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Accounting Policies, by Policy (Policies) | 9 Months Ended
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Sep. 30, 2012
Use of Estimates, Policy [Policy Text Block] | Use of Estimates The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Estimates include, but are not limited to, the establishment of reserves for accounts receivable, sales returns, inventory obsolescence and warranty claims; the useful lives for property, equipment, and intangible assets; revenues recognized on a percentage-of-completion basis; and stock-based compensation. In addition, estimates and assumptions associated with the determination of the fair value of financial instruments and evaluation of goodwill and long-lived assets for impairment requires considerable judgment. Actual results could differ from those estimates and such differences could be material.
Reclassification, Policy [Policy Text Block] | Reclassifications Certain prior year amounts have been reclassified within the Condensed Consolidated Financial Statements (“financial statements”), and related notes thereto, to be consistent with the current year presentation.
Basis of Accounting, Policy [Policy Text Block] | Basis of Presentation The financial statements include the accounts of the Company and its subsidiaries, Stones River Companies, LLC (“SRC”) in Nashville, Tennessee, and Crescent Lighting Limited (“CLL”) located in the United Kingdom. All significant inter-company balances and transactions have been eliminated.
Interim Financial Statements Policy | Interim Financial Statements (unaudited) Although unaudited, the interim financial statements in this report reflect all adjustments, consisting only of all normal recurring adjustments, which are, in the opinion of management, necessary for a fair statement of financial position, results of operations, and cash flows for the interim periods covered and of the financial condition of the Company at the interim balance sheet date. The results of operations for the interim periods presented are not necessarily indicative of the results expected for the entire year. The Company’s independent public accounting firm has issued an opinion in connection with its 2011 Annual Report on Form 10-K raising substantial doubt as to its ability to continue as a going concern. The interim financial statements have been prepared assuming the Company will continue to operate as a going concern, which contemplates the realization of assets and the settlement of liabilities in the normal course of business. The interim financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classification of liabilities that may result from uncertainty related to our ability to continue as a going concern.
Balance Sheet Policy | Year-end Balance Sheet The year-end balance sheet information was derived from audited financial statements, but does not include all disclosures required by generally accepted accounting principles. These financial statements should be read in conjunction with the Company’s audited financial statements and notes thereto for the year ended December 31, 2011, which are contained in the Company’s 2011 Annual Report on Form 10-K and amendments thereof (“Form 10-K”).
New Accounting Pronouncements, Policy [Policy Text Block] | Recent Accounting Pronouncements In May 2011, the Financial Accounting Standards Board (“FASB”) issued ASU 2011-04, Fair Value Measurement, amending ASC Topic 820, which eliminates terminology differences between U.S. generally accepted accounting principles (“GAAP”) and International Financial Reporting Standards (“IFRS”) on the measurement of fair value and related fair value disclosures. While largely consistent with existing fair value measurement principles and disclosures, the changes were made as part of the continuing efforts to converge GAAP and IFRS. The adoption of this guidance was effective for interim and annual periods beginning after December 15, 2011, and its adoption did not have a material impact on the financial statements of the Company. In June 2011, the FASB issued ASU 2011-05, Comprehensive Income, amending ASC Topic 220. Under ASU 2011-05, an entity has the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The guidance was issued to improve the comparability, consistency and transparency of financial reporting and to increase the prominence of items reported in other comprehensive income. The guidance is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011. Its adoption did not have a material impact on the Company’s financial statements. In July 2012, the FASB issued ASU 2012-02, Intangibles — Goodwill and Other, amending ASC Topic 350. Under the revised guidance, entities testing indefinite-lived intangible assets for impairment have the option of performing a qualitative assessment before calculating fair value. If entities determine, on the basis of qualitative factors, that it is more likely than not that the fair value of the indefinite-lived intangible is less than the carrying amount, the fair value calculation would be required. The ASU also requires that the same qualitative factors be considered when determining whether an interim impairment evaluation is necessary. The guidance is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012, with early adoption permitted. The adoption of this guidance is not expected to have a material effect on our financial statements.
Receivables, Policy [Policy Text Block] | Retainage Receivable The Company’s solutions-based sales are normally subject to a holdback of a percentage of the sale as retainage. This holdback is recorded on the Company’s Condensed Consolidated Balance Sheets as “Retainage receivable”. Retainage is a portion of the total bid price of a project that is held back by the customer until the project is complete and functioning satisfactorily according to the contract terms. Retainage percentages typically range from 5% to 10% and are collected anywhere from three to eighteen months from the inception of the project. At September 30, 2012 and December 31, 2011, the Company had a Retainage receivable from its customers totaling $91 thousand and $474 thousand, respectively.
Repurchase Agreements, Collateral, Policy [Policy Text Block] | Collateralized Assets The Company maintains $1.0 million of cash collateral related to its surety bonding program associated with SRC. This cash is pledged to the surety carrier until such time as the Company is able to provide sufficient alternative means of collateralization satisfactory to the surety carrier.
