Revolution Lighting (RVLT) 10-K 10 Mar 16 2015 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2015	Mar. 01, 2016	Jun. 30, 2015
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,015
Document Fiscal Period Focus	FY
Trading Symbol	RVLT
Entity Registrant Name	Revolution Lighting Technologies, Inc.
Entity Central Index Key	917,523
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		159,985,587
Entity Public Float			$ 64,455,236

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 219	$ 6,033
Trade accounts receivable, less allowance for doubtful accounts of $1,005 and $108	41,132	23,779
Unbilled contract receivables	4,559
Inventories, less reserves of $1,946 and $1,669	22,135	13,673
Other current assets	3,830	3,157
Total current assets	71,875	46,642
Property and equipment:
Machinery and equipment	1,083	1,004
Furniture and fixtures	726	263
Computers and software	644	598
Construction in process	43	251
Leasehold improvements	206	126
Property and equipment	2,702	2,242
Accumulated depreciation and amortization	(1,455)	(1,031)
Net property and equipment	1,247	1,211
Goodwill	64,267	42,991
Intangible assets, less accumulated amortization of $12,849 and $8,881	39,595	34,784
Other assets, net	651	914
Total assets	177,635	126,542
Current Liabilities:
Accounts payable	19,908	11,573
Accrued compensation and benefits	3,388	2,281
Notes payable	10,360	360
Accrued and other current liabilities	5,329	7,371
Purchase price obligations - current	7,039	6,269
Total current liabilities	46,024	27,854
Revolving credit facility	22,026	8,760
Related party payable	2,565	2,565
Note payable	2,426	2,816
Purchase price obligations - noncurrent	1,764	6,086
Other liabilities	727	1,145
Total liabilities	75,532	49,226
Stockholders' Equity
Common stock, $.001 par value, 200,000 shares authorized, 159,645 and 129,714 issued and outstanding at December 31, 2015 and 2014, respectively	160	130
Additional paid-in capital	176,616	149,477
Accumulated deficit	(74,673)	(72,291)
Total stockholders' equity	102,103	77,316
Total liabilities and stockholders' equity	$ 177,635	$ 126,542

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Trade accounts receivable, allowance for doubtful accounts	$ 1,005	$ 108
Inventories, reserve	1,946	1,669
Intangible assets, accumulated amortization	$ 12,849	$ 8,881
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, issued	159,645,000	129,714,000
Common stock, outstanding	159,645,000	129,714,000

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues	$ 129,656	$ 76,840	$ 26,060
Cost of sales	86,366	52,617	16,108
Gross profit	43,290	24,223	9,952
Selling, general and administrative:
Acquisition, severance and transition costs	1,950	2,488	3,541
Amortization and depreciation	4,868	5,644	3,122
Stock-based compensation	2,719	1,711	809
Other selling, general and administrative	32,179	23,204	11,193
Research and development	2,475	2,076	1,809
Total operating expenses	44,191	35,123	20,474
Operating loss	(901)	(10,900)	(10,522)
Other income (expense):
Change in fair value of embedded derivative			(6,990)
Gain on bargain purchase of business			743
Interest expense and other bank charges	(1,481)	(830)	(52)
Total other expense, net	(1,481)	(830)	(6,299)
Loss before income taxes	(2,382)	(11,730)	(16,821)
Deferred income tax benefit		6,550
Net loss	(2,382)	(5,180)	(16,821)
Accretion of preferred stock to redemption value, beneficial conversion feature and discount		(919)	(2,290)
Accrual of preferred stock dividends		(1,445)	(1,360)
Deemed distribution on exchange of preferred stock		(5,301)
Net loss attributable to common stockholders	$ (2,382)	$ (12,845)	$ (20,471)
Basic and diluted loss per common share:
Net loss per common share attributable to common stockholders - Basic and Diluted	$ (0.02)	$ (0.14)	$ (0.26)
Weighted average shares outstanding - Basic and Diluted	149,297	92,158	77,317

Consolidated Statement of Stock

Consolidated Statement of Stockholders' Equity - USD ($) $ in Thousands	Total	Series E Redeemable Convertible Preferred Stock	Series D Convertible Preferred Stock	Series E and F Preferred Stock	Series C Preferred Stock	Series G Preferred Stock	Seesmart Technologies Incorporated	Relume Technologies Inc	Tri-State LED, Inc.	Value Lighting	All Around	Energy Source	Employees	Non Employees	Preferred Stock	Preferred StockSeries D Convertible Preferred Stock	Preferred StockSeries C Preferred Stock	Common Stock	Common StockSeries D Convertible Preferred Stock	Common StockSeesmart Technologies Incorporated	Common StockRelume Technologies Inc	Common StockTri-State LED, Inc.	Common StockValue Lighting	Common StockAll Around	Common StockEnergy Source	Common StockEmployees	Additional Paid-in Capital	Additional Paid-in CapitalSeries E Redeemable Convertible Preferred Stock	Additional Paid-in CapitalSeries D Convertible Preferred Stock	Additional Paid-in CapitalSeries E and F Preferred Stock	Additional Paid-in CapitalSeries C Preferred Stock	Additional Paid-in CapitalSeries G Preferred Stock	Additional Paid-in CapitalSeesmart Technologies Incorporated	Additional Paid-in CapitalRelume Technologies Inc	Additional Paid-in CapitalTri-State LED, Inc.	Additional Paid-in CapitalValue Lighting	Additional Paid-in CapitalAll Around	Additional Paid-in CapitalEnergy Source	Additional Paid-in CapitalEmployees	Additional Paid-in CapitalNon Employees	Accumulated Deficit	Temporary Equity	Temporary EquitySeries F Redeemable Convertible Preferred Stock	Temporary EquitySeries E Redeemable Convertible Preferred Stock	Temporary EquitySeries E and F Preferred Stock	Temporary EquitySeries E Preferred Stock	Temporary EquitySeries F Preferred Stock	Temporary EquitySeries G Preferred Stock
Beginning Balance (in shares) at Dec. 31, 2012															21,000			70,213,000
Beginning Balance at Dec. 31, 2012	$ 20,696														$ 10,880			$ 70									$ 60,036														$ (50,290)
Stock-based compensation													$ 302	$ 507																									$ 302	$ 507
Stock-based compensation, (in shares)																										191,000
Accretion of preferred stock				$ (2,290)																										$ (2,290)															$ 2,290
Exercise of stock options (in shares)																		108,000
Exercise of stock options	265																										265
Accrual of dividends on convertible preferred stock	(1,360)																										(1,360)															$ 346
Issuance of common stock for acquisition (in shares)																				1,993,000	2,174,000	272,000
Issuance of common stock for acquisition							$ 1,295	$ 7,305	$ 810											$ 2	$ 2	$ 1											$ 1,293	$ 7,303	$ 809
Embedded Conversion Liability	8,626																										8,626															(1,637)
Issuance of stock, net of issuance costs, (in shares)																1,000		4,348,000
Issuance of common stock for cash, net of fees	5,069		$ 62													$ 62		$ 5									5,064																$ 4,999	$ 4,968
Issuance of restricted common stock for services (in shares)																		1,084,000
Issuance of restricted common stock for services																		$ 1									(1)
Fees associated with issuances of common stock	(119)																										(119)
Common stock to be issued	1,109																										1,109
Exchange of preferred stock for common stock (in shares)																(12,000)			1,712,000
Exchange of preferred stock for common stock																$ (1,006)			$ 1										$ 1,005
Net loss	(16,821)																																								(16,821)
Ending Balance (in shares) at Dec. 31, 2013															10,000			82,095,000
Ending Balance at Dec. 31, 2013	$ 25,456														$ 9,936			$ 82									82,549														(67,111)	10,966
Stock-based compensation													840	(40)																									840	(40)
Issuance of dividends on Series C					$ 1,000												$ 1,028														$ (28)
Issuance of common stock for services (in shares)																		849,000
Issuance of common stock for services																		$ 1									(1)
Accretion of preferred stock		$ (19)																										$ (19)																$ 19
Exercise of stock options (in shares)	0
Accrual of dividends on convertible preferred stock	$ (1,445)																										(1,445)															691
Issuance of common stock for acquisition (in shares)																				575,000		(7,000)	2,032,000
Issuance of common stock for acquisition							$ 374													$ 1			$ 2										$ 373			$ (2)
Issuance of stock, net of issuance costs, (in shares)																		8,000,000
Issuance of common stock for cash, net of fees	8,614																	$ 8									8,606																			$ (56)
Cancellation of Series F preferred stock																																															$ (5,404)
Issuance of preferred stock Series G and accretion to redemption value						$ (900)																										$ (900)																$ 18,863
Forfeiture of restricted stock , shares																		(130,000)
Forfeiture of restricted stock , value	0														$ 0			$ 0									0														0	0
Shares to be issued for acquisitions											$ 22,737																										$ 22,737
Exchange of preferred stock for common stock (in shares)															(10,000)			36,300,000
Exchange of preferred stock for common stock	25,879														$ (10,964)			$ 36									36,807															$ (25,079)
Net loss	(5,180)																																								(5,180)
Ending Balance (in shares) at Dec. 31, 2014																		129,714,000
Ending Balance at Dec. 31, 2014	$ 77,316																	$ 130									149,477														(72,291)
Stock-based compensation													$ 1,894	$ 297												$ 2													$ 1,892	$ 297
Stock-based compensation, (in shares)																										1,588,000
Exercise of stock options (in shares)	0
Shares issued for contingent consideration, value									$ 339	$ 5,500													$ 5												$ 339	5,495
Shares issued for contingent consideration, shares																						543,000	4,895,000
Issuance of common stock for acquisition (in shares)																							4,573,000	979,000	8,820,000
Issuance of common stock for acquisition											$ 477	$ 9,702											$ 5		$ 9											$ (5)	$ 477	$ 9,693
Issuance of stock, net of issuance costs, (in shares)																		8,696,000
Issuance of common stock for cash, net of fees	$ 9,507																	$ 9									9,498
Cancellation of reacquired escrowed common stock, value	(547)																										(547)
Cancellation of reacquired escrowed common stock, shares																		(163,000)
Net loss	(2,382)																																								(2,382)
Ending Balance (in shares) at Dec. 31, 2015																		159,645,000
Ending Balance at Dec. 31, 2015	$ 102,103																	$ 160									$ 176,616														$ (74,673)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash Flows from Operating Activities:
Net loss	$ (2,382)	$ (5,180)	$ (16,821)
Adjustments to reconcile net loss to net cash used in operating activities:
Deferred income tax benefit		(6,550)
Depreciation	550	495	263
Amortization of intangible and other assets	4,318	5,149	2,859
Stock-based compensation	2,719	1,711	809
Change in fair value of contingent consideration	864	1,419	88
Change in fair value of embedded derivative			6,990
Gain on bargain purchase of business			(743)
Changes in operating assets and liabilities, net of the effect of the acquisitions (Note 2):
(Increase) in trade accounts receivable, net	(15,111)	(10,291)	(1,727)
(Increase) in unbilled contract receivables, net	(2,246)
(Increase) in inventories, net	(7,234)	(60)	(697)
(Increase) in other assets	(699)	(977)	(385)
Increase / (decrease) in accounts payable and other accrued liabilities	2,532	(19)	1,218
Net cash used in operating activities	(16,689)	(14,303)	(8,146)
Cash Flows from Investing Activities:
Acquisitions of businesses, net of cash acquired	(10,499)	(11,521)	(10,437)
Purchase of property and equipment	(462)	(485)	(133)
Net cash used in investing activities	(10,961)	(12,006)	(10,570)
Cash Flows from Financing Activities:
Proceeds from issuance of common stock, net of issuance costs and other	8,960	8,614	4,950
Proceeds from issuances of preferred stock, net of issuance costs		(94)	9,964
(Repayments) proceeds from short-term borrowings and notes payable	(390)	(1,552)	860
Proceeds from revolving credit facility, net	13,266	8,760
Proceeds from loans from affiliates of controlling stockholder, net		14,857
Net proceeds from exercise of employee stock options and warrants			265
Net cash provided by financing activities	21,836	30,585	16,039
Net (decrease) increase in cash and cash equivalents	(5,814)	4,276	(2,677)
Cash and cash equivalents, beginning of period	6,033	1,757	4,434
Cash and cash equivalents, end of period	219	6,033	1,757
Supplemental Disclosure of Cash Flow Information:
Cash paid during period for interest	688	543	21
Non-cash investing and financing activities:
Issuance of promissory notes for acquisition	10,000
Contingent consideration for acquisitions	1,550	9,976	960
Deferred consideration for acquisition	350
Exchange of trade accounts payable for note		3,736
Conversion of preferred stock for common stock		36,843	1,006
Accrual of dividends on preferred stock		1,449	1,360
In-kind dividends on Series C preferred stock		1,000
Common Stock | Contingent Consideration
Non-cash investing and financing activities:
Issuance of stock	6,316
Common Stock | Value Lighting
Non-cash investing and financing activities:
Issuance of stock	$ 9,702	23,111	9,435
Series D Preferred Stock
Non-cash investing and financing activities:
Issuance of stock			$ 62
Series G Preferred Stock
Non-cash investing and financing activities:
Issuance of stock		$ 18,000

Consolidated Statements of Cas7

Consolidated Statements of Cash Flows (Parenthetical) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)
Extinguishment of notes payable	$ 12,600
Series F Preferred Stock
Issuance of stock	$ 5,400

