Note 8 - Debt (Detail) - Borrowings (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012		Dec. 31, 2011
Long-term Debt	$ 2,597
Discounts on long-term borrowings	(48)		(172)
Subtotal	2,549		1,810
Less: Current maturies of long-term debt	(756)		(855)
Long-term debt	1,793		955
Unsecured Convetible Notes [Member]
Long-term Debt	1,500	[1]		[1]
Convertible Promissory Note - TLC Investments LLC [Member]
Long-term Debt	500	[2]	500	[2]
Cognovit Note - Keystone Ruby, LLC [Member]
Long-term Debt	277	[3]	325	[3]
Letter of Credit Agreement - Mark Plush [Member]
Long-term Debt	250	[4]	250	[4]
Unsecured Promissory Note - Quercus Trust [Member]
Long-term Debt	70	[5]	70	[5]
Letter of Credit Agreement - Quercus Trust [Member]
Long-term Debt		[6]	300	[6]
Secured Subordinated Promissory Note - EF Energy Partners LLC [Member]
Long-term Debt		[7]	287	[7]
Letter of Credit Agreement - John Davenport [Member]
Long-term Debt		[8]	$ 250	[8]

[1] Notes mature on December 31, 2015, bear interest at 5%, and are convertible into common stock of the Company at $0.23 per share.

[2] Note matures on June 30, 2013, bears interest at the Wall Street Journal Prime Rate plus two percent (2%), and is convertible into 500,000 shares of the Company's common stock. Additionally, as a provision to this note, if the reported closing price of a share of common stock of the Company is not equal to or greater than $2.00 for at least twenty (20) trading days between June 30, 2010 and June 30, 2013, the Company shall pay TLC an additional fee of $500 thousand on the maturity date. The Company accrued for this contingent liability at its fair value at the time of inception of the note. The Convertible Note is secured by a first-lien-position security interest in the assets of SRC. See Note 9, Commitments and Contingencies.

[3] Note matures on April 1, 2017 and bears interest at 10%. Per the terms of the note, if the Company does not renew its lease by December 31, 2013, the note becomes payable immediately.

[4] LOC matures on August 11, 2013, and bears interest at 12.5%. The LOC is collateralized by a cash deposit with an insurance company issuing the Company's contract performance bonds and by 32% of the unpledged stock of Crescent Lighting, Ltd. ("CLL"), a subsidiary of the Company. As an incentive to enter into the LOC, the Company issued five-year, detached warrants to purchase 125,000 shares of common stock at an exercise price of $0.01 per share. See Note 14, Related Party Transactions.

[5] Note matures on June 1, 2109 and bears interest at 1%.

[6] As of December 31, 2011, the Company was in default on this LOC as it matured on December 31, 2011. The LOC was paid in full in March 2012. The interest rate was 12.5%.

[7] Note was to mature on March 30, 2013, but was paid in full in March 2012. The interest rate was 12.5%.

[8] On December 21, 2011, the LOC with John Davenport was amended to extend the due date from December 31, 2011, to a month by month basis as long as interest continued to be earned at 12.5%. The LOC was subsequently paid in March 2012. As an incentive to enter into the LOC, the Company issued five-year, detached warrants to purchase 125,000 shares of common stock at an exercise price of $0.01 per share. See Note 14, Related Party Transactions.