CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash Flows From Operating Activities:
Net loss	$ (3,969)	$ (3,275)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	2,793	3,437
Amortization of right-of-use assets	242	240
Provision for doubtful accounts	65	9
Loss on disposal of property and equipment and lasers placed in service	23	29
Stock-based compensation	1,243	883
Deferred taxes	207	(111)
Amortization of debt discount	0	43
Amortization of deferred financing costs	0	64
Changes in operating assets and liabilities:
Accounts receivable	1,811	(261)
Inventories	(475)	(792)
Prepaid expenses and other assets	98	76
Accounts payable	1,608	233
Other accrued liabilities	(576)	437
Other liabilities	(126)	(61)
Operating lease liabilities	(226)	(219)
Deferred revenues	(968)	384
Net cash provided by operating activities	1,750	1,116
Cash Flows From Investing Activities:
Lasers placed-in-service	(1,430)	(1,370)
Purchases of property and equipment	(17)	(5)
Net cash used in investing activities	(1,447)	(1,375)
Cash Flows From Financing Activities:
Proceeds from note payable and long-term debt	2,528	0
Net cash provided by financing activities	2,528	0
Net increase (decrease) in cash and cash equivalents and restricted cash	2,831	(259)
Cash, cash equivalents and restricted cash, beginning of period	15,629	16,487
Cash, cash equivalents and restricted cash, end of period	18,460	16,228
Cash and cash equivalents	11,063	16,228
Restricted cash	7,397	0
Supplemental information of cash and non-cash transactions:
Cash paid for interest	157	604
Lease liabilities arising from obtaining right-of-use assets	$ 0	$ 1,632