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2015
Summary of Significant Accounting Policies	1. Summary of Significant Accounting Policies: Business The Company’s operations consist of one reportable segment for financial reporting purposes: Lighting Products and Solutions (principally LED fixtures and lamps). For each of the two years ended December 31, 2014, we reported two segments, Lighting Fixtures and Lamps, and Lighting Signage and Media. Due to changes in the management, organizational structure and internal reporting, our operations now comprise one reportable segment for financial reporting purposes, and therefore segment disclosures are no longer presented. On April 17, 2014, the Company completed the acquisition of Value Lighting Inc. and certain of its affiliates (“Value Lighting”), a supplier of lighting solutions to the multifamily residential market. Value Lighting is headquartered in Marietta, Georgia with facilities in Marietta, Georgia; Dallas, Texas; Houston, Texas and Beltsville, Maryland. On December 18, 2014, the Company completed the acquisition of All Around Inc. (“All Around”), a supplier of lighting fixtures. All Around is headquartered in Conroe, Texas. On February 5, 2015, the Company acquired the assets of DPI Management, Inc. d/b/a E Lighting. E-Lighting is in Carrolton, Texas. On August 5, 2015, the Company completed its acquisition of Energy Source, LLC (“Energy Source”), a provider of turnkey comprehensive energy savings projects (principally LED fixtures and lamps) within the commercial, industrial, hospitality, retail, education and municipal sectors. Energy Source is headquartered in Providence, Rhode Island. Liquidity While the Company generated negative cash flows from operations in the full fiscal year 2015, it did achieve positive cash flows from operations in the fourth quarter of 2015 and the Company believes it has adequate resources to meet its cash requirements in the foreseeable future. On December 1, 2014, we exchanged all outstanding series of preferred stock, including accrued but unpaid dividends thereon, to an aggregate of 36,300,171 shares of our unregistered common stock (the “Preferred Stock Exchange”). All rights relating to the preferred stock were extinguished as a result of this transaction. Accordingly, we have been relieved of the ongoing obligation to pay dividends on preferred stock. In August 2014, the Company entered into a loan and security agreement with Bank of America to borrow up to $25 million on a revolving basis, based upon specified percentages of eligible receivables and inventory (“the Revolving Credit Facility”). In April 2015, our Chairman and Chief Executive Officer guaranteed $5 million of borrowings under the Revolving Credit Facility, enabling us to borrow up to $5 million in addition to the amount that is based upon receivables and inventory. This guarantee may be terminated under certain circumstances. Bank of America agreed to amend the Revolving Credit Facility to enable the Company to borrow up to $30 million under certain conditions. As of December 31, 2015, the balance on the Revolving Credit Facility was $22.0 million, with additional borrowing capacity of $2.6 million. We are in compliance with our covenants and obligations under the revolving credit facility as of March 1, 2016. Although we realized revenues of $129.7 million during the year ended December 31, 2015 and achieved positive earnings and positive cash flow from operations during the fourth quarter, we face challenges to maintain profitability, and there can be no assurance that we will sustain positive cash flows from operations or profitability. Our ability to meet our obligations in the ordinary course of business is dependent upon our ability to maintain profitable operations, maintain our revolving credit facility, or raise additional capital. Additional capital could take the form of public or private debt, equity financing, other sources of financing to fund operations, or the support of our controlling stockholder. There can be no assurance such financing will be available on terms acceptable to us or that any financing transaction will not be dilutive to our current stockholders. In addition, to accelerate the growth of our operations in response to new market opportunities or to acquire other technologies or businesses, we may need to raise additional capital. Additional capital may come from several sources, including the issuance of additional common stock, preferred stock, debt (whether convertible or not) or other securities. Increased indebtedness could negatively affect our liquidity and operating flexibility. The issuance of any additional securities could, among other things, result in substantial dilution of the percentage ownership of our stockholders at the time of issuance, result in substantial dilution of our earnings per share, and adversely affect the prevailing market price for our common stock. In addition, we may not be able to obtain additional financing on terms favorable to us, if at all. If additional funds become necessary and are not available on terms favorable to us, or at all, we may be unable to expand our business or pursue an acquisition and our business, results of operations and financial condition may be materially adversely affected. Principles of consolidation Use of estimates Revenue recognition The Company recognizes revenue from fixed-price and modified fixed-price contracts for turnkey energy conservation projects using the percentage-of-completion method of accounting. The percentage-of-completion is computed by dividing the actual incurred cost to date by the most recent estimated total cost to complete the project. The computed percentage is applied to the expected revenue for the project to calculate the contract revenue to be recognized in the current period. This method is used because management considers total cost to be the best available measure of progress on these contracts. Contract costs include all direct material and labor costs and indirect costs related to contract performance. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. The current asset “unbilled contract receivables” represents revenues in excess of amounts billed, which management believes will generally be billed within the next twelve months. The Company records sales tax revenue on a gross basis (included in revenues and costs). For the years ended December 31, 2015, 2014 and 2013, revenues from sales taxes were $4.5 million, $2.7 million and $0.5 million, respectively. Warranties and product liability (in thousands) Year Ended December 31, 2015 2014 2013 Warranty liability at January 1, $ 443 $ 597 $ 346 Warranty liability assumed in acquisitions — — 101 Revision of warranty estimate (100 ) (185 ) — Provisions for current year sales 233 196 348 Current year claims (153 ) (165 ) (198 ) Warranty liability at December 31, $ 423 $ 443 $ 597 Fair value measurements Level 1 Level 2 - Level 3 Fair value estimates discussed herein are based upon certain market assumptions and pertinent information available to management as of December 31, 2015. The Company uses the market approach to measure fair value for its Level 1 financial assets and liabilities. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The respective carrying value of certain balance sheet financial instruments approximates its fair value. These financial instruments include cash, trade receivables, related party payables, accounts payable, accrued liabilities and short-term borrowings. Fair values were estimated to approximate carrying values for these financial instruments since they are short term in nature and they are receivable or payable on demand. The estimated fair value of assets and liabilities acquired in business combinations and reporting units and long-lived assets used in the related asset impairment tests utilize inputs classified as Level 3 in the fair value hierarchy. Based on the borrowing rates currently available to the Company for bank loans with similar terms and average maturities, the fair value of borrowings under our Revolving Credit facility and Notes payable are equal to the carrying value (see Note 15). The Company determines the fair value of certain purchase price obligations on a recurring basis based on a probability-weighted discounted cash flow analysis and Monte Carlo simulation. The fair value remeasurement is based on significant inputs not observable in the market and thus represents a Level 3 measurement as defined in the fair value hierarchy. In each period, the Company reassesses its current estimates of performance relative to the stated targets and adjusts the liability to fair value. Any such adjustments are included in Acquisition, severance and transition costs, a component of Selling, general and administrative expense in the Consolidated Statement of Operations. Changes in the fair value of purchase price obligations for the year ended December 31, 2015 were as follows: (in thousands) 2015 Fair value, January 1 $ 12,355 Fair value of contingent consideration issued during the period 1,800 Fair value of acquisition liabilities paid during the period (6,566 ) Change in fair value 864 Fair value, December 31 $ 8,453 The following table presents quantitative information about Level 3 fair value measurements as of December 31, 2015: (in thousands) Fair Value at Valuation Technique Unobservable Inputs Earnout liabilities $ 7,231 Income approach Discount rate – 15.5% Stock distribution price floor 1,222 Monte Carlo Volatility – 60% simulation Risk free rate – 1.2% Dividend yield – 0% Fair value, December 31, 2015 $ 8,453 Derivative financial instruments – Cash equivalents Accounts receivable (in thousands) 2015 2014 2013 Allowance for doubtful accounts at January 1, $ 108 $ 210 $ 57 Additions 1,260 350 170 Write-offs (363 ) (452 ) (17 ) Allowance for doubtful accounts at December 31, $ 1,005 $ 108 $ 210 Inventories Property and equipment Estimated useful lives Machinery and equipment 3-7 years Furniture and fixtures 5-7 years Computers and software 3-7 years Motor vehicles 5 years Leasehold improvements Lesser of lease term or estimated useful life Intangible assets and goodwill Determining the fair value of a reporting unit is judgmental in nature and requires the use of significant estimates and assumptions, including revenue growth rates, strategic plans and future market conditions, among others. There can be no assurance that the Company’s estimates and assumptions made for purposes of the goodwill impairment testing will prove to be accurate predictions of the future. Changes in assumptions and estimates could cause the Company to perform an impairment test prior to the annual impairment test scheduled in the fourth quarter. Long-lived assets Accrued rent Shipping and handling costs Research and development Advertising Income taxes The Company applies the provisions of FASB ASC 740-10, “Accounting for “Uncertainty in Income Taxes”, and has not recognized a liability pursuant to that standard. In addition, a reconciliation of the beginning and ending amount of unrecognized tax benefits has not been provided since there are no unrecognized benefits since the date of adoption. If there were an unrecognized tax benefit, the Company would recognize interest accrued related to unrecognized tax benefits in interest expense and penalties in operating expenses. The Company evaluates the adequacy of the valuation allowance annually and, if its assessment of whether it is more likely than not that the related tax benefits will be realized changes, the valuation allowance will be increased or reduced with a corresponding benefit or charge included in income. Management evaluated the adequacy of the valuation allowance at December 31, 2015, 2014 and 2013 in light of the historical results of operations and concluded that a full valuation allowance for net deferred tax assets was required. In connection with the acquisitions in 2014, the Company recorded deferred tax liabilities of $6.6 million. These net deferred tax liabilities can be used to reduce net deferred tax assets, and accordingly, the Company reduced its valuation allowance by this amount. No provision for income taxes has been recorded for the years ended December 31, 2015 and 2013 since the tax benefits of the losses incurred have been offset by a corresponding increase in the deferred tax valuation allowance. Stock-based compensation The Company values restricted stock awards to employees at the quoted market price on the grant date. The Company estimates the fair value of option awards issued under its stock option plans on the date of grant using a Black-Scholes option-pricing model that uses the assumptions noted below. The Company estimates the volatility of its common stock at the date of grant based on the historical volatility of its common stock. The Company determines the expected life based on historical experience with similar awards, giving consideration to the contractual terms, vesting schedules and post-vesting forfeitures. For shares that vest contingent upon achievement of certain performance criteria, an estimate of the probability of achievement is applied in the estimate of fair value. If the goals are not met, no compensation cost is recognized and any previously recognized compensation cost is reversed. The Company bases the risk-free interest rate on the implied yield currently available on U.S. Treasury issues with an equivalent remaining term approximately equal to the expected life of the award. The Company has never paid any cash dividends on its common stock and does not anticipate paying any cash dividends in the foreseeable future. No options were awarded in the years ended December 31, 2015 and 2013. For the year ended December 31, 2014, the Company computed expense for each group utilizing the following assumptions: Year Ended December 31, 2014 Expected volatility 94.2 % Weighted-average volatility 94.2 % Risk-free interest rate 1.64 % Expected dividend yield 0 % Expected life in years 3.5 – 8.6 The Company from time to time enters into arrangements with non-employee service providers pursuant to which it issues restricted stock vesting over specified periods for time-based services. These arrangements are accounted for under the provisions of FASB ASC 505-50 “Equity-Based Payments to Non-Employees”. Pursuant to this standard, the restricted stock is valued at the quoted price at the date of vesting. Prior to vesting, compensation is recorded on a cumulative basis based on the quoted market price at the end of the reporting period. Loss per share In connection with the 2014 acquisitions (see Note 2), the Company is unconditionally obligated during 2015, 2016 and 2017 to issue an additional 2,929,669 shares of its common stock and 8,035,826 shares of its common stock as of December 31, 2015 and 2014, respectively. These potentially dilutive shares have been included in the 2015 and 2014 computation of basic and diluted earnings per share, respectively. Also in connection with the 2014 and 2015 acquisitions, the Company is contingently obligated to pay up to $6.5 million as of December 31, 2015 and $11.7 million as of December 31, 2014, or at its option, an equivalent amount of common shares based upon its then-current market value, assuming certain performance criteria have been met. These shares have been excluded from the 2015 and 2014 computation of diluted earnings per share because the effect would be antidilutive. The Preferred Stock Exchange has been accounted for as provided in ASC S99-2, which states that in such an extinguishment of preferred stock, the difference between (1) the fair value of the consideration transferred to the holders of the preferred stock and (2) the carrying amount of the preferred stock in the Company’s balance sheet, should be reflected in a manner similar to a dividend on preferred stock and subtracted from net income to arrive at income attributable to common shareholders in the calculation of earnings per share. Under this method, $5.3 million has been subtracted from the Company’s net loss to arrive at net loss attributable to common stockholders for the year ended December 31, 2014. Contingencies Recent accounting pronouncements In August 2014, the FASB issued ASU No. 2014-15 (“ASU 2014-15”), Presentation of Financial Statements—Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. This ASU requires management to assess and evaluate whether conditions or events exist, considered in the aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the financial statements issue date. The provisions of ASU 2014-15 are effective for annual periods beginning after December 15, 2016 and for annual and interim periods thereafter; early adoption is permitted. The adoption of ASU 2014-15 is not expected to have a material effect on our consolidated financial statements. In January 2015, the FASB issued ASU No. 2015-01, Income Statement – Extraordinary and Unusual Items (Subtopic 225-20), which eliminates the accounting concept of extraordinary items for periods beginning after December 15, 2015. The adoption of this ASU is not expected to have a material effect on our consolidated financial statements. In February 2015, the FASB issued ASU 2015-02, “Amendments to the Consolidation Analysis”, which modifies the criteria for evaluating whether certain legal entities should be consolidated. The provisions of the ASU are effective for fiscal periods beginning after December 15, 2015, however earlier adoption is permitted. The Company has adopted the ASU effective January 1, 2015, without material effect on its consolidated financial statements. In April 2015, the FASB issued ASU 2015-03, “Simplifying the Presentation of Debt Issuance Costs”, which requires debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. In August 2015, the FASB issued ASU 2015-15, “Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements”, that allows an entity to defer and present debt issuance costs as an asset and subsequently amortize the deferred debt issuance costs ratably over the term of the line-of-credit arrangement. The provisions of the ASU are effective for periods beginning after December 15, 2015. The adoption of this ASU is not expected to have a material effect on our consolidated financial statements. In July 2015, the FASB issued ASU 2015-11, “Simplifying the Measurement of Inventory”, which require an entity to measure inventory at the lower of cost and net realizable value. The provisions of the ASU are effective for periods beginning after December 15, 2016. The adoption of this ASU is not expected to have a material effect on our consolidated financial statements. In September 2015, the FASB issued ASU 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments”, that eliminates the requirement to restate prior period financial statements for measurement adjustments. The new guidance requires that the cumulative impact of a measurement period adjustment be recognized in the reporting period in which the adjustment is identified. The provisions of the ASU are effective for periods beginning after December 15, 2015. The adoption of this ASU is not expected to have a material effect on our consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, “Leases”, that requires lessees to recognize a right-of-use asset and a lease liability for virtually all of their leases. The standard is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2018. The Company has not determined the effect that this accounting pronouncement will have on its financial statements.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2015
Acquisitions	2. Acquisitions: Energy Source The following amounts represent the determination of the fair value of identifiable assets acquired and liabilities assumed in the Energy Source acquisition: (in thousands) Tangible assets $ 5,379 Goodwill 21,276 Intangible assets 8,768 Assets acquired 35,423 Liabilities assumed 3,921 Purchase price $ 31,502 The acquired intangible assets are being amortized consistent with the period the underlying cash flows are generated. Goodwill is expected to be deductible for income tax purposes. E-Lighting All Around Value Lighting The following amounts represent the determination of the fair value of identifiable assets acquired and liabilities assumed from the Value Lighting acquisition. The excess of the purchase price over the estimated fair value of the net tangible assets acquired was allocated to intangible assets of $20.0 million and goodwill of $18.6 million. (in thousands) Current Assets $ 16,260 Goodwill 18,635 Intangible Assets 19,951 Other assets 2,901 Assets acquired 57,747 Accounts payable and other liabilities 12,613 Deferred income tax liability 5,825 Liabilities assumed 18,438 Purchase price $ 39,309 The acquired intangibles are being amortized consistent with the period the underlying cash flows are generated. Goodwill is not expected to be deductible for income tax purposes. Value Lighting achieved its 2014 performance targets, and as a result, during the quarter ended March 31, 2015, the Company issued 4.9 million shares of its common stock (valued at $5.5 million) in payment of the 2014 contingent purchase consideration. Value Lighting achieved its 2015 performance targets and earned $5.5 million. Payment in common stock or cash, at the Company’s option, is expected to be made by March 31, 2016. Other Pro forma information Year Ended December 31, (in thousands) 2015 2014 Revenues $ 138,524 $ 115,900 Operating loss $ (1,223 ) $ (8,931 ) Net loss $ (2,993 ) $ (4,063 ) The pro forma results for the years ended December 31, 2015 and 2014, include the amortization of the customer backlog of $0.4 million and $2.4 million, respectively, and acquisition, severance and transition costs of $2.0 million and $2.5 million, respectively. The pro forma results for the year ended December 31, 2014 also include an income tax benefit of $6.6 million. These non-recurring charges and credits are directly related to the acquisitions but do not have a continuing impact on the results of operations. The revenue of the 2015 acquisitions included in the Company’s 2015 actual results of operations from their respective acquisition dates through December 31, 2015 totaled $16.3 million. The net income of the 2015 acquisitions included in the Company’s 2015 actual results of operations from their respective acquisition dates through December 31, 2015 totaled $2.9 million. The revenue of the 2014 acquisitions, included in the Company’s 2014 actual results operations from their respective acquisition dates through December 31, 2014 totaled $46.2 million. The net income of the 2014 acquisitions, included in the Company’s 2014 actual results of operations, from their respective acquisition dates through December 31, 2014 totaled $1.6 million.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2015
Inventories	3. Inventories: Inventories, which are primarily purchased from third parties, consist of the following: (in thousands) December 31, 2015 2014 Raw materials $ 3,789 $ 3,895 Finished goods 20,292 11,447 24,081 15,342 Less provision for obsolescence (1,946 ) (1,669 ) Net inventories $ 22,135 $ 13,673 (in thousands) Year Ended December 31, 2015 2014 2013 Inventory reserve at January 1, $ 1,669 $ 1,708 $ 1,669 Additions 1,087 179 1,644 Write offs (810 ) (218 ) (1,605 ) Inventory reserve at December 31, $ 1,946 $ 1,669 $ 1,708

