Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net loss	$ (832)	$ (3,141)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation	263	285
Amortization	143	143
Stock-based compensation expense	215	71
Gain on sale of fixed assets		(13)
Change in deferred taxes		(5)
Operating income from solar system subject to financing obligation	(89)	(152)
Other non-cash activity		(3)
Changes in operating assets and liabilities:
Accounts receivable	524	(1,352)
Accounts receivable, related party	62	224
Costs and estimated earnings in excess of billing on uncompleted contracts		(5,987)
Construction in process		1,376
Inventories		127
Prepaid expenses and other assets	(373)	(64)
Accounts payable	(426)	(2,434)
Accounts payable, related party	(3)	(83)
Income taxes payable		(3)
Billings in excess of costs and estimated earnings on uncompleted contracts	(170)	(2,769)
Billings in excess of costs and estimated earnings on uncompleted contracts, related party		(49)
Accrued liabilities and other liabilities	(8)	(72)
Net cash from operating activities	(694)	(13,901)
Cash flows from investing activities:
Collection (issuance) of notes receivable	79	(825)
Proceeds from disposal or sale of fixed assets		13
Acquisitions of property, plant and equipment		(195)
Net cash from investing activities	79	(1,007)
Cash flows from financing activities:
Proceeds from line of credit and loans payable		2,078
Increase in restricted cash		(94)
Principal payments on loans payable and capital lease obligations		(3,177)
Net cash from financing activities		(1,193)
Effect of exchange rate changes on cash	(144)	53
Decrease in cash and cash equivalents	(759)	(16,048)
Cash and cash equivalents at beginning of period	1,031	17,823
Cash and cash equivalents at end of period	272	1,775
Supplemental cash flow information:
Cash paid for interest	$ 41	$ 199