Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Current Assets:
Cash	$ 3,087	$ 1,457
Trade accounts receivable, net of allowance for doubtful accounts of $52 and $35, respectively	2,480	1,315
Prepaid expenses and other current assets	171	111
Total current assets	5,738	2,883
Assets for lease, net	1,045	1,147
Property and equipment, net	245	193
Long-term deposits	15	15
Total assets	7,043	4,238
Current liabilities:
Accounts payable	251	488
Accrued expenses	2,259	2,670
Deferred revenue	371	531
Accrued interest		168
Accrued interest - related party		28
Loans payable net of debt discount of $0 and $9, respectively		1,018
Related party loans payable net of debt discount of $0 and $13, respectively	1,838	237
Total current liabilities	4,719	5,140
Long-term liabilities:
Deferred rent	12	13
Loans payable, less current portion		26
Related party loans payable, less current portion		1,642
Total long-term liabilities	12	1,681
Stockholders' equity (deficit):
Common stock, $0.001 par value; 50,000,000 shares authorized; 6,198,294 and 5,902,244 shares issued, and 6,173,294 and 5,877,244 outstanding (treasury shares of 25,000 and 25,000), respectively	6	6
Additional paid-in capital	25,112	23,843
Accumulated deficit	(22,806)	(26,432)
Total stockholders' equity (deficit)	2,312	(2,583)
Total liabilities and stockholders' equity (deficit)	$ 7,043	$ 4,238