CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 4,236	$ 3,190
Accounts receivable, net of allowance for doubtful accounts of $72 and $20, respectively	3,830	3,339
Inventories	1,289	335
Prepaid expenses and other current assets	410	255
Total current assets	9,765	7,119
Property and equipment:
Furniture and fixtures	162	164
Leasehold improvements	8	26
Equipment	1,058	998
Total Property and equipment:	1,228	1,188
Accumulated depreciation	882	702
Net Property and equipment:	346	486
Intangible assets, net	3,317	3,485
Deferred income taxes	56	38
TOTAL ASSETS	13,484	11,128
Current liabilities:
Accounts payable	878	563
Deferred revenue	716	45
Warranty	656	858
Accrued compensation	224	288
Other current liabilities	373	733
Total current liabilities	2,847	2,487
TOTAL LIABILITIES	2,847	2,487
Shareholders' equity
Preferred stock, $.01 par value; 5,000,000 shares authorized, none issued or outstanding	0	0
Common stock, $.01 par value; 20,000,000 shares authorized, 5,278,485 and 5,210,448 issued and outstanding, respectively	52	51
Additional paid-in capital	24,550	24,355
Accumulated other comprehensive loss	(372)	(310)
Accumulated deficit	(13,593)	(15,455)
Total shareholders' equity	10,637	8,641
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 13,484	$ 11,128