Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 4,781	$ 4,698
Restricted cash	100	100
Accounts receivable, net	1,809	1,802
Inventories, net	2,897	1,564
Prepaid expenses and other current assets	180	163
Total current assets	9,767	8,327
Property and equipment, net	112	172
Other assets	119	68
Total assets	9,998	8,567
LIABILITIES AND SHAREHOLDERS’ EQUITY
Accounts payable	1,023	1,065
Accrued payroll and related liabilities	185	173
Deferred service revenue	736	834
Other accrued liabilities	559	454
Total current liabilities	2,503	2,526
Other long-term liabilities	40	52
Deferred service revenue, long term	127	93
Total long-term liabilities	167	145
Total liabilities	2,670	2,671
Commitments and contingencies (Note 10)
Shareholders’ equity:
Preferred stock, no par value; 5,000,000 shares authorized; no shares issued	0	0
Common stock, no par value; 50,000,000 shares authorized; 2,030,017 and 2,042,019 shares issued and outstanding as of December 31, 2018 and 2017, respectively	19,426	19,480
Accumulated deficit	(12,098)	(13,584)
Total shareholders’ equity	7,328	5,896
Total liabilities and shareholders’ equity	$ 9,998	$ 8,567