Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
OPERATING ACTIVITIES:
Net income (loss)	$ (217)	$ 657
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation and amortization	523	435
Stock-based compensation expense	79	43
Non-cash interest income, net	(10)	(16)
Non-cash investment write-down	17
Equity in (income) loss of affiliate company	12	(2)
Changes in operating assets and liabilities:
Accounts receivable, net	(534)	(277)
Inventories, net	(58)	9
Other current assets	(56)	120
Accounts payable	(169)	141
Accrued payroll	59	(90)
Deferred revenue	11	(717)
Accrued expenses	42	29
Other current liabilities	10	62
Other long term liabilities	6	3
Net cash provided by (used for) operating activities	(285)	397
INVESTING ACTIVITIES:
Purchase of marketable securities	(42)	(222)
Proceeds from note and interest receivable	250	600
Purchases of property and equipment	(399)	(464)
Patent addition	(20)
Long-term investment	(300)
Net cash used by investing activities	(511)	(86)
Effects of exchange rate changes on cash	(9)	(101)
Net increase (decrease) in cash	(805)	210
Cash at beginning of year	3,152	2,942
Cash at end of year	2,347	3,152
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid for income taxes	$ 26	$ 70