Condensed Consolidated Statements of Cash Flows (unaudited) (USD $) In Thousands	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Cash flows provided by (used in) operating activities:
Net income (loss) before non-controlling interests	$ 35,476	$ (11,530)
Less net (income) loss from discontinued operations	(28,735)	8,714
Net income (loss) from continuing operations	6,741	(2,816)
Adjustments to reconcile net income (loss) to net cash used in operating activities (see Schedule A):	(13,355)	(2,105)
Net cash used in operating activities - continuing operations	(6,614)	(4,921)
Cash flows provided by (used in) investing activities:
Investment in EnerTech	0	(900)
Restricted deposits	(656)	(1,225)
Release of restricted deposits	1,096	672
Loan to GridSense prior to acquisition	0	(200)
Advances from CoaLogix prior to sale	(278)	0
Escrow deposits from CoaLogix sale	(6,308)	0
Amounts funded for severance assets	(225)	(190)
Acquisitions of property and equipment	(351)	(172)
Net cash provided by (used in) investing activities - continuing operations	55,402	(3,360)
Cash flows provided by (used in) financing activities:
Proceeds from capital raise, net of transaction costs	0	11,467
Issuance of shares to non-controlling interests in consolidated subsidiary	0	3,010
Exercise of options and warrants	194	220
Short-term debt borrowings (repayments), net	(348)	797
Proceeds from borrowings of long-term debt	68	0
Repayments of long-term debt	(238)	(159)
Other	29	50
Net cash provided by (used in) financing activities - continuing operations	(295)	15,385
Discontinued operations:
Operating cash flows	(2,020)	(6,996)
Investing cash flows	(187)	(6,790)
Financing cash flows	1,683	364
Net cash used in discontinued operations	(524)	(13,422)
Effect of exchange rate changes on cash and cash equivalents	(143)	158
Effect of exchange rate changes on cash and cash equivalents of discontinued operations	0	(82)
Net increase (decrease) in cash and cash equivalents	47,826	(6,242)
Cash and cash equivalents at the beginning of the period of discontinued operations	807	2,869
Cash and cash equivalents at the beginning of the period	6,549	8,339
Cash and cash equivalents at the end of the period	55,182	4,966
Cash and cash equivalents of discontinued operations	0	(2,392)
Cash and cash equivalents held by continuing operations at the end of the period	55,182	2,574
A. Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	625	440
Exchange rate adjustment on amounts funded for severance assets net of exchange adjustment on accrued severance	(47)	28
Increase in liability for accrued severance	293	316
Amortization of stock-based deferred compensation	315	461
Deferred taxes	(10,697)	0
Gain on investment in GridSense	0	(1,327)
Gain on sale of HangXing	(492)	0
Other	(5)	19
Change in operating assets and liabilities:
Decrease (increase) in accounts receivable, unbilled work-in process, other current assets and other assets	874	(1,990)
Increase in inventory	(763)	(473)
Increase (decrease) in accounts payable, accrued payroll, payroll taxes and social benefits, other current liabilities and other liabilities	(3,458)	421
Adjustments to reconcile net income (loss) to net cash used in operating activities (see Schedule A):	(13,355)	(2,105)
B. Non-cash items:
Value of shares issued as compensation	101
Adjustment of additional paid-in-capital and non-controlling from exercise of option by Acorn in USSI	600
CoaLogix [Member]
Cash flows provided by (used in) investing activities:
Proceeds from the sale of equity method investees	61,632	0
HangXing [Member]
Cash flows provided by (used in) investing activities:
Proceeds from the sale of equity method investees	492	0
USSI [Member]
Assets/liabilities acquired in the acquisition:
Other current assets		(55)
Property and equipment		(56)
Intangibles		(2,565)
Goodwill		(1,402)
Current liabilities		285
Prior year investment in USSI		200
Non-controlling interests		3,600
Acquisition of businesses	0	7
Gridsense [Member]
B. Non-cash items:
Value of Acorn shares issued in the acquisition		1,867
Assets/liabilities acquired in the acquisition:
Inventory		(833)
Other current assets		(482)
Property and equipment		(71)
Other assets		(370)
Intangibles		(2,314)
Goodwill		(3,655)
Current liabilities		2,003
Short term and long-term debt		113
Gain on step-up of investment		1,327
Consideration paid		4,406
Less cash included in consideration paid		(1,476)
Acquisition of businesses	0	(1,352)
OMI [Member]
Assets/liabilities acquired in the acquisition:
Other current assets		(39)
Property and equipment		(41)
Intangibles		(322)
Current liabilities		402
Acquisition of businesses	$ 0	$ 0

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The effect of exchange rate changes on cash balances held in foreign currencies.

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The effect of exchange rate changes on cash balances in discontinuing operations held in foreign currencies.

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Other income (expense) included in net income that results in no cash inflows or outflows in the period. Includes noncash adjustments to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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The cash outflow to acquire investments (not to include restricted cash) that are pledged or subject to withdrawal restrictions.

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The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or sale of an entity that is related to it but not strictly controlled.

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The cash inflow from the additional capital contribution to the entity.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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The cash inflow contributed by noncontrolled interest that purchase additional shares or otherwise increase their ownership stake in a subsidiary of the entity.

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The cash inflow or outflow associated with long-term loans for related parties where one party can exercise control or significant influence over another party, including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Proceeds from (Payments for) Advances to Affiliates.

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The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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The cash inflow associated with the sale of investments that are pledged or subject to withdrawal restrictions during the period.

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The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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