Intangible Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2015
Intangible Assets	4. Intangible Assets: At December 31, 2015, the Company had the following intangible assets subject to amortization: (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Patents $ 268 $ (177 ) $ 91 Trade names 14,981 (2,884 ) 12,097 Customer relationships 28,901 (4,488 ) 24,413 Customer contracts and backlog 4,822 (4,481 ) 341 Technology 1,953 (248 ) 1,705 Favorable lease 334 (140 ) 194 Non-compete agreements 1,113 (369 ) 744 Product certification and licensing costs 72 (62 ) 10 $ 52,444 $ (12,849 ) $ 39,595 At December 31, 2014, the Company had the following intangible assets subject to amortization: (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Patents $ 268 $ (153 ) $ 115 Trade names 11,358 (1,280 ) 10,078 Customer relationships 24,455 (2,942 ) 21,513 Customer contracts and backlog 4,496 (4,038 ) 458 Technology 1,953 (196 ) 1,757 Favorable lease 334 (64 ) 270 Non-compete agreements 740 (151 ) 589 Product certification and licensing costs 61 (57 ) 4 $ 43,665 $ (8,881 ) $ 34,784 Intangibles are amortized using the straight-line method over their estimated useful lives. Amortization expense during the years ended December 31, 2015, 2014 and 2013 is as follows: (in thousands) Estimated useful life 2015 2014 2013 Patents and trade names 12 to 17 years $ 939 $ 688 $ 388 Customer relationships 10 to 15 years 2,094 1,694 761 Customer contracts and backlog 1 to 3 years 443 2,425 1,613 Technology 10 years 195 129 67 Favorable Leases 10 years 77 61 3 Non-compete agreement 6 years 215 141 10 Product certification and licensing costs 3 years 5 11 17 Total $ 3,968 $ 5,149 $ 2,859 Amortization expense for intangible assets for the next 5 years is estimated as follows: (in thousands) 2016 2017 2018 2019 2020 Patents $ 23 $ 23 $ 23 $ 22 $ — Trade names 1,135 1,135 1,135 1,135 1,080 Customer relationships 2,267 2,267 2,200 2,166 2,166 Customer contracts and backlog 246 56 39 — — Technology 195 195 195 195 195 Favorable Leases 43 22 22 22 22 Non-compete agreement 283 222 171 68 — Product certification and licensing costs 4 3 3 — — Total $ 4,196 $ 3,923 $ 3,788 $ 3,608 $ 3,463

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2015
Goodwill	5. Goodwill: The changes in the carrying amount of goodwill for the years ended December 31, 2015 and 2014 are presented below: (in thousands) Balance, January 1, 2014 $ 21,498 Acquisitions 21,493 Balance, December 31, 2014 42,991 Acquisitions 21,276 Balance, December 31, 2015 $ 64,267 Accumulated Balances: Goodwill $ 66,663 Accumulated impairment losses (2,396 ) Balance, December 31, 2015 $ 64,267 During the fourth quarter of 2015, the Company performed step one of the impairment testing as described in Note 1 which indicated the fair value of its reporting unit exceeded the net carrying amount of the net assets of its reporting unit. Accordingly, step two was not performed.

Common Stock Transactions

Common Stock Transactions	12 Months Ended
	Dec. 31, 2015
Common Stock Transactions	6. Common Stock Transactions: As of December 31, 2015, the Company had 159.6 million shares of its common stock outstanding, of which 84.2 million shares, or 52.8%, were beneficially owned by RVL and its affiliates. On August 5, 2015, in connection with the Energy Source acquisition (see Note 2), the Company issued 8.8 million of its common shares, valued at $9.7 million, to the sellers of Energy Source, and 8.7 million shares for $9.5 million, net of expenses, to third party investors to fund the cash portion of the purchase price. On May 11, 2015, the shareholders approved an amendment to the Company’s Certificate of Incorporation to increase the authorized shares of common stock from 150,000,000 to 200,000,000. On May 11, 2015, the shareholders approved a proposal to grant authority to the Board of Directors (the “Board”) to potentially conduct a reverse stock split (the “Split”), if and when the Board determines it is in the best interests of the Company and its shareholders to do so. Additionally, the Board was granted authority to determine the specific ratio at which to conduct the Split, within the range of 1-for-4 to 1-for-7 based upon then-current market conditions, or to abandon the Split if the Board determines that it is not in the best interests of the Company and its shareholders. On February 16, 2016 the Company filed a Schedule 14C Information Statement to inform shareholders of its intent to effect a reverse stock split of its Common Stock at a ratio of 1-for-10, as approved by the Board of Directors on February 3, 2016. On December 1, 2014, the Company completed an underwritten public offering of 8 million shares of its common stock, at an offering price of $1.25. Net proceeds of the offering approximated $8.6 million, which was used for general corporate purposes. On December 1, 2014, the Company completed the Preferred Stock Exchange, in which the Company exchanged all outstanding preferred stock, including accrued but unpaid dividends thereon, for 36,300,171 shares of unregistered common stock. All rights relating to the preferred stock were extinguished as a result of this transaction, and at December 31, 2014 the Company has no outstanding preferred stock. See Note 7 for additional information. The Company has a Management Services Agreement (the “Management Agreement”) with Aston, an affiliate of RVL, under which Aston provides consulting services in connection with financing matters, budgeting, strategic planning and business development. On April 9, 2013, in consideration of the services provided, the Company issued 500,000 shares of restricted common stock to Aston, vesting in three equal annual increments, with the first such vesting date being September 25, 2013. On April 21, 2014, as compensation for management services provided, the Company granted 300,000 shares of restricted stock to Aston, which vest in three annual installments with the first such vesting date of September 25, 2014. The Audit Committee of the Board will consider from time to time (at a minimum at such times when the Compensation Committee of the Board evaluates director compensation) whether additional compensation to Aston is appropriate given the nature of the services provided. Stock warrants At December 31, 2015, the Company has reserved common stock for issuance in relation to the following: Employee stock options and restricted stock 2,752,020 Shares to be issued for acquisitions 2,929,669 Total reserved shares 5,681,689

