CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash Flows From Operating Activities:
Net loss	$ (3,868)	$ (17,111)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	3,993	4,811
Provision for doubtful accounts	53	58
Loss on disposal of property and equipment	503	0
Gain on cancelation of distributor rights agreement	0	(40)
Net impairment of intangible asset and liability	(11)	23
Stock-based compensation	570	136
Deferred tax provision	(22)	180
Amortization of debt discount	44	2,344
Amortization of deferred financing costs	79	171
Loss on extinguishment of debt	0	11,799
Change in fair value of warrant liability	101	(77)
Changes in operating assets and liabilities:
Accounts receivable	361	130
Inventories	521	(716)
Prepaid expenses and other assets	(137)	406
Accounts payable	(614)	71
Other accrued liabilities	423	(162)
Other liabilities	(3)	108
Deferred revenues	(198)	115
Net cash provided by operating activities	1,795	2,246
Cash Flows From Investing Activities:
Lasers placed-in-service	(1,254)	(1,450)
Purchases of property and equipment, net	(6)	(321)
Payments on distributor rights liability	(23)	(115)
Net cash used in investing activities	(1,283)	(1,886)
Cash Flows From Financing Activities:
Proceeds from issuance of common stock	14,664	0
Repayments of long-term debt	(3,000)	(857)
Payments on notes payable	(357)	(304)
Net cash provided by (used in) financing activities	11,307	(1,161)
Net increase (decrease) in cash and cash equivalents	11,819	(801)
Cash and cash equivalents, beginning of period	4,069	3,928
Cash and cash equivalents, end of period	15,888	3,127
Supplemental information:
Cash paid for interest	808	1,934
Supplemental information of non-cash investing and financing activities:
Conversion of senior secured convertible debentures into common stock	0	262
Acquisition of distributor rights asset and license liability	0	286
Issuance of convertible preferred stock in exchange for convertible debentures	$ 0	$ 25,910