CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows From Operating Activities:
Net loss	$ (17,111)	$ (2,448)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	4,811	4,844
Provision for doubtful accounts	58	91
Loss on disposal of property, plant and equipment	0	124
Gain on cancelation of distributor rights agreement	(40)	0
Intangible asset write-off	23	0
Stock-based compensation	136	401
Deferred tax provision	180	180
Amortization of debt discount	2,344	1,821
Amortization of deferred financing costs	171	145
Loss on extinguishment of debt	11,799	0
Change in fair value of warrant liability	(77)	(5,316)
Changes in operating assets and liabilities:
Accounts receivable	130	1,041
Inventories	(716)	899
Prepaid expenses and other assets	406	202
Accounts payable	71	(2,559)
Other accrued liabilities	(162)	(623)
Other liabilities	108	(40)
Deferred revenues	115	154
Net cash provided by (used in) operating activities	2,246	(1,084)
Cash Flows From Investing Activities:
Lasers placed-in-service, net	(1,450)	(607)
Purchases of property and equipment, net	(321)	0
Payments on distributor rights liability	(115)	0
Acquisition costs, net of cash received	0	125
Restricted cash	0	15
Net cash used in investing activities	(1,886)	(467)
Cash Flows From Financing Activities:
Proceeds from long-term debt	0	1,500
Repayments of long-term debt	(857)	0
Payments on notes payable	(304)	(299)
Net cash (used in ) provided by financing activities	(1,161)	1,201
Effect of exchange rate changes on cash	0	4
Net decrease in cash and cash equivalents	(801)	(346)
Cash and cash equivalents, beginning of period	3,928	3,303
Cash and cash equivalents, end of period	3,127	2,957
Supplemental information:
Cash paid for interest	1,934	1,517
Supplemental information of non-cash investing and financing activities:
Conversion of senior secured convertible debentures into common stock	262	248
Conversion of series A convertible preferred stock into common stock		309
Recognition of warrants issued as debt discount	0	47
Reclassification of warrant liabilities to equity	0	1,541
Acquisition of distributor rights asset and license liability	286	0
Issuance of convertible preferred stock in exchange for convertible debentures	$ 25,910	$ 0