Preferred Stock

Preferred Stock	12 Months Ended
	Dec. 31, 2015
Preferred Stock	7. Preferred Stock The Company is authorized to issue up to 5,000,000 shares of preferred stock. As a result of the December 1, 2014 Preferred Stock Exchange, all rights relating to the preferred stock were extinguished, and at December 31, 2015 the Company has no outstanding preferred stock. Series C Convertible Preferred Stock On December 20, 2012, the Company issued to RVL 10,000 shares of the Series C Preferred Stock, for cash of $10 million, which was used to fund the Seesmart acquisition (Note 2) and for working capital purposes. The Series C Preferred Stock was initially non-voting and non-convertible. The Series C Preferred Stock became voting and convertible into shares of the Company’s common stock effective May 15, 2013, following the Company’s compliance with the requirements of Rule 14c-2 of the Securities Exchange Act of 1934, as amended. Additionally RVL was given the right to appoint four members to the Company’s board of directors (the “Board”), with the size of the Board not to exceed seven members. RVL’s right to appoint four directors will decline proportionately to take into account subsequent material reductions in RVL’s ownership position in the Company. Each share of Series C Preferred Stock carried a liquidation preference and was entitled to receive cumulative dividends payable at a rate per annum of 10% of the Series C Stated Value on the date of issuance (i.e. $1,000). Such dividends were payable through the issuance of additional shares of Series C Preferred Stock on each anniversary of the date of issuance. Additionally, the Series C Preferred Stock shared ratably on an as-converted basis with the common stock in the payment of all other dividends and distributions. For the year ended December 31, 2013, the Company accrued dividends of $1,014,000. On December 1, 2014, all outstanding shares of Series C Preferred were converted to common stock in the Preferred Stock Exchange. Series D Convertible Preferred Stock On December 20, 2012, the Company issued 11,177 shares of Series D Preferred Stock, and in the first quarter of 2013, the Company issued 738 shares of Series D Preferred Stock, as partial consideration in the Seesmart acquisition (Note 2). The Series D Preferred Stock had a liquidation preference of $100 per share and shared ratably on an as-converted basis with the Company’s common stock in the payment of dividends and distributions. The Series D Preferred Stock was non-voting and was initially non-convertible. On May 15, 2013, all 11,915 shares of Series D Preferred Stock were automatically converted into 1,712,167 shares of common stock at a conversion price per share equal to $0.6959 (the “Series D Conversion Price”). Series E Redeemable Convertible Preferred Stock On February 21, 2013, the Company issued to RVL 5,000 shares of Series E Preferred Stock for cash of $5 million, which was used for working capital purposes. The Series E Preferred Stock was initially non-voting and non-convertible and became voting and convertible into shares of the Company’s common stock on May 15, 2013. Each share of Series E Preferred Stock was entitled to receive cumulative dividends payable at a rate per annum of 5% of the Series E Stated Value then in effect. Additionally, the Series E Preferred Stock shared ratably on an as-converted basis with the common stock in the payment of all other dividends and distributions. For the year ended December 31, 2013, the Company accrued dividends of $218,000. In accordance with Accounting Standards Codification 480 (ASC 480), the Company classified the Series E Preferred Stock as temporary equity in the financial statements as it was subject to mandatory redemption at the option of the holder. The Company concluded that the Series E Preferred Stock is more akin to a debt-type instrument than an equity-type instrument. Accordingly the Series E Preferred Stock was accreted to the redemption amount in effect on the balance sheet date. The embedded conversion feature was not deemed to be closely and clearly related to the debt-type host instrument and before the modification described below did not meet the requirements for classification as equity. Accordingly, it was accounted for as a liability at fair value with subsequent changes in fair value included in earnings. The change in fair value of the embedded derivative included in the statement of earnings was $ 7.0 million were for the year ended December 31, 2013. On May 14, 2013, the host instrument was modified by eliminating certain provisions that prevented the embedded conversion feature from meeting the criteria for classification as equity. Accordingly, the fair value of the embedded conversion liability of $8.6 million as of May 14, 2013 was reclassified to paid in capital. On December 1, 2014, all outstanding shares of Series E Preferred were converted to common stock in the Preferred Stock Exchange described above. Series F Redeemable Convertible Preferred Stock On August 22, 2013, the Company issued to RVL 5,000 shares of Series F Preferred Stock for cash of $5 million, which was used for working capital purposes. Each share of Series F Preferred Stock was voting and carried a liquidation preference. It was redeemable for cash at the option of the Company, and convertible to either common stock or cash at the option of the holder. Additionally, it was entitled to receive dividends at a rate per annum equal to 7% of the Series F Stated Value then in effect. For the year ended December 31, 2013, the Company accrued Series F Dividends of $129,000. All outstanding shares of Series F preferred stock were redeemed in connection with the exchange of Series F preferred stock for Series G preferred stock described below. Following the redemption, the Series F preferred stock was cancelled in June 2014. In accordance with Accounting Standards Codification 489 (“ASC 480”), the Company classified the Series F Preferred Stock as temporary equity in the financial statements as it was subject to mandatory redemption at the option of the holder. The Company concluded that the Series F Preferred Stock is more akin to a debt-type instrument than an equity-type instrument. Accordingly the preferred stock was accreted to the redemption amount in effect on the balance sheet date. Series G Redeemable Convertible Preferred stock On June 30, 2014, the Company issued to RVL and its affiliate an aggregate of 18,000 shares Series G Preferred Stock as follows. The Company issued 10,956,000 shares in exchange for cancellation of the outstanding balance on the RVL Note (see Note 16), which aggregated $10,956,000 including accrued and unpaid interest thereon. An additional 5,404 shares were issued in exchange for the 5,000 shares (including accrued and unpaid dividends thereon) of the Company’s outstanding Series F Preferred Stock, and 1,640 shares were issued to Aston in exchange for $1,640,085, a portion of the outstanding balance on the February Note (see Note 15). The Series G Preferred Stock carried a liquidation preference, and was voting and convertible into shares of the Company’s common stock at any time at the option of the holder at a conversion price equal to $2.30. In accordance with ASC 480, the Company classified the Series G Preferred Stock as temporary equity in the financial statements as it was subject to mandatory redemption at the option of the holder. Additionally, the Company had the option to redeem all or any part of the Series G Preferred Stock for cash at any time subject to the holder’s right to convert and require delivery of shares of common stock. For so long as shares of Series G Preferred Stock were outstanding, the Company was prohibited from taking certain actions specified in the Series G certificate of designations without the consent of a majority of the holders. Each share of Series G Preferred Stock was entitled to receive cumulative dividends payable at a rate per annum of nine percent (9%) of the Series G Stated Value. On December 1, 2014, all outstanding shares of Series G Preferred were converted to common stock in the Preferred Stock Exchange.

Stock-Based Compensation Plans

Stock-Based Compensation Plans	12 Months Ended
	Dec. 31, 2015
Stock-Based Compensation Plans	8. Stock-Based Compensation Plans: On September 18, 2003, the Company adopted a stock option plan (the “2003 Plan”) that provides for the grant of incentive stock options and nonqualified stock options. The option price of incentive stock options must be at least 100% of market value at the date of the grant and incentive stock options have a maximum term of 10 years. Options granted typically vest ratably over a three-year period or are based on achievement of performance criteria. The Company grants selected executives and other key employees share option awards, whose vesting is contingent upon meeting various departmental and company-wide performance goals including meeting sales targets and net profit targets. In March 2009, the Company amended the 2003 Plan to extend the post-service termination exercise period of non-statutory stock options granted to directors for their service to the Company as directors from three months after the director’s termination date to the tenth anniversary of the date of grant. The 2003 Plan does not contain any provisions which would trigger automatic vesting upon a change in control. The Board has determined that no further awards will be made pursuant to the 2003 Plan. As of December 31, 2015, options for 289,834 shares of common stock were vested and exercisable under the 2003 Plan, and 289,834 shares have been reserved for issuance under the 2003 Plan. In May 2013, shareholders approved the 2013 Stock Incentive Plan (the “2013 Plan”). An aggregate of 6,000,000 shares of the Company’s common stock may be issued pursuant to the 2013 Plan, as amended, to officers, employees, non-employee directors and consultants of the Company and its affiliates. Awards under the plan may be in the form of stock options, which may constitute incentive stock options, or non-qualified stock options, restricted shares, restricted stock units, performance awards, stock bonus awards, share appreciation rights and other stock based awards. Stock options will be issued at an exercise price not less than 100% of the market value at the date of grant and expire no later than ten years after the date of grant. Stock awards typically vest over three years but vesting periods for non-employees may be longer or based on the achievement of performance goals. Through December 31, 2015, the Company has issued 25,000 options, 2,706,664 restricted shares, net of forfeitures, and 831,150 shares for incentive compensation, under the 2013 Plan. A total of 2,462,186 common shares (including 25,000 for stock options already awarded) are reserved for future issuance under the 2013 Plan. A summary of non-vested restricted shares follows: Number of Weighted Outstanding non-vested December 31, 2014 1,255,667 $ 2.38 Shares granted 1,103,500 1.33 Shares vested (666,500 ) 2.29 Shares forfeited (346,334 ) 2.03 Outstanding non-vested December 31, 2015 1,346,333 $ 1.66 The weighted average term of employee restricted stock is three years. Unrecognized compensation expense for employee restricted stock grants outstanding at December 31, 2015 amounted to $1,425,000, which will be amortized over the next three years. The following table summarizes option activity of the 2003 and 2013 Plans. Substantially all of the options are exercisable as of December 31, 2015: Number of Shares Outstanding Under Option Weighted Balance, December 31, 2014 414,380 $ 4.29 Options granted at market — — Options exercised — — Options forfeited or expired (99,546 ) 4.07 Balance, December 31, 2015 314,834 $ 4.36 The total future compensation cost related to non-vested stock option awards is estimated to be nominal. The total intrinsic value of options exercised during the year ended December 31, 2013 was $95,000. No options were exercised in 2015 and 2014. Options outstanding at December 31, 2015 had no intrinsic value. The total fair value of options vested during the years ended December 31, 2015, 2014 and 2013 was nominal. Under the 2003 Plan, 153,600 and 7,640 performance options expired during 2013 and 2014, respectively. These performance options were also included in the summary of option activity above. Stock-based compensation expense for employees recognized in the accompanying statements of operations for the years ended December 31, 2015, 2014 and 2013 was $2,422,000, $1,751,000 and $303,000, respectively. Stock-based compensation expense (benefit) recorded with respect to non-employee service providers during the years ended December 31, 2015, 2014 and 2013 was $297,000, ($40,000) and $506,000, respectively. Stock-based compensation for 2015 and 2014 includes $1,123,000 and $941,000, respectively, of bonus and commissions paid in the form of common stock.

Operating Leases

Operating Leases	12 Months Ended
	Dec. 31, 2015
Operating Leases	9. Operating Leases: The Company leases office, warehouse and manufacturing facilities throughout the United States. Generally, the leases require the Company to pay the operating expenses of the properties, in some cases including property taxes. The majority of the Company’s leases include renewal options at existing or current market rates. The following schedule shows the total rent expense under operating leases: (in thousands) Year Ended December 31, 2015 2014 2013 Rent expense $ 2,026 $ 953 $ 577 Less sublease rentals — — (47 ) Total rent expense $ 2,026 $ 953 $ 530 The future minimum payment obligations as of December 31, 2015 for operating leases are as follows: (in thousands) 2016 $ 2,466 2017 2,313 2018 2,271 2019 1,709 2020 832 Thereafter 1,430 Total future payment obligations $ 11,021

Risk Concentrations

Risk Concentrations	12 Months Ended
	Dec. 31, 2015
Risk Concentrations	10. Risk Concentrations: The Company’s financial instruments that are exposed to concentrations of credit risk consist of cash, cash equivalents, trade accounts receivable and accounts payable. The Company places its cash and cash equivalents with high credit quality institutions. At times such balances may be in excess of the FDIC insurance limit. A portion of the Company’s LEDs and LED lighting products and systems are manufactured by select contract manufacturers. While the Company believes alternative manufacturers for the production of these products are available, the Company has selected these particular manufacturers based on their ability to consistently produce these products per the Company’s specifications ensuring the best quality product at the most cost effective price. The Company depends on these manufacturers to satisfy performance and quality specifications and to dedicate sufficient production capacity for finished products within scheduled delivery times. Accordingly, the loss of one or more of these manufacturers or delays in obtaining shipments could have a material adverse effect on the Company’s operations until such time as an alternative manufacturer could be found.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2015
Income Taxes	11. Income Taxes: The Company did not record any current or deferred U.S. federal income tax provision or benefit for December 31, 2015 and 2013 because of its net operating loss carryforwards. The Company has recognized a full valuation allowance related to its net deferred tax assets, including substantial net operating loss carryforwards. In conjunction with the 2014 acquisitions of Value Lighting and All Around, the Company recorded a net deferred tax liability of $6.6 million in its purchase price allocation (see Note 2). This liability can be used to reduce the overall deferred tax asset of the Company and as a result, the Company recognized a corresponding tax benefit related to the reduction of the existing valuation allowance. This benefit resulted in a credit recorded in earnings of $6.6 million for 2014. As of December 31, 2015, the Company had net operating loss carryforwards for federal and state income tax purposes of $24.9 million and $35.6 million, respectively, which expire between 2020 and 2035. Utilization of net operating loss carryforwards is dependent on generating future taxable income of the appropriate type and in the appropriate jurisdiction. In addition, as a result of transactions consummated during 2012 and 2013, including the issuance of common and preferred stock by the Company and the acquisition of Seesmart and Relume, substantially all of the Company’s net operating loss carryforwards as of December 31, 2014 are subject to limitations imposed by Section 382 of the Internal Revenue Code. During 2013 the Company performed an evaluation of the Section 382 limitations on the use of net operating loss carryforwards and has adjusted them accordingly. The Company has recognized a full valuation allowance related to its remaining net deferred tax assets, including the remaining net operating loss carryforwards. Components of deferred tax assets (liabilities) are as follows: (in thousands) December 31, 2015 2014 Accounts receivable $ 430 $ 233 Inventories 1,324 1,847 Accrued expenses 749 818 Depreciation (97 ) (5 ) Intangible assets (9,843 ) (11,232 ) Stock options 1,410 1,339 Deferred revenue 3 22 Other 15 5 Net operating loss carryforwards 11,123 11,860 Net deferred tax asset 5,114 4,887 Valuation allowance (5,114 ) (4,887 ) $ — $ — In accordance with FASB ASC 740 “Income Taxes”, valuation allowances are provided against deferred tax assets if, based on the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The Company has not recorded a provision for income taxes in 2015 and 2013 as the deferred tax benefits of the net losses were offset by a corresponding increase in the deferred tax valuation allowance. The following is a reconciliation of tax computed at the statutory federal rate to the income tax expense in the statements of operations for the years ended December 31, 2015, 2014 and 2013: December 31, (in thousands, except %) 2015 2014 2013 Amount % Amount % Amount % Tax benefit at statutory federal rate $ (810 ) (34.0 ) $ (3,988 ) (34.0 ) $ (5,719 ) (34.0 ) Deferred state tax benefit 5 0.2 (383 ) (3.3 ) (258 ) (1.5 ) Change in valuation allowance 371 16.2 4,982 42.5 (10,446 ) (62.1 ) Tax benefit of acquisition — — (6,550 ) (55.8 ) — — Adjustment to net operating loss carryforwards (482 ) (21.1 ) (120 ) (1.0 ) 13,828 82.2 Non-deductible expenses 1,060 45.0 160 1.4 2,595 15.4 Impact of rate change (144 ) (6.3 ) (651 ) (5.6 ) — — Income tax benefit $ — — $ (6,550 ) (55.8 ) $ — —

Foreign and Domestic Operations

Foreign and Domestic Operations	12 Months Ended
	Dec. 31, 2015
Foreign and Domestic Operations	12. Foreign and Domestic Operations: Net revenues by geographic location, based on location of customers, were as follows: (in thousands) December 31, 2015 2014 2013 United States $ 129,328 $ 74,839 $ 25,243 Canada 257 1,839 574 Other 71 162 243 Total $ 129,656 $ 76,840 $ 26,060 Net long-lived assets by geographic location were as follows: (in thousands) December 31, 2015 2014 2013 United States $ 40,749 $ 35,883 $ 18,489 Other 93 112 137 Total $ 40,842 $ 35,995 $ 18,626

