Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating activities:
Net loss	$ (1,466)	$ (1,671)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation of property and equipment	14	6
Amortization of other assets	105	105
Non-cash stock-based compensation, including stock options and restricted stock	395	233
Non-employee stock-based compensation		41
Non-cash interest expense	54	6
Inventory reserve		27
Allowance for doubtful accounts reserve	2	15
Loss on foreign currency transactions	13	3
(Increase) decrease in operating assets:
Accounts receivable	(176)	36
Inventory	(124)	169
Prepaid expenses and other current assets	45	17
Increase (decrease) in operating liabilities:
Accounts payable	(85)	178
Accrued expenses	100	75
Deferred revenue	(35)	(34)
Net cash used in operating activities	(1,158)	(794)
Investing activities:
Purchase of property, plant and equipment		(40)
Net cash used in investing activities		(40)
Financing activities:
Proceeds from issuance of common stock, net of equity issuance costs	1,179
Proceeds from issuance of unsecured note		1,187
Proceeds from exercise of warrants		1
Net cash provided by financing activities	1,179	1,188
Effect of exchange rates on cash	5
Net increase (decrease) in cash	26	354
Cash, beginning of period	275	1,248
Cash, end of period	301	1,602
Supplemental disclosure of cash flow information
Cash paid for interest	77	26
Cash paid for income taxes	4	2
Supplemental disclosure of noncash investing and financing activities
Fair value of warrants issued with unsecured note payable		393
Investment in lease receivable, net		92
Cost of equipment in sales-type lease		92
Restricted stock issued to settle liability		16
Deposit on inventory reclassified from prepaid expenses and other current assets to inventory		18
Deposit on property and equipment reclassified from prepaid expenses and other current assets to property and equipment		124
Purchase of property and equipment in accounts payable		$ 5