Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net loss	$ (9,974)	$ (3,213)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	568	556
Amortization	285	357
Stock-based compensation expense	107	299
Bad debt expense	4,086	88
Provision for obsolete inventory		134
Provision for warranty		136
Amortization of loan fees		88
Amortization of warrant cost to interest expense		56
(Gain) loss on sales of fixed assets	34	(24)
Change in deferred taxes	(5)	(1,194)
Provision for losses on contracts	85
Impairment charge		712
Operating expense (income) from solar system subject to financing obligation	(624)	(459)
Other non-cash activity	(7)
Changes in operating assets and liabilities:
Accounts receivable	16,545	2,636
Accounts receivable, related party	69	10,155
Notes receivable	(30,622)
Costs and estimated earnings in excess of billing on uncompleted contracts	12,856	(9,135)
Costs and estimated earnings in excess of billing on uncompleted contracts, related party		(321)
Construction in process	1,224	(10,459)
Inventories	193	4,200
Prepaid expenses and other assets	(119)	(3,430)
Accounts payable	(3,736)	5,943
Accounts payable, related party	(1,689)	(7,144)
Income taxes payable	93	(247)
Billings in excess of costs and estimated earnings on uncompleted contracts	(4,193)	1,509
Billings in excess of costs and estimated earnings on uncompleted contracts, related party	(49)	(2,992)
Accrued liabilities and other liabilities	1,601	698
Net cash from operating activities	(13,272)	(11,051)
Proceeds from repayment on notes receivable		2,286
Issuance of notes receivable	(1,258)	(7,431)
Proceeds from disposal or sale of fixed assets	13	409
Proceeds from sale of asset held for sale		1,500
Acquisitions of property, plant and equipment	(195)	(987)
Net cash from investing activities	(1,440)	(4,223)
Proceeds from line of credit and loans payable	2,553	17,682
Proceeds from sale leaseback		6,284
(Increase) decrease in restricted cash	(76)	339
Principal payments on loans payable and capital lease obligations	(5,793)	(9,621)
Net cash from financing activities	(3,316)	14,684
Effect of exchange rate changes on cash	377	(543)
Decrease in cash and cash equivalents	(17,651)	(1,133)
Cash and cash equivalents at beginning of period	17,823	24,523
Cash and cash equivalents at end of period	172	23,390
Cash paid for income taxes		2,400
Debt forgiveness from related party	2,602
Acquisition of an entity under common control financed with stock		6,282
Assignment of loan associated with asset held for sale		4,153
Cash paid for interest	$ 199	$ 756