Benefit Plans

Benefit Plans	12 Months Ended
	Dec. 31, 2015
Benefit Plans	13 Benefit Plans: The Company has established a profit sharing plan that permits participants to make contributions by salary reduction pursuant to Section 401(k) of the Internal Revenue Code of 1986, as amended. On November 1, 2008, the Company elected to cease matching contributions. The Company elected to reinstate the matching contribution during 2013. During 2015, 2014 and 2013, the Company had $166,000, $120,000 and $39,000, respectively, in expenses related to this plan.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2015
Related Party Transactions	14. Related Party Transactions: Financings In April 2015, our Chairman and Chief Executive Officer guaranteed $5 million of borrowings under our Revolving Credit Facility, increasing our Borrowing Base by that amount (see Note 15). Bank of America agreed to amend the Revolving Credit Facility to enable the Company to borrow up to $30 million under certain conditions. In February 2014, the Company entered in an arrangement with Aston, an affiliate of our Chairman and Chief Executive Officer, pursuant to which the Company borrowed $3.5 million for general corporate purposes (the “February Note”). The borrowing bore interest at 9% annually and originally had a scheduled maturity of April 1, 2015. The Company had the option to prepay the note at any time without penalty. In April 2014, the Company borrowed an additional $1 million from Aston for general corporate purposes on the same terms and conditions as the February Note (the “April Note”). Also in April 2014, the Company borrowed $10.8 million from RVL to fund the acquisition of Value Lighting (the “RVL Note”), which bore interest at 9% annually and originally had a scheduled maturity of the earliest of April 1, 2015 or the date on which the Company received proceeds from any debt, factoring or other similar facility or equity securities in the commercial banking, private placement or public markets. In June 2014, the company exchanged the $10.8 million RVL Note and $1.6 million of the February Note plus related accrued interest, for an equivalent amount of Series G preferred stock (see Note 7). The remaining $1.9 million of the February Note, together with accrued interest thereon, was refinanced with a new Note Payable to Aston dated June 30, 2014. In addition, Aston advanced an additional $ 2.7 million for general corporate purposes in four separate transactions during May and June 2014. As of July 31, 2014, the Audit Committee ratified these advances and approved the issuance of a promissory note in respect of such amount, which bears interest and matures on April 1, 2017 and can be prepaid at any time at the option of the Company (the “July Note”). The Company has accrued interest on the July Note of $0.3 million at December 31, 2015 and recorded interest expense of $1.1 million for the year ended December 31, 2015. Investment Agreements Customer Financing Management Agreement Relocation of Corporate Headquarters RVL Transaction Fees

Financings

Financings	12 Months Ended
	Dec. 31, 2015
Financings	15. Financings In August 2015, in connection with the acquisition of Energy Source (see Note 2), the Company issued $10 million of promissory notes bearing interest at 5% per annum. The promissory notes are due on July 20, 2016 and are supported by an irrevocable letter of credit from RVL. In August 2014, the Company entered into a three-year loan and security agreement with Bank of America (“the Revolving Credit Facility”) pursuant to which the Company can borrow up to specified percentages against eligible accounts receivable and inventory as defined in the Revolving Credit Facility (the “Borrowing Base”) up to a maximum of $25 million. In April 2015, our Chairman and Chief Executive Officer guaranteed $5 million of borrowings under the Revolving Credit Facility, increasing the Borrowing Base (but not the $25 million maximum) by that amount. This guarantee may be terminated under certain circumstances. Bank of America agreed to amend the Revolving Credit Facility to enable the Company to borrow up to $30 million under certain conditions. Borrowings under the arrangement bear interest at a LIBOR rate or a defined base rate, each plus an applicable margin. The weighted average annual interest rate was 3.65% at December 31, 2015. The Company is also obligated to pay various fees monthly. Outstanding loans become payable on demand to the extent that such loans exceed the Borrowing Base, and all outstanding amounts must be repaid on August 20, 2017. All obligations under the Revolving Credit Facility are secured by the assets of the Company and its subsidiaries and are guaranteed by the Company and its subsidiaries. Borrowings outstanding as of December 31, 2015 amount to $22 million and are included in non-current liabilities in the accompanying Consolidated Balance Sheet. We are in compliance with our covenants and obligations under the facility, and we estimate that as of December 31, 2015 we are eligible to borrow an additional $2.6 million under the facility based upon current levels of inventory and accounts receivable. The Loan Agreement contains covenants which limit the ability of the Company to, among other things, (i) create, incur, guarantee or suffer to exist any indebtedness; (ii) create or suffer any lien upon any property; (iii) declare or make distributions to equity holders or create any restriction on the ability of a subsidiary to make such a distribution; (iv) make investments; (v) sell, lease, license, consign or otherwise dispose of any property; (vi) make loans or other advances of money to any person; (vii) make payments on certain indebtedness; and (viii) enter into transactions with affiliates. In addition, the Loan Agreement includes financial covenants that, on a consolidated basis, requires the Company to maintain, for the most recent twelve fiscal months, a ratio of (i) EBITDA minus Capital Expenditures (as defined in the Loan Agreement) and cash taxes paid to (ii) Fixed Charges (as defined in the Loan Agreement), of not less than 1.1 to 1.0, and a ratio of (i) Senior Debt (as defined in the loan agreement) to (ii) EBITDA of not more than 3.5 to 1.0. From time to time the Company enters into financing arrangements with RVL and its affiliates (see Note 14). In conjunction with the acquisition of Value Lighting (see Note 2), the Company refinanced $3.7 million of Value Lighting’s trade accounts payable by issuing a note payable to the creditor. The note is payable in installments through November 2018, at which time a balloon payment of $1.4 million is due. Maturities of long-term borrowings for each of the next five years are as follows: (in thousands) 2016 10,360 2017 24,951 2018 2,066 2019 — 2020 —

Quarterly Results of Operations

Quarterly Results of Operations (Unaudited)	12 Months Ended
	Dec. 31, 2015
Quarterly Results of Operations (Unaudited)	16. Quarterly Results of Operations (Unaudited): (in thousands, except per share data) First Second Third Fourth Fiscal year ended December 31, 2015: Revenues $ 20,330 $ 27,245 $ 37,733 $ 44,348 Gross profit 7,171 9,072 12,186 14,861 Net (loss) income (2,046 ) (1,488 ) (285 ) 1,437 Net (loss) income attributable to common stockholders (2,046 ) (1,488 ) (285 ) 1,437 Basic and diluted (loss) income per common share attributable to common stockholders (1) $ (0.01 ) $ (0.01 ) $ (0.00 ) $ 0.01 Fiscal year ended December 31, 2014: Revenues $ 4,952 $ 17,517 $ 26,877 $ 27,494 Gross profit 1,603 5,563 8,559 8,498 Net (loss) income (3,570 ) 2,410 (1,404 ) (2,616 ) Net (loss) income attributable to common stockholders (3,977 ) 1,100 (2,055 ) (7,913 ) Basic and diluted (loss) income per common share attributable to common stockholders (1) $ (0.04 ) $ 0.01 $ (0.02 ) $ (0.07 ) The 2015 and 2014 acquisitions are included in consolidated results of operations from their respective acquisition dates. (2) The quarterly earnings per share information is computed separately for each period. Therefore, the sum of such quarterly per share amounts may differ from the total for the year.