Earnings Per Share, Policy [Policy Text Block] | Earnings (Loss) per Share Basic loss per share is computed by dividing the net loss available to common shareholders by the weighted average number of common shares outstanding for the period. Diluted loss per share is computed giving effect to all dilutive potential common shares that were outstanding during the period. Dilutive potential common shares consist of incremental shares upon exercise of stock options and warrants, unless the effect would be anti-dilutive. A reconciliation of basic and diluted loss per share is provided as follows (in thousands, except per share amounts):
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Basic and diluted loss per share: |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (928 | ) |  | $ | (1,459 | ) |  | $ | (3,695 | ) |  | $ | (5,445 | )
Basic and diluted loss per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares outstanding |  |  | 44,542 |  |  |  | 24,845 |  |  |  | 40,241 |  |  |  | 24,610 |
Basic and diluted net loss per share |  | $ | (0.02 | ) |  | $ | (0.06 | ) |  | $ | (0.09 | ) |  | $ | (0.22 | )
Options and warrants to purchase approximately 15,283,000 and 5,804,000 shares of common stock, were outstanding at September 30, 2012 and 2011, respectively, but were not included in the calculation of diluted net loss per share because their inclusion would have been anti-dilutive.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] | Stock-Based Compensation The Company’s stock-based compensation plan is described in detail in its 2011 Form 10-K for the year ended December 31, 2011. The following table summarizes the Company’s stock-based compensation (in thousands):
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Stock option expense |  | $ | 42 |  |  | $ | 75 |  |  | $ | 146 |  |  | $ | 171 |
Executive & Director stock-based compensation |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 107 |
Employee incentive stock-based compensation |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 106 |
Total stock-based compensation |  | $ | 42 |  |  | $ | 75 |  |  | $ | 146 |  |  | $ | 384 |
Total unearned compensation of $241 thousand related to stock options remains at September 30, 2012 compared to $452 thousand at September 30, 2011. These costs will be charged to expense and amortized on a straight line basis in future periods through the third quarter of 2016. The weighted average period over which this unearned compensation is expected to be recognized is approximately 1.1 years. The fair value of each stock option is estimated on the date of grant using the Black-Scholes option pricing model. Estimates utilized in the calculation include the expected life of the option, risk-free interest rate, and expected volatility, and are further comparatively detailed as follows:
|  | Nine months ended September 30, |
|  | 2012 |  |  | 2011 |
Fair value of options issued |  | $ | 0.15 |  |  | $ | 0.45 |
Exercise price |  | $ | 0.27 |  |  | $ | 0.83 |
Expected life of option (years) |  |  | 5.6 |  |  |  | 6.1 |
Risk-free interest rate |  |  | 0.82 | % |  |  | 2.14 | %
Expected volatility |  |  | 59.00 | % |  |  | 56.39 | %
Dividend yield |  |  | 0 | % |  |  | 0 | %
Option activity under the Company’s stock plans during the nine months ended September 30, 2012 was as follows:
|  | Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractural Term (in Years) |
Outstanding as of December 31, 2011 |  |  | 2,318,498 |  |  | $ | 2.28 |  |  |  |
Granted |  |  | 120,000 |  |  | $ | 0.27 |  |  |  |
Exercised |  |  | - |  |  | $ | - |  |  |  |
Cancelled/forfeited |  |  | (212,248 | ) |  | $ | 2.52 |  |  |  |
Outstanding as of September 30, 2012 |  |  | 2,226,250 |  |  | $ | 2.17 |  |  |  | 7.0 |
Exercisable as of September 30, 2012 |  |  | 1,394,611 |  |  | $ | 3.02 |  |  |  | 6.1 |
At the 2012 Annual Meeting of Shareholders held on July 25, 2012, the shareholders approved an increase in the total number of shares of common stock that may be awarded under the 2008 Incentive Stock Plan from 3,000,000 shares to 5,000,000 shares. Additionally, the shareholders approved an increase in the total number of shares of common stock that may be issued under the 1994 Employee Stock Purchase Plan from 400,000 to 600,000.
Standard Product Warranty, Policy [Policy Text Block] | Product Warranties The Company warrants finished goods against defects in material and workmanship under normal use and service for periods generally between one and five years for products and labor. Settlement costs consist of actual amounts expensed for warranty services which are largely a result of third-party service calls and the costs of replacement products. A liability for the estimated future costs under product warranties is maintained for products outstanding under warranty and is included in “Accrued liabilities” in the Condensed Consolidated Balance Sheets.

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- Definition Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 6, 8-16, 60 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2144384 + Details
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- Definition Disclosure of accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 01-6 -Paragraph 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3-5 -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 20 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 92-5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2196816 + Details
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- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2228939 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 06-11 -Paragraph 7 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367646&loc=d3e18780-107790 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(f) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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