Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
OPERATING ACTIVITIES:
Net income (loss)	$ 469	$ (217)
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation and amortization	435	523
Stock-based compensation expense	82	79
Non-cash interest income, net	(1)	(10)
Non-cash investment write-down	(1)	17
Non-cash foreign currency allocation to noncontrolling interest	21
Non-cash investment	(10)
Equity in (income) loss of affiliate company	(21)	12
Changes in operating assets and liabilities:
Accounts receivable, net	611	(534)
Inventories, net	(77)	(58)
Other current assets	13	(56)
Other long-term assets	(103)
Accounts payable	178	(169)
Accrued payroll	161	59
Deferred revenue	(250)	11
Accrued expenses	(88)	42
Other current liabilities	(112)	10
Other long-term liabilities	227	6
Net cash provided by (used for) operating activities	1,535	(285)
INVESTING ACTIVITIES:
Purchase of marketable securities	(67)	(42)
Proceeds from note and interest receivable	250	250
Proceeds from sale of equipment	4
Purchases of property and equipment	(559)	(399)
Patent addition	(6)	(20)
Long-term investment	(60)	(300)
Net cash used by investing activities	(438)	(511)
Effects of exchange rate changes on cash	(11)	(9)
Net increase (decrease) in cash	1,086	(805)
Cash at beginning of year	2,347	3,152
Cash at end of year	3,433	2,347
Non-Cash Transactions:
Transfer of property and equipment to inventory	147	0
Sale of vehicle for note receivable, net	$ 21