Summary of Significant Accoun24

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2015
Liquidity	Liquidity While the Company generated negative cash flows from operations in the full fiscal year 2015, it did achieve positive cash flows from operations in the fourth quarter of 2015 and the Company believes it has adequate resources to meet its cash requirements in the foreseeable future. On December 1, 2014, we exchanged all outstanding series of preferred stock, including accrued but unpaid dividends thereon, to an aggregate of 36,300,171 shares of our unregistered common stock (the “Preferred Stock Exchange”). All rights relating to the preferred stock were extinguished as a result of this transaction. Accordingly, we have been relieved of the ongoing obligation to pay dividends on preferred stock. In August 2014, the Company entered into a loan and security agreement with Bank of America to borrow up to $25 million on a revolving basis, based upon specified percentages of eligible receivables and inventory (“the Revolving Credit Facility”). In April 2015, our Chairman and Chief Executive Officer guaranteed $5 million of borrowings under the Revolving Credit Facility, enabling us to borrow up to $5 million in addition to the amount that is based upon receivables and inventory. This guarantee may be terminated under certain circumstances. Bank of America agreed to amend the Revolving Credit Facility to enable the Company to borrow up to $30 million under certain conditions. As of December 31, 2015, the balance on the Revolving Credit Facility was $22.0 million, with additional borrowing capacity of $2.6 million. We are in compliance with our covenants and obligations under the revolving credit facility as of March 1, 2016. Although we realized revenues of $129.7 million during the year ended December 31, 2015 and achieved positive earnings and positive cash flow from operations during the fourth quarter, we face challenges to maintain profitability, and there can be no assurance that we will sustain positive cash flows from operations or profitability. Our ability to meet our obligations in the ordinary course of business is dependent upon our ability to maintain profitable operations, maintain our revolving credit facility, or raise additional capital. Additional capital could take the form of public or private debt, equity financing, other sources of financing to fund operations, or the support of our controlling stockholder. There can be no assurance such financing will be available on terms acceptable to us or that any financing transaction will not be dilutive to our current stockholders. In addition, to accelerate the growth of our operations in response to new market opportunities or to acquire other technologies or businesses, we may need to raise additional capital. Additional capital may come from several sources, including the issuance of additional common stock, preferred stock, debt (whether convertible or not) or other securities. Increased indebtedness could negatively affect our liquidity and operating flexibility. The issuance of any additional securities could, among other things, result in substantial dilution of the percentage ownership of our stockholders at the time of issuance, result in substantial dilution of our earnings per share, and adversely affect the prevailing market price for our common stock. In addition, we may not be able to obtain additional financing on terms favorable to us, if at all. If additional funds become necessary and are not available on terms favorable to us, or at all, we may be unable to expand our business or pursue an acquisition and our business, results of operations and financial condition may be materially adversely affected.
Principles of consolidation	Principles of consolidation
Use of estimates	Use of estimates
Revenue recognition	Revenue recognition The Company recognizes revenue from fixed-price and modified fixed-price contracts for turnkey energy conservation projects using the percentage-of-completion method of accounting. The percentage-of-completion is computed by dividing the actual incurred cost to date by the most recent estimated total cost to complete the project. The computed percentage is applied to the expected revenue for the project to calculate the contract revenue to be recognized in the current period. This method is used because management considers total cost to be the best available measure of progress on these contracts. Contract costs include all direct material and labor costs and indirect costs related to contract performance. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. The current asset “unbilled contract receivables” represents revenues in excess of amounts billed, which management believes will generally be billed within the next twelve months. The Company records sales tax revenue on a gross basis (included in revenues and costs). For the years ended December 31, 2015, 2014 and 2013, revenues from sales taxes were $4.5 million, $2.7 million and $0.5 million, respectively.
Warranties and product liability	Warranties and product liability (in thousands) Year Ended December 31, 2015 2014 2013 Warranty liability at January 1, $ 443 $ 597 $ 346 Warranty liability assumed in acquisitions — — 101 Revision of warranty estimate (100 ) (185 ) — Provisions for current year sales 233 196 348 Current year claims (153 ) (165 ) (198 ) Warranty liability at December 31, $ 423 $ 443 $ 597
Fair value measurements	Fair value measurements Level 1 Level 2 - Level 3 Fair value estimates discussed herein are based upon certain market assumptions and pertinent information available to management as of December 31, 2015. The Company uses the market approach to measure fair value for its Level 1 financial assets and liabilities. The market approach uses prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities. The respective carrying value of certain balance sheet financial instruments approximates its fair value. These financial instruments include cash, trade receivables, related party payables, accounts payable, accrued liabilities and short-term borrowings. Fair values were estimated to approximate carrying values for these financial instruments since they are short term in nature and they are receivable or payable on demand. The estimated fair value of assets and liabilities acquired in business combinations and reporting units and long-lived assets used in the related asset impairment tests utilize inputs classified as Level 3 in the fair value hierarchy. Based on the borrowing rates currently available to the Company for bank loans with similar terms and average maturities, the fair value of borrowings under our Revolving Credit facility and Notes payable are equal to the carrying value (see Note 15). The Company determines the fair value of certain purchase price obligations on a recurring basis based on a probability-weighted discounted cash flow analysis and Monte Carlo simulation. The fair value remeasurement is based on significant inputs not observable in the market and thus represents a Level 3 measurement as defined in the fair value hierarchy. In each period, the Company reassesses its current estimates of performance relative to the stated targets and adjusts the liability to fair value. Any such adjustments are included in Acquisition, severance and transition costs, a component of Selling, general and administrative expense in the Consolidated Statement of Operations. Changes in the fair value of purchase price obligations for the year ended December 31, 2015 were as follows: (in thousands) 2015 Fair value, January 1 $ 12,355 Fair value of contingent consideration issued during the period 1,800 Fair value of acquisition liabilities paid during the period (6,566 ) Change in fair value 864 Fair value, December 31 $ 8,453 The following table presents quantitative information about Level 3 fair value measurements as of December 31, 2015: (in thousands) Fair Value at Valuation Technique Unobservable Inputs Earnout liabilities $ 7,231 Income approach Discount rate – 15.5% Stock distribution price floor 1,222 Monte Carlo Volatility – 60% simulation Risk free rate – 1.2% Dividend yield – 0% Fair value, December 31, 2015 $ 8,453
Derivative Financial Instruments	Derivative financial instruments –
Cash equivalents	Cash equivalents
Accounts receivable	Accounts receivable (in thousands) 2015 2014 2013 Allowance for doubtful accounts at January 1, $ 108 $ 210 $ 57 Additions 1,260 350 170 Write-offs (363 ) (452 ) (17 ) Allowance for doubtful accounts at December 31, $ 1,005 $ 108 $ 210
Inventories	Inventories
Property and equipment	Property and equipment Estimated useful lives Machinery and equipment 3-7 years Furniture and fixtures 5-7 years Computers and software 3-7 years Motor vehicles 5 years Leasehold improvements Lesser of lease term or estimated useful life
Intangible assets and goodwill	Intangible assets and goodwill Determining the fair value of a reporting unit is judgmental in nature and requires the use of significant estimates and assumptions, including revenue growth rates, strategic plans and future market conditions, among others. There can be no assurance that the Company’s estimates and assumptions made for purposes of the goodwill impairment testing will prove to be accurate predictions of the future. Changes in assumptions and estimates could cause the Company to perform an impairment test prior to the annual impairment test scheduled in the fourth quarter.
Long-lived Assets	Long-lived assets
Accrued rent	Accrued rent
Shipping and handling costs	Shipping and handling costs
Research and development	Research and development
Advertising	Advertising
Income taxes	Income taxes The Company applies the provisions of FASB ASC 740-10, “Accounting for “Uncertainty in Income Taxes”, and has not recognized a liability pursuant to that standard. In addition, a reconciliation of the beginning and ending amount of unrecognized tax benefits has not been provided since there are no unrecognized benefits since the date of adoption. If there were an unrecognized tax benefit, the Company would recognize interest accrued related to unrecognized tax benefits in interest expense and penalties in operating expenses. The Company evaluates the adequacy of the valuation allowance annually and, if its assessment of whether it is more likely than not that the related tax benefits will be realized changes, the valuation allowance will be increased or reduced with a corresponding benefit or charge included in income. Management evaluated the adequacy of the valuation allowance at December 31, 2015, 2014 and 2013 in light of the historical results of operations and concluded that a full valuation allowance for net deferred tax assets was required. In connection with the acquisitions in 2014, the Company recorded deferred tax liabilities of $6.6 million. These net deferred tax liabilities can be used to reduce net deferred tax assets, and accordingly, the Company reduced its valuation allowance by this amount. No provision for income taxes has been recorded for the years ended December 31, 2015 and 2013 since the tax benefits of the losses incurred have been offset by a corresponding increase in the deferred tax valuation allowance.
Stock-based compensation	Stock-based compensation The Company values restricted stock awards to employees at the quoted market price on the grant date. The Company estimates the fair value of option awards issued under its stock option plans on the date of grant using a Black-Scholes option-pricing model that uses the assumptions noted below. The Company estimates the volatility of its common stock at the date of grant based on the historical volatility of its common stock. The Company determines the expected life based on historical experience with similar awards, giving consideration to the contractual terms, vesting schedules and post-vesting forfeitures. For shares that vest contingent upon achievement of certain performance criteria, an estimate of the probability of achievement is applied in the estimate of fair value. If the goals are not met, no compensation cost is recognized and any previously recognized compensation cost is reversed. The Company bases the risk-free interest rate on the implied yield currently available on U.S. Treasury issues with an equivalent remaining term approximately equal to the expected life of the award. The Company has never paid any cash dividends on its common stock and does not anticipate paying any cash dividends in the foreseeable future. No options were awarded in the years ended December 31, 2015 and 2013. For the year ended December 31, 2014, the Company computed expense for each group utilizing the following assumptions: Year Ended December 31, 2014 Expected volatility 94.2 % Weighted-average volatility 94.2 % Risk-free interest rate 1.64 % Expected dividend yield 0 % Expected life in years 3.5 – 8.6 The Company from time to time enters into arrangements with non-employee service providers pursuant to which it issues restricted stock vesting over specified periods for time-based services. These arrangements are accounted for under the provisions of FASB ASC 505-50 “Equity-Based Payments to Non-Employees”. Pursuant to this standard, the restricted stock is valued at the quoted price at the date of vesting. Prior to vesting, compensation is recorded on a cumulative basis based on the quoted market price at the end of the reporting period.
Loss per share	Loss per share In connection with the 2014 acquisitions (see Note 2), the Company is unconditionally obligated during 2015, 2016 and 2017 to issue an additional 2,929,669 shares of its common stock and 8,035,826 shares of its common stock as of December 31, 2015 and 2014, respectively. These potentially dilutive shares have been included in the 2015 and 2014 computation of basic and diluted earnings per share, respectively. Also in connection with the 2014 and 2015 acquisitions, the Company is contingently obligated to pay up to $6.5 million as of December 31, 2015 and $11.7 million as of December 31, 2014, or at its option, an equivalent amount of common shares based upon its then-current market value, assuming certain performance criteria have been met. These shares have been excluded from the 2015 and 2014 computation of diluted earnings per share because the effect would be antidilutive. The Preferred Stock Exchange has been accounted for as provided in ASC S99-2, which states that in such an extinguishment of preferred stock, the difference between (1) the fair value of the consideration transferred to the holders of the preferred stock and (2) the carrying amount of the preferred stock in the Company’s balance sheet, should be reflected in a manner similar to a dividend on preferred stock and subtracted from net income to arrive at income attributable to common shareholders in the calculation of earnings per share. Under this method, $5.3 million has been subtracted from the Company’s net loss to arrive at net loss attributable to common stockholders for the year ended December 31, 2014.
Contingencies	Contingencies
Recent accounting pronouncements	Recent accounting pronouncements In August 2014, the FASB issued ASU No. 2014-15 (“ASU 2014-15”), Presentation of Financial Statements—Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern. This ASU requires management to assess and evaluate whether conditions or events exist, considered in the aggregate, that raise substantial doubt about the entity’s ability to continue as a going concern within one year after the financial statements issue date. The provisions of ASU 2014-15 are effective for annual periods beginning after December 15, 2016 and for annual and interim periods thereafter; early adoption is permitted. The adoption of ASU 2014-15 is not expected to have a material effect on our consolidated financial statements. In January 2015, the FASB issued ASU No. 2015-01, Income Statement – Extraordinary and Unusual Items (Subtopic 225-20), which eliminates the accounting concept of extraordinary items for periods beginning after December 15, 2015. The adoption of this ASU is not expected to have a material effect on our consolidated financial statements. In February 2015, the FASB issued ASU 2015-02, “Amendments to the Consolidation Analysis”, which modifies the criteria for evaluating whether certain legal entities should be consolidated. The provisions of the ASU are effective for fiscal periods beginning after December 15, 2015, however earlier adoption is permitted. The Company has adopted the ASU effective January 1, 2015, without material effect on its consolidated financial statements. In April 2015, the FASB issued ASU 2015-03, “Simplifying the Presentation of Debt Issuance Costs”, which requires debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability. In August 2015, the FASB issued ASU 2015-15, “Presentation and Subsequent Measurement of Debt Issuance Costs Associated with Line-of-Credit Arrangements”, that allows an entity to defer and present debt issuance costs as an asset and subsequently amortize the deferred debt issuance costs ratably over the term of the line-of-credit arrangement. The provisions of the ASU are effective for periods beginning after December 15, 2015. The adoption of this ASU is not expected to have a material effect on our consolidated financial statements. In July 2015, the FASB issued ASU 2015-11, “Simplifying the Measurement of Inventory”, which require an entity to measure inventory at the lower of cost and net realizable value. The provisions of the ASU are effective for periods beginning after December 15, 2016. The adoption of this ASU is not expected to have a material effect on our consolidated financial statements. In September 2015, the FASB issued ASU 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments”, that eliminates the requirement to restate prior period financial statements for measurement adjustments. The new guidance requires that the cumulative impact of a measurement period adjustment be recognized in the reporting period in which the adjustment is identified. The provisions of the ASU are effective for periods beginning after December 15, 2015. The adoption of this ASU is not expected to have a material effect on our consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, “Leases”, that requires lessees to recognize a right-of-use asset and a lease liability for virtually all of their leases. The standard is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2018. The Company has not determined the effect that this accounting pronouncement will have on its financial statements.

Summary of Significant Accoun25

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2015
Changes in Warranty Liability	Changes in the Company’s warranty liability for the years ended December 31, 2015, 2014 and 2013 are as follows: (in thousands) Year Ended December 31, 2015 2014 2013 Warranty liability at January 1, $ 443 $ 597 $ 346 Warranty liability assumed in acquisitions — — 101 Revision of warranty estimate (100 ) (185 ) — Provisions for current year sales 233 196 348 Current year claims (153 ) (165 ) (198 ) Warranty liability at December 31, $ 423 $ 443 $ 597
Fair Value Remeasurement Based on Significant Inputs Not Observable, Level 3 Measurement	The Company determines the fair value of certain purchase price obligations on a recurring basis based on a probability-weighted discounted cash flow analysis and Monte Carlo simulation. The fair value remeasurement is based on significant inputs not observable in the market and thus represents a Level 3 measurement as defined in the fair value hierarchy. In each period, the Company reassesses its current estimates of performance relative to the stated targets and adjusts the liability to fair value. Any such adjustments are included in Acquisition, severance and transition costs, a component of Selling, general and administrative expense in the Consolidated Statement of Operations. Changes in the fair value of purchase price obligations for the year ended December 31, 2015 were as follows: (in thousands) 2015 Fair value, January 1 $ 12,355 Fair value of contingent consideration issued during the period 1,800 Fair value of acquisition liabilities paid during the period (6,566 ) Change in fair value 864 Fair value, December 31 $ 8,453
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques	The following table presents quantitative information about Level 3 fair value measurements as of December 31, 2015: (in thousands) Fair Value at Valuation Technique Unobservable Inputs Earnout liabilities $ 7,231 Income approach Discount rate – 15.5% Stock distribution price floor 1,222 Monte Carlo Volatility – 60% simulation Risk free rate – 1.2% Dividend yield – 0% Fair value, December 31, 2015 $ 8,453
Summary of Changes in Allowance for Doubtful Accounts	The following summarizes the changes in the allowance for doubtful accounts for the periods indicated. (in thousands) 2015 2014 2013 Allowance for doubtful accounts at January 1, $ 108 $ 210 $ 57 Additions 1,260 350 170 Write-offs (363 ) (452 ) (17 ) Allowance for doubtful accounts at December 31, $ 1,005 $ 108 $ 210
Estimated Useful Lives of Property and Equipment	The estimated useful lives of property and equipment are as follows: Estimated useful lives Machinery and equipment 3-7 years Furniture and fixtures 5-7 years Computers and software 3-7 years Motor vehicles 5 years Leasehold improvements Lesser of lease term or estimated useful life
Valuation Assumptions used in Computation of Stock Option Expense	For the year ended December 31, 2014, the Company computed expense for each group utilizing the following assumptions: Year Ended December 31, 2014 Expected volatility 94.2 % Weighted-average volatility 94.2 % Risk-free interest rate 1.64 % Expected dividend yield 0 % Expected life in years 3.5 – 8.6

Acquisitions (Tables)

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2015
Business Acquisition Pro Forma Information	The following unaudited supplemental pro forma information assumes the Energy Source acquisition and the 2014 acquisitions referred to above had been completed as of January 1, 2014 and is not indicative of the results of operations that would have been achieved had the transactions been consummated on such date or of results that might be achieved in the future. The pro forma effect of the E-Lighting acquisition was not significant. Year Ended December 31, (in thousands) 2015 2014 Revenues $ 138,524 $ 115,900 Operating loss $ (1,223 ) $ (8,931 ) Net loss $ (2,993 ) $ (4,063 )
Energy Source
Preliminary Values Assigned to Assets Acquired and Liabilities Assumed	The following amounts represent the determination of the fair value of identifiable assets acquired and liabilities assumed in the Energy Source acquisition: (in thousands) Tangible assets $ 5,379 Goodwill 21,276 Intangible assets 8,768 Assets acquired 35,423 Liabilities assumed 3,921 Purchase price $ 31,502
Value Lighting
Preliminary Values Assigned to Assets Acquired and Liabilities Assumed	The following amounts represent the determination of the fair value of identifiable assets acquired and liabilities assumed from the Value Lighting acquisition. The excess of the purchase price over the estimated fair value of the net tangible assets acquired was allocated to intangible assets of $20.0 million and goodwill of $18.6 million. (in thousands) Current Assets $ 16,260 Goodwill 18,635 Intangible Assets 19,951 Other assets 2,901 Assets acquired 57,747 Accounts payable and other liabilities 12,613 Deferred income tax liability 5,825 Liabilities assumed 18,438 Purchase price $ 39,309

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2015
Components of Inventories	Inventories, which are primarily purchased from third parties, consist of the following: (in thousands) December 31, 2015 2014 Raw materials $ 3,789 $ 3,895 Finished goods 20,292 11,447 24,081 15,342 Less provision for obsolescence (1,946 ) (1,669 ) Net inventories $ 22,135 $ 13,673
Changes In Inventory Reserves	(in thousands) Year Ended December 31, 2015 2014 2013 Inventory reserve at January 1, $ 1,669 $ 1,708 $ 1,669 Additions 1,087 179 1,644 Write offs (810 ) (218 ) (1,605 ) Inventory reserve at December 31, $ 1,946 $ 1,669 $ 1,708

Intangible Assets (Tables)

