Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets
Cash	$ 2,692	$ 3,918
Accounts receivable, net of allowance	90	48
Inventory	473	242
Prepaid expenses and other assets	323	469
Total current assets	3,578	4,677
Operating lease right of use asset	157
Furniture and fixtures, net of depreciation	62	72
Intangible assets, net of amortization	339	392
Total noncurrent assets	558	464
Total assets	4,136	5,141
Current liabilities
Accounts payable	876	270
Due to related party	4	28
Accrued expenses	1,135	852
Current portion of operating lease liability	77
Accrued dividends	2,189	1,064
Notes Payable	5,151	0
Total current liabilities	9,432	2,214
Operating lease liability, net of current portion	88
Total liabilities	9,520	2,214
Commitments and contingencies (Note 9)
Stockholders’ equity (deficit)
Common stock, $0.006 par value; 180,000,000 shares authorized, 10,869,530 and 10,761,684 shares issued and outstanding as of September 30, 2019 and December 31, 2018, respectively	65	65
Additional paid-in capital	29,418	28,710
Accumulated deficit	(34,867)	(25,848)
Total stockholders’ equity (deficit)	(5,384)	2,927
Total liabilities and stockholders’ equity (deficit)	4,136	5,141
Series C convertible preferred stock
Stockholders’ equity (deficit)
Preferred stock, $0.01 par value; 100,000 shares authorized	0	0
Series D convertible preferred stock
Stockholders’ equity (deficit)
Preferred stock, $0.01 par value; 100,000 shares authorized	0	0
Series E convertible preferred stock
Stockholders’ equity (deficit)
Preferred stock, $0.01 par value; 100,000 shares authorized	0	0
Series F Convertible preferred stock
Stockholders’ equity (deficit)
Preferred stock, $0.01 par value; 100,000 shares authorized	$ 0	$ 0