Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Current assets:    
Cash $ 2,194 $ 275
Accounts receivable, net 836 388
Investment in lease, net-current portion 20 27
Inventory, net 674 479
Prepaid expenses and other current assets 85 95
Total current assets 3,809 1,264
Property and equipment, net 52 70
Investment in lease, net-less current portion 39 61
License and supply agreement, net 1,072 1,262
Other asset 11 21
Total assets 4,983 2,678
Current liabilities:    
Secured revolving credit facility 711
Accounts payable 872 585
Accrued expenses 218 240
Deferred revenue, current portion 70 70
Total current liabilities 1,871 895
Unsecured long-term note payable, net of debt issuance costs and debt discount of $233 and $349, respectively 954 838
Long-term portion of deferred revenue 208 278
Total liabilities 3,033 2,011
Commitments and Contingencies (Note 13)
Stockholders' equity:    
Preferred stock, $.001 par value; 5,000,000 shares authorized at December 31, 2017 and 2016; no shares issued and outstanding at December 31, 2017 and 2016.
Common stock, $.001 par value; 90,000,000 shares authorized at December 31, 2017 and 2016; 55,293,267 and 49,782,797 shares issued and outstanding at December 31, 2017 and December 31, 2016, respectively. 55 50
Additional paid-in capital 122,924 120,835
Accumulated other comprehensive income 77 67
Accumulated deficit (121,106) (120,285)
Total stockholders' equity 1,950 667
Total liabilities and stockholders' equity $ 4,983 $ 2,678