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2015
Intangible Assets Subject to Amortization	At December 31, 2015, the Company had the following intangible assets subject to amortization: (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Patents $ 268 $ (177 ) $ 91 Trade names 14,981 (2,884 ) 12,097 Customer relationships 28,901 (4,488 ) 24,413 Customer contracts and backlog 4,822 (4,481 ) 341 Technology 1,953 (248 ) 1,705 Favorable lease 334 (140 ) 194 Non-compete agreements 1,113 (369 ) 744 Product certification and licensing costs 72 (62 ) 10 $ 52,444 $ (12,849 ) $ 39,595 At December 31, 2014, the Company had the following intangible assets subject to amortization: (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Patents $ 268 $ (153 ) $ 115 Trade names 11,358 (1,280 ) 10,078 Customer relationships 24,455 (2,942 ) 21,513 Customer contracts and backlog 4,496 (4,038 ) 458 Technology 1,953 (196 ) 1,757 Favorable lease 334 (64 ) 270 Non-compete agreements 740 (151 ) 589 Product certification and licensing costs 61 (57 ) 4 $ 43,665 $ (8,881 ) $ 34,784
Amortization expense	Amortization expense during the years ended December 31, 2015, 2014 and 2013 is as follows: (in thousands) Estimated useful life 2015 2014 2013 Patents and trade names 12 to 17 years $ 939 $ 688 $ 388 Customer relationships 10 to 15 years 2,094 1,694 761 Customer contracts and backlog 1 to 3 years 443 2,425 1,613 Technology 10 years 195 129 67 Favorable Leases 10 years 77 61 3 Non-compete agreement 6 years 215 141 10 Product certification and licensing costs 3 years 5 11 17 Total $ 3,968 $ 5,149 $ 2,859
Estimated Annual Amortization Expense	Amortization expense for intangible assets for the next 5 years is estimated as follows: (in thousands) 2016 2017 2018 2019 2020 Patents $ 23 $ 23 $ 23 $ 22 $ — Trade names 1,135 1,135 1,135 1,135 1,080 Customer relationships 2,267 2,267 2,200 2,166 2,166 Customer contracts and backlog 246 56 39 — — Technology 195 195 195 195 195 Favorable Leases 43 22 22 22 22 Non-compete agreement 283 222 171 68 — Product certification and licensing costs 4 3 3 — — Total $ 4,196 $ 3,923 $ 3,788 $ 3,608 $ 3,463

Goodwill (Tables)

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2015
Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill for the years ended December 31, 2015 and 2014 are presented below: (in thousands) Balance, January 1, 2014 $ 21,498 Acquisitions 21,493 Balance, December 31, 2014 42,991 Acquisitions 21,276 Balance, December 31, 2015 $ 64,267 Accumulated Balances: Goodwill $ 66,663 Accumulated impairment losses (2,396 ) Balance, December 31, 2015 $ 64,267

Common Stock Transactions (Tabl

Common Stock Transactions (Tables)	12 Months Ended
	Dec. 31, 2015
Common Stock Reserved for Issuance	At December 31, 2015, the Company has reserved common stock for issuance in relation to the following: Employee stock options and restricted stock 2,752,020 Shares to be issued for acquisitions 2,929,669 Total reserved shares 5,681,689

Stock-Based Compensation Plans

Stock-Based Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2015
Summary of Non-Vested Shares	A summary of non-vested restricted shares follows: Number of Weighted Outstanding non-vested December 31, 2014 1,255,667 $ 2.38 Shares granted 1,103,500 1.33 Shares vested (666,500 ) 2.29 Shares forfeited (346,334 ) 2.03 Outstanding non-vested December 31, 2015 1,346,333 $ 1.66
Summary of Stock Option Activity	The following table summarizes option activity of the 2003 and 2013 Plans. Substantially all of the options are exercisable as of December 31, 2015: Number of Shares Outstanding Under Option Weighted Balance, December 31, 2014 414,380 $ 4.29 Options granted at market — — Options exercised — — Options forfeited or expired (99,546 ) 4.07 Balance, December 31, 2015 314,834 $ 4.36

Operating Leases (Tables)

Operating Leases (Tables)	12 Months Ended
	Dec. 31, 2015
Schedule of Rent Expense under Operating Leases	The following schedule shows the total rent expense under operating leases: (in thousands) Year Ended December 31, 2015 2014 2013 Rent expense $ 2,026 $ 953 $ 577 Less sublease rentals — — (47 ) Total rent expense $ 2,026 $ 953 $ 530
Future Minimum Payment Obligation for Operating Leases	The future minimum payment obligations as of December 31, 2015 for operating leases are as follows: (in thousands) 2016 $ 2,466 2017 2,313 2018 2,271 2019 1,709 2020 832 Thereafter 1,430 Total future payment obligations $ 11,021

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2015
Components of Deferred Tax Assets and Liabilities	Components of deferred tax assets (liabilities) are as follows: (in thousands) December 31, 2015 2014 Accounts receivable $ 430 $ 233 Inventories 1,324 1,847 Accrued expenses 749 818 Depreciation (97 ) (5 ) Intangible assets (9,843 ) (11,232 ) Stock options 1,410 1,339 Deferred revenue 3 22 Other 15 5 Net operating loss carryforwards 11,123 11,860 Net deferred tax asset 5,114 4,887 Valuation allowance (5,114 ) (4,887 ) $ — $ —
Reconciliation of Tax Computed at Statutory Rate to Income Tax Expenses	The following is a reconciliation of tax computed at the statutory federal rate to the income tax expense in the statements of operations for the years ended December 31, 2015, 2014 and 2013: December 31, (in thousands, except %) 2015 2014 2013 Amount % Amount % Amount % Tax benefit at statutory federal rate $ (810 ) (34.0 ) $ (3,988 ) (34.0 ) $ (5,719 ) (34.0 ) Deferred state tax benefit 5 0.2 (383 ) (3.3 ) (258 ) (1.5 ) Change in valuation allowance 371 16.2 4,982 42.5 (10,446 ) (62.1 ) Tax benefit of acquisition — — (6,550 ) (55.8 ) — — Adjustment to net operating loss carryforwards (482 ) (21.1 ) (120 ) (1.0 ) 13,828 82.2 Non-deductible expenses 1,060 45.0 160 1.4 2,595 15.4 Impact of rate change (144 ) (6.3 ) (651 ) (5.6 ) — — Income tax benefit $ — — $ (6,550 ) (55.8 ) $ — —

Foreign and Domestic Operatio34

Foreign and Domestic Operations (Tables)	12 Months Ended
	Dec. 31, 2015
Net Revenue by Geographical Location	Net revenues by geographic location, based on location of customers, were as follows: (in thousands) December 31, 2015 2014 2013 United States $ 129,328 $ 74,839 $ 25,243 Canada 257 1,839 574 Other 71 162 243 Total $ 129,656 $ 76,840 $ 26,060
Net Long-Lived Asses by Geographical Location	Net long-lived assets by geographic location were as follows: (in thousands) December 31, 2015 2014 2013 United States $ 40,749 $ 35,883 $ 18,489 Other 93 112 137 Total $ 40,842 $ 35,995 $ 18,626

Financings (Tables)

Financings (Tables)	12 Months Ended
	Dec. 31, 2015
Maturities of Long-Term Borrowings	Maturities of long-term borrowings for each of the next five years are as follows: (in thousands) 2016 10,360 2017 24,951 2018 2,066 2019 — 2020 —

Quarterly Results of Operatio36

Quarterly Results of Operations (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2015
Quarterly Information (Unaudited)	(in thousands, except per share data) First Second Third Fourth Fiscal year ended December 31, 2015: Revenues $ 20,330 $ 27,245 $ 37,733 $ 44,348 Gross profit 7,171 9,072 12,186 14,861 Net (loss) income (2,046 ) (1,488 ) (285 ) 1,437 Net (loss) income attributable to common stockholders (2,046 ) (1,488 ) (285 ) 1,437 Basic and diluted (loss) income per common share attributable to common stockholders (1) $ (0.01 ) $ (0.01 ) $ (0.00 ) $ 0.01 Fiscal year ended December 31, 2014: Revenues $ 4,952 $ 17,517 $ 26,877 $ 27,494 Gross profit 1,603 5,563 8,559 8,498 Net (loss) income (3,570 ) 2,410 (1,404 ) (2,616 ) Net (loss) income attributable to common stockholders (3,977 ) 1,100 (2,055 ) (7,913 ) Basic and diluted (loss) income per common share attributable to common stockholders (1) $ (0.04 ) $ 0.01 $ (0.02 ) $ (0.07 ) The 2015 and 2014 acquisitions are included in consolidated results of operations from their respective acquisition dates. (2) The quarterly earnings per share information is computed separately for each period. Therefore, the sum of such quarterly per share amounts may differ from the total for the year.

Summary of Significant Accoun37

Summary of Significant Accounting Policies - Additional Information (Detail)	Oct. 01, 2015Reporting_unit	Dec. 01, 2014shares	Dec. 31, 2015USD ($)	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Sep. 30, 2014USD ($)	Jun. 30, 2014USD ($)	Mar. 31, 2014USD ($)	Dec. 31, 2015USD ($)Segmentshares	Dec. 31, 2014USD ($)Segmentshares	Dec. 31, 2013USD ($)shares	Oct. 31, 2015USD ($)	Apr. 30, 2015USD ($)	Aug. 31, 2014USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of reportable segments | Segment											1	2
Working capital excluding cash and cash equivalent			$ 25,900,000				$ 18,800,000				$ 25,900,000	$ 18,800,000
Convertible stock, Conversion of preferred stock | shares		36,300,171
Line of credit facility, maximum borrowing amount														$ 30,000,000	$ 25,000,000	$ 25,000,000
Borrowing capacity			22,000,000								22,000,000
Guaranteed borrowing capacity															$ 5,000,000
Bank loan payable			2,600,000								2,600,000
Revenues realized			44,348,000	$ 37,733,000	$ 27,245,000	$ 20,330,000	27,494,000	$ 26,877,000	$ 17,517,000	$ 4,952,000	$ 129,656,000	76,840,000	$ 26,060,000
Unbilled contract receivable expected billing period											12 months
Revenue from sales taxes											$ 4,500,000	2,700,000	500,000
Maturity of temporary cash investments											3 months
Number of reporting units tested for impairment of goodwill | Reporting_unit	1
Advertisement Expenses											$ 300,000	$ 300,000	$ 300,000
Net deferred tax liabilities			6,600,000								$ 6,600,000
Share based compensation, number of options granted | shares											0		0
Business acquisition, number of shares to be issued | shares											2,929,669	8,035,826
Deemed distribution on exchange of preferred stock												$ 5,301,000
Minimum
Summary Of Significant Accounting Policies [Line Items]
Product warranty											1 year
Maximum
Summary Of Significant Accounting Policies [Line Items]
Product warranty											10 years
Contingent payment of stock issued for acquisitions of businesses			$ 6,500,000				$ 11,700,000				$ 6,500,000	$ 11,700,000

Changes in Warranty Liability (

Changes in Warranty Liability (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Product Warranty Liability [Line Items]
Warranty liability	$ 443	$ 597	$ 346
Warranty liability assumed in acquisitions			101
Revision of warranty estimate	(100)	(185)
Provisions for current year sales	233	196	348
Current year claims	(153)	(165)	(198)
Warranty liability	$ 423	$ 443	$ 597

Fair Value Remeasurement Based

Fair Value Remeasurement Based on Significant Inputs Not Observable, Level 3 Measurement (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value, beginning balance	$ 12,355
Fair value of contingent consideration issued during the period	1,800
Fair value of acquisition liabilities paid during the period	(6,566)
Change in fair value	864
Fair value, ending balance	$ 8,453

Quantitative Information About

Quantitative Information About Level 3 Fair Value Measurements (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	$ 8,453	$ 12,355
Earn Out Liability
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	$ 7,231
Valuation Technique	Income approach
Discount rate	15.50%
Stock Distribution
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	$ 1,222
Valuation Technique	Monte Carlo simulation
Volatility	60.00%
Risk-free interest rate	1.20%
Dividend yield	0.00%

Allowance for Bad Debts (Detail

Allowance for Bad Debts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts	$ 108	$ 210	$ 57
Additions	1,260	350	170
Write-offs	(363)	(452)	(17)
Allowance for doubtful accounts	$ 1,005	$ 108	$ 210

Estimated Useful Lives of Prope

Estimated Useful Lives of Property and Equipment (Detail)	12 Months Ended
	Dec. 31, 2015
Motor Vehicles
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Useful Life	5 years
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Leasehold improvements	Lesser of lease term or estimated useful life
Minimum | Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Useful Life	3 years
Minimum | Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Useful Life	5 years
Minimum | Computers And Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Useful Life	3 years
Maximum | Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Useful Life	7 years
Maximum | Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Useful Life	7 years
Maximum | Computers And Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, Useful Life	7 years

Valuation Assumptions Used in C

Valuation Assumptions Used in Computation of Stock Option Expense (Detail)	12 Months Ended
	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	94.20%
Weighted-average volatility	94.20%
Risk-free interest rate	1.64%
Expected dividend yield	0.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life in years	3 years 6 months
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life in years	8 years 7 months 6 days

