Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
OPERATIONS:
Net income (loss)	$ (883)	$ 243
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation and amortization	183	219
Stock-based compensation expense	33	41
Non-cash interest income, net		(1)
Investment income, net	(125)
Equity in income of affiliate company	(2)
Changes in operating assets and liabilities
Accounts receivable	(47)	477
Inventories, net	70	(231)
Other current assets	107	(108)
Accounts payable	(116)	88
Accrued payroll	45	15
Deferred revenue, current portion	(25)	(60)
Accrued expenses	45	(124)
Accrued settlement	211
Other current liabilities	13	(2)
Other long-term liabilities	(39)	11
Net cash provided by (used for) operating activities	(530)	568
INVESTING ACTIVITIES:
Purchase of marketable securities		(67)
Proceeds from note and interest receivable		250
Purchases of property and equipment	(130)	(303)
Proceeds from sale of long-term investment	169
Net cash provided by (used for) investing activities	39	(120)
Effects of exchange rate changes on cash	(3)	14
Net increase (decrease) in cash	(494)	462
Cash at beginning of period	3,433	2,347
Cash at end of period	2,939	2,809
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for income taxes	$ 13	$ 28