CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (3,129)	$ (598)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	815	159
Bad debt expense	13	(4)
Amortization of debt discount	34	0
Amortization of right of use asset	302
Payments on lease liability	(317)
Loss on disposal of equipment	22	0
Stock-based compensation	32	29
Impairment charges	541	0
Changes in operating assets and liabilities:
Accounts receivable	(1,679)	(67)
Inventory	377	0
Prepaid expenses and other current assets	(133)	(72)
Other assets	(59)	24
Accounts payable	274	(15)
Accrued expenses and other current liabilities	(398)	136
Deferred revenue	772	0
Other liabilities	(3)	0
Net cash used in operating activities	(2,536)	(408)
Cash flows from investing activities:
Purchases of property and equipment	0	(9)
Net cash used in investing activities	0	(9)
Cash flows from financing activities:
Preferred stock dividends	0	0
Purchase of treasury stock	7	1
Net cash used in financing activities	(7)	(1)
Decrease in cash and cash equivalents	(2,543)	(418)
Cash at beginning of period	4,602	2,007
Cash at end of period	2,059	1,589
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	90	0
Non-cash investing and financing activities:
Accrued preferred stock dividends	4	15
Issue of preferred stock in exchange for accrued dividends	$ 98	$ 0