Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 OmniMetrix acquistion [Member]
Cash flows provided by (used in) operating activities:
Net income (loss) before non-controlling interests	$ (11,777)	$ 35,476
Less net (income) loss from discontinued operations		28,735
Net income (loss) from continuing operations	(11,777)	6,741
Adjustments to reconcile net income (loss) to net cash used in operating activities (see Schedule A):	(4,937)	(13,355)
Net cash used in operating activities - continuing operations	(16,714)	(6,614)
Cash flows provided by (used in) investing activities:
Acquisitions of property and equipment	(476)	(351)
Acquisition of license	(150)	0
Restricted deposits	(46)	(656)
Release of restricted deposits	(386)	(1,096)
Maturity of short-term deposits	16,015	0
Short-term deposit	(8,015)	0
Amounts funded for severance assets	(235)	(225)
Proceeds From (Payments For) Advances From Coalogix Prior To Sale	0	(278)
Proceeds from the sale of CoaLogix net of CoaLogix cash	0	61,632
Proceeds From (Payments For) Escrow Deposit From Coalogix Sale	0	(6,308)
Release of escrow deposits	5,961	0
Proceeds from the sale of HangXing		(492)
Net cash provided by (used in) investing activities - continuing operations	5,605	55,402
Cash flows provided by (used in) financing activities:
Proceeds from employee stock option and warrant exercises	1,330	194
Short-term bank credit, net	(131)	(348)
Proceeds from borrowings of long-term debt	16	68
Repayments of long-term debt	(135)	(238)
Dividends paid	(2,682)
Other		29
Net cash provided by (used in) financing activities - continuing operations	(1,602)	(295)
Discontinued operations:
Operating cash flows		(2,020)
Investing cash flows		(187)
Financing cash flows		1,683
Net cash provided by (used in) discontinued operations	0	(524)
Effect of exchange rate changes on cash and cash equivalents	148	(143)
Net increase (decrease) in cash and cash equivalents	(12,563)	47,826
Cash and cash equivalents held by continuing operations at the end of the period	21,717
A. Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	1,035	625
Increase in accrued severance	371	293
Stock-based compensation	590	315
Deferred taxes	(1,766)	(10,697)
Gain on sale of HangXing	0	(492)
Other	(29)	(52)
Change in operating assets and liabilities:
Decrease (increase) in accounts receivable, unbilled work-in process, other current assets and other assets	(2,315)	874
Increase in inventory	(799)	(763)
Increase (decrease) in accounts payable, accrued payroll, payroll taxes and social benefits, other current liabilities and other liabilities	(2,024)	(3,458)
Adjustments to reconcile net income (loss) to net cash used in operating activities (see Schedule A):	(4,937)	(13,355)
B. Non-cash items:
Adjustment of Additional Paid In Capital and Noncontrolling Interests from Investment in Noncontrolling Interests From Additional Investment Option by Acorn	975	600
Stock Issued During Period, Value, Dividend Reinvestment Plan	69
Value of shares issued as compensation		101
C. Assets/liabilities acquired in the acquisition of OmniMetrix
Accounts Receivable			328
Business Acquisition, Purchase Price Allocation, Current Assets, Inventory			234
Other current assets			10
Property and equipment			26
Intangible assets			5,581
Goodwill			1,930
Current liabilities			(274)
Payments to Acquire Businesses, Net of Cash Acquired	$ 7,835	$ 0	$ 7,835