Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 3,740	$ 3,691
Restricted cash	100	100
Accounts receivables, net	1,946	1,583
Inventories, net	1,127	1,360
Prepaid expenses and other current assets	189	166
Total current assets	7,102	6,900
Non-current assets:
Property and equipment, net	244	286
Other assets	50	77
Total assets	7,396	7,263
Liabilities and Shareholders’ Equity
Accounts payable	953	888
Accrued payroll and related liabilities	167	222
Deferred service revenue, short term	906	787
Other accrued liabilities	324	359
Total current liabilities	2,350	2,256
Long term liabilities:
Other long term liabilities	64	63
Deferred service revenue	85	105
Total long term liabilities	149	168
Total liabilities	2,499	2,424
Shareholders’ equity:
Preferred stock, no par value; 5,000 shares authorized; no shares issued
Common stock, no par value; 50,000 shares authorized, 2,042 shares issued and outstanding as of March 31, 2017 and December 31, 2016	19,063	19,063
Accumulated deficit	(14,166)	(14,224)
Total shareholders’ equity	4,897	4,839
Total liabilities and shareholders’ equity	$ 7,396	$ 7,263