Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
OPERATIONS:
Net income (loss)	$ (521,000)	$ 283,000
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Depreciation and amortization	233,000	180,000
Stock-based compensation expense	38,000	17,000
Non-cash interest income, net	(6,000)	(8,000)
Equity in (income) loss of affiliate company	10,000	(20,000)
Changes in operating assets and liabilities
Accounts receivable	(379,000)	(714,000)
Inventories	(97,000)	(95,000)
Other current assets	(29,000)	(113,000)
Accounts payable	(48,000)	167,000
Deferred revenue	184,000	227,000
Accrued payroll	41,000	(90,000)
Accrued expenses	187,000	142,000
Other current liabilities	(92,000)	(29,000)
Other long-term liabilities	12,000	68,000
Net cash provided by (used for) operating activities	(466,000)	15,000
INVESTING ACTIVITIES:
Proceeds from note and interest receivable	250,000	600,000
Purchases of property and equipment	(112,000)	(361,000)
Long-term investment	(300,000)
Net cash provided by (used for) investing activities	(162,000)	239,000
Effects of exchange rate changes on cash	(19,000)	(6,000)
Net increase (decrease) in cash	(647,000)	248,000
Cash at beginning of period	3,152,000	2,942,000
Cash at end of period	2,505,000	3,190,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for income taxes	$ 14,000	$ 19,000