Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Operating activities
Net loss	$ (3,325)	$ (809)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of property and equipment	29	28
Amortization of license and supply agreement	134	190
Non-cash stock-based compensation, including stock options and restricted stock	985	772
Loss on extinguishment of debt	199
Inventory reserve	70
Provision for bad debt expense	40
Amortization of debt discount	34	116
Loss on disposal of equipment	10
Loss on capital lease termination	11
Loss on foreign currency transactions	3	19
(Increase) decrease in operating assets:
Accounts receivable	(484)	(416)
Inventory	(1,082)	(195)
Prepaid expenses and other current assets	(191)	30
Other asset		(10)
Increase (decrease) in operating liabilities:
Accounts payable	(130)	268
Accrued expenses	35
Deferred revenue		(70)
Net cash used in operating activities	(3,662)	(77)
Investing activities
Biocon Acquisition, net of cash acquired	(991)
Net cash used in investing activities	(991)
Financing activities
Proceeds from issuance of common stock, net of equity issuance costs of $19 and $152, respectively	3,778	1,179
Net proceeds from secured revolving credit facility	280	711
Proceeds from sale of subsidiary preferred shares to noncontrolling interest	3,000
Payments on secured note payable	(149)
Proceeds from issuance of secured note	1,187
Repayment of unsecured long term note payable	(1,187)
Proceeds from exercise of warrants	138	100
Net cash provided by financing activities	7,047	1,990
Effect of exchange rates on cash	(7)	6
Net increase in cash	2,387	1,919
Cash, beginning of year	2,194	275
Cash, end of year	4,581	2,194
Supplemental disclosure of cash flow information
Cash paid for interest expense	150	148
Cash paid for income taxes	4	7
Supplemental disclosure of noncash investing and financing activities
Fair value of contingent consideration related to the Biocon Acquisition	499
Reclassification of capital lease to equipment	39
Purchase of equipment in accrued expenses		10
Restricted stock issued to settle liability		$ 30