599 shares issued and outstanding as of December 31, 2017 and 2016, respectively	2	1
Additional paid-in capital	150,424	12,824
Accumulated deficit	(103,066)	(78,134)
Accumulated other comprehensive income	135	0
Total stockholders' equity (deficit)	47,495	(65,309)
Total liabilities, redeemable convertible preferred stock and stockholders' equity (deficit)	82,301	30,676
Series A
Redeemable convertible preferred stock:
Redeemable convertible preferred stock	0	23,439
Series B
Redeemable convertible preferred stock:
Redeemable convertible preferred stock	0	47,864
U.S.
Current assets:
Inventories, net	19,498	13,962
International
Current assets:
Inventories, net	$ 1,047	$ 924

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.