CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash Flows From Operating Activities:
Net loss	$ (3,578)	$ (3,440)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	2,741	3,209
Provision for doubtful accounts	(49)	22
Loss on disposal of property and equipment	411	0
Net impairment of intangible asset and liability	(11)	0
Stock-based compensation	203	73
Deferred tax provision	80	120
Amortization of debt discount	39	1,618
Amortization of deferred financing costs	42	115
Change in fair value of warrant liability	22	4
Changes in operating assets and liabilities:
Accounts receivable	710	(147)
Inventories	596	(670)
Prepaid expenses and other assets	(296)	243
Accounts payable	(895)	403
Other accrued liabilities	(206)	(115)
Other liabilities	255	84
Deferred revenues	(132)	178
Net cash (used in) provided by operating activities	(68)	1,697
Cash Flows From Investing Activities:
Lasers placed-in-service, net	(885)	(1,205)
Purchases of property and equipment, net	(6)	(206)
Payments on distributor rights liability	(23)	(75)
Net cash used in investing activities	(914)	(1,486)
Cash Flows From Financing Activities:
Proceeds from issuance of common stock	14,664	0
Payments on notes payable	(3,306)	(201)
Net cash provided by (used in) financing activities	11,358	(201)
Net increase in cash and cash equivalents	10,376	10
Cash and cash equivalents, beginning of period	4,069	3,928
Cash and cash equivalents, end of period	14,445	3,938
Supplemental information:
Cash paid for interest	691	1,133
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	$ 900