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail) $ / shares in Units, $ in Thousands	Aug. 05, 2015USD ($)shares	Feb. 05, 2015USD ($)	Dec. 18, 2014USD ($)Installment$ / sharesshares	Apr. 17, 2014USD ($)Installmentshares	Mar. 08, 2013USD ($)	Dec. 31, 2015USD ($)shares	Dec. 31, 2014USD ($)shares	Dec. 31, 2013USD ($)	Sep. 01, 2015USD ($)	Mar. 31, 2015USD ($)shares
Business Acquisition [Line Items]
Business acquisition, number of shares issued | shares						2,929,669	8,035,826
Goodwill						$ 64,267	$ 42,991	$ 21,498
Common stock, issued | shares						159,645,000	129,714,000
Common Stock, Value						$ 160	$ 130
Contingent consideration, current						7,039	6,269
Gain on bargain purchase of business					$ 700			743
Amortization of customer backlog included from proforma results						3,968	5,149	2,859
Acquisition, severance, and transitions costs included from proforma results						1,950	2,488	$ 3,541
Income tax benefit included from proforma results							6,550
Revenue from the date of acquisition						16,300	46,200
Net income from the date of acquisition						2,900	1,600
Backlog
Business Acquisition [Line Items]
Amortization of customer backlog included from proforma results						400	$ 2,400
DPI Management
Business Acquisition [Line Items]
Business acquisition aggregate purchase consideration		$ 600
Business acquisition cash consideration payment		100
Inventory		$ 600
Business acquisition consideration paid									$ 150
DPI Management | Cash payable on March 1, 2016
Business Acquisition [Line Items]
Business acquisition consideration payable						150
DPI Management | Payable on September 1, 2016 in cash or common stock
Business Acquisition [Line Items]
Business acquisition consideration payable						200
Energy Source
Business Acquisition [Line Items]
Business acquisition aggregate purchase consideration	$ 31,500
Business acquisition cash consideration	10,000
Business acquisition, promissory notes issued	10,000
Business acquisition consideration payable	$ 1,800
Business acquisition, number of shares issued | shares	8,695,652
Business acquisition, number of shares issued value	$ 10,000
Estimated fair value of intangible assets	8,768
Goodwill	21,276
Liabilities assumed	3,921
Purchase price	31,502
Energy Source | Common Stock
Business Acquisition [Line Items]
Business acquisition, value of equity issued	$ 9,700
Value Lighting
Business Acquisition [Line Items]
Business acquisition aggregate purchase consideration				$ 39,300
Business acquisition cash consideration				10,600
Business acquisition consideration payable				$ 7,800
Business acquisition, number of shares issued | shares				8,468,192
Business acquisition, number of Installments | Installment				4
Estimated fair value of intangible assets				$ 19,951
Goodwill				18,635
Liabilities assumed				18,438
Purchase price				39,309
Business acquisition, common stock issuable installment value				20,900
Business acquisition, contingent consideration payable in cash or common stock, maximum				$ 11,000
Common stock, issued | shares										4,900,000
Common Stock, Value										$ 5,500
Contingent consideration, current						$ 5,500
All Around
Business Acquisition [Line Items]
Business acquisition aggregate purchase consideration			$ 5,000
Business acquisition cash consideration			900
Business acquisition consideration payable			300
All Around | Unregistered Restricted Common Stock
Business Acquisition [Line Items]
Business acquisition, value of equity issued			$ 1,800
Business acquisition, number of shares issued | shares			1,600,000
Business acquisition, number of Installments | Installment			11
Restricted common stock, issuance commencement date			2015-06
Acquisition floor price per share | $ / shares			$ 2
Issuance of unregistered restricted stock, expected consideration			$ 3,200
Tangible assets			1,700
Estimated fair value of intangible assets			2,200
Goodwill			2,800
Liabilities assumed			1,700
Purchase price			5,000
All Around | Unregistered Restricted Common Stock | Preliminary Value
Business Acquisition [Line Items]
Business acquisition floor value of equity issued			$ 1,900

Preliminary Values Assigned to

Preliminary Values Assigned to Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Aug. 05, 2015	Dec. 31, 2014	Apr. 17, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Goodwill	$ 64,267		$ 42,991		$ 21,498
Energy Source
Business Acquisition [Line Items]
Tangible assets		$ 5,379
Goodwill		21,276
Intangible Assets		8,768
Assets acquired		35,423
Liabilities assumed		3,921
Purchase price		$ 31,502
Value Lighting
Business Acquisition [Line Items]
Current Assets				$ 16,260
Goodwill				18,635
Intangible Assets				19,951
Other assets				2,901
Assets acquired				57,747
Accounts payable and other liabilities				12,613
Deferred income tax liability				5,825
Liabilities assumed				18,438
Purchase price				$ 39,309

Business Acquisition Pro Forma

Business Acquisition Pro Forma Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition, Pro Forma Information [Line Items]
Revenues	$ 138,524	$ 115,900
Operating loss	(1,223)	(8,931)
Net loss	$ (2,993)	$ (4,063)

Components of Inventories (Deta

Components of Inventories (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Inventory [Line Items]
Raw materials	$ 3,789	$ 3,895
Finished goods	20,292	11,447
Inventory, Gross, Total	24,081	15,342
Less provision for obsolescence	(1,946)	(1,669)	$ (1,708)	$ (1,669)
Net inventories	$ 22,135	$ 13,673

Changes in Inventory Reserves (

Changes in Inventory Reserves (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Inventory [Line Items]
Inventory reserve at January 1,	$ 1,669	$ 1,708	$ 1,669
Additions	1,087	179	1,644
Write offs	(810)	(218)	(1,605)
Inventory reserve at December 31,	$ 1,946	$ 1,669	$ 1,708

Intangible Assets Subject to Am

Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 52,444	$ 43,665
Accumulated Amortization	(12,849)	(8,881)
Net Carrying Amount	39,595	34,784
Customer Contracts and back log
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	4,822
Accumulated Amortization	(4,481)
Net Carrying Amount	341
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	28,901	24,455
Accumulated Amortization	(4,488)	(2,942)
Net Carrying Amount	24,413	21,513
Favorable lease
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	334	334
Accumulated Amortization	(140)	(64)
Net Carrying Amount	194	270
Non- compete agreement
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,113	740
Accumulated Amortization	(369)	(151)
Net Carrying Amount	744	589
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	268	268
Accumulated Amortization	(177)	(153)
Net Carrying Amount	91	115
Product certification
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	72	61
Accumulated Amortization	(62)	(57)
Net Carrying Amount	10	4
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,953	1,953
Accumulated Amortization	(248)	(196)
Net Carrying Amount	1,705	1,757
Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	14,981	11,358
Accumulated Amortization	(2,884)	(1,280)
Net Carrying Amount	$ 12,097	10,078
Customer Contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		4,496
Accumulated Amortization		(4,038)
Net Carrying Amount		$ 458

Amortization expense (Detail)

Amortization expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 3,968	$ 5,149	$ 2,859
Patents And Trade Names
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 939	688	388
Patents And Trade Names | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	12 years
Patents And Trade Names | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	17 years
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 2,094	1,694	761
Customer Relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	10 years
Customer Relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	15 years
Customer Contracts and back log
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 443	2,425	1,613
Customer Contracts and back log | Minimum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	1 year
Customer Contracts and back log | Maximum
Finite-Lived Intangible Assets [Line Items]
Intangible assets, estimated useful life	3 years
Technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 195	129	67
Intangible assets, estimated useful life	10 years
Favorable lease
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 77	61	3
Intangible assets, estimated useful life	10 years
Non- compete agreement
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 215	141	10
Intangible assets, estimated useful life	6 years
Product certification
Finite-Lived Intangible Assets [Line Items]
Intangible assets, amortization expense	$ 5	$ 11	$ 17
Intangible assets, estimated useful life	3 years

Estimated Annual Amortization E

Estimated Annual Amortization Expense (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Estimated Amortization Expense [Line Items]
2,016	$ 4,196
2,017	3,923
2,018	3,788
2,019	3,608
2,020	3,463
Patents
Estimated Amortization Expense [Line Items]
2,016	23
2,017	23
2,018	23
2,019	22
Trade Names
Estimated Amortization Expense [Line Items]
2,016	1,135
2,017	1,135
2,018	1,135
2,019	1,135
2,020	1,080
Customer Relationships
Estimated Amortization Expense [Line Items]
2,016	2,267
2,017	2,267
2,018	2,200
2,019	2,166
2,020	2,166
Customer Contracts
Estimated Amortization Expense [Line Items]
2,016	246
2,017	56
2,018	39
Technology
Estimated Amortization Expense [Line Items]
2,016	195
2,017	195
2,018	195
2,019	195
2,020	195
Favorable lease
Estimated Amortization Expense [Line Items]
2,016	43
2,017	22
2,018	22
2,019	22
2,020	22
Non- compete agreement
Estimated Amortization Expense [Line Items]
2,016	283
2,017	222
2,018	171
2,019	68
Product certification
Estimated Amortization Expense [Line Items]
2,016	4
2,017	3
2,018	$ 3

Changes in Carrying Amount of G

Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 42,991	$ 21,498
Business acquisition	21,276	21,493
Goodwill, Ending Balance	64,267	42,991
Goodwill, Gross			$ 66,663
Accumulated impairment losses			(2,396)
Goodwill	$ 42,991	$ 21,498	$ 64,267

Common Stock Transactions - Add

Common Stock Transactions - Additional Information (Detail)	Feb. 16, 2016	Aug. 05, 2015USD ($)shares	May. 11, 2015shares	Dec. 01, 2014USD ($)$ / sharesshares	Apr. 21, 2014shares	Apr. 09, 2013shares	Sep. 09, 2005$ / sharesshares	Dec. 31, 2015USD ($)shares	Dec. 31, 2014USD ($)shares	Dec. 31, 2013USD ($)shares
Schedule of Capitalization, Equity [Line Items]
Common stock, outstanding								159,645,000	129,714,000
Business acquisition, number of shares issued								2,929,669	8,035,826
Common stock, shares authorized			200,000,000					200,000,000	200,000,000
Common stock, shares issued				8,000,000
Offering price of common stock | $ / shares				$ 1.25
Issuance of common stock, net of issuance fees | $				$ 8,600,000				$ 8,960,000	$ 8,614,000	$ 4,950,000
Convertible stock, Conversion of preferred stock				36,300,171
Preferred stock, shares outstanding								0	0
Subsequent Event
Schedule of Capitalization, Equity [Line Items]
Reverse stock split	0.1
Maximum
Schedule of Capitalization, Equity [Line Items]
Reverse stock split			0.25
Minimum
Schedule of Capitalization, Equity [Line Items]
Reverse stock split			0.1429
Scenario, Previously Reported
Schedule of Capitalization, Equity [Line Items]
Common stock, shares authorized			150,000,000
Kingstone Warrants
Schedule of Capitalization, Equity [Line Items]
Warrants expiration period							10 years
Warrants issued							289,187
Warrants exercise price | $ / shares							$ 4.30
Energy Source
Schedule of Capitalization, Equity [Line Items]
Issuance of common stock for acquisition | $								$ 9,702,000
Business acquisition, number of shares issued		8,695,652
Business acquisition, number of shares issued value | $		$ 10,000,000
Common Stock
Schedule of Capitalization, Equity [Line Items]
Common stock, outstanding								159,600,000
Common stock, shares issued								8,696,000	8,000,000	4,348,000
Common Stock | Energy Source
Schedule of Capitalization, Equity [Line Items]
Issuance of common stock for acquisition (in shares)		8,800,000						8,820,000
Issuance of common stock for acquisition | $		$ 9,700,000						$ 9,000
Business acquisition, number of shares issued value | $		$ 9,500,000
RVL One Limited Liability Company
Schedule of Capitalization, Equity [Line Items]
Common stock, outstanding								84,200,000
Common stock share outstanding owned								52.80%
Issuance of common stock, net of issuance fees | $										$ 192,000
Aston Capital Limited Liability Company | Restricted Stock
Schedule of Capitalization, Equity [Line Items]
Restricted common stock agreed to be issued for services						500,000
Restricted common stock agreed to be issued for services, vesting period						3 years
Restricted common stock agreed to be issued for services, vesting date						Sep. 25, 2013
Number of shares authorized for grant					300,000
Stock awards vesting periods					3 years

Common Stock for Issuance Reser

Common Stock for Issuance Reserve (Detail)	Dec. 31, 2015shares
Schedule of Capitalization, Equity [Line Items]
Total reserved shares	5,681,689
Shares to be Issued for Acquisitions
Schedule of Capitalization, Equity [Line Items]
Total reserved shares	2,929,669
Employee Stock Options and Restricted Stock
Schedule of Capitalization, Equity [Line Items]
Total reserved shares	2,752,020

Preferred Stock - Additional In

Preferred Stock - Additional Information (Detail) - USD ($)

Dec. 01, 2014

Jun. 30, 2014

Aug. 22, 2013

May. 15, 2013

Feb. 21, 2013

Dec. 20, 2012

Mar. 31, 2013

Dec. 31, 2015

Dec. 31, 2014

Dec. 31, 2013

May. 14, 2013

Dec. 31, 2012

Preferred Stock [Line Items]

Preferred stock authorized to issue

5,000,000

Preferred stock, shares outstanding

0

0

Accrual of dividends on convertible preferred stock

$ 1,445,000

$ 1,360,000

Business acquisition, number of shares issued

2,929,669

8,035,826

Convertible stock, Conversion of convertible securities

36,300,171

Change in fair value of embedded derivative

(6,990,000)

Embedded derivative, fair value of embedded derivative liability

$ 8,600,000

Debt exchanged with stock, amount

$ 3,736,000

Series C

Preferred Stock [Line Items]

Preferred stock, issued

10,000

Proceeds from issuance of convertible preferred stock

$ 10,000,000

Series C Convertible Preferred Stock

Preferred Stock [Line Items]

Preferred stock authorized to issue

25,000

Preferred stock , Par value

$ 0.001

Preferred stock, cumulative dividends rate

10.00%

Preferred stock, stated value for cumulative dividends

$ 1,000

Accrual of dividends on convertible preferred stock

1,014,000

Series D Convertible Preferred Stock

Preferred Stock [Line Items]

Preferred stock authorized to issue

13,000

Preferred stock , Par value

$ 0.001

Preferred stock issued due to investment agreement

11,177

Business acquisition, number of shares issued

738

Liquidation preference per share

$ 100

Convertible stock, Conversion of preferred stock

11,915

Convertible stock, Conversion of convertible securities

1,712,167

Conversion price

$ 0.6959

Series E Redeemable Convertible Preferred Stock

Preferred Stock [Line Items]

Convertible redeemable preferred stock, shares authorized

10,000

Convertible redeemable preferred stock, par value

$ 0.001

Series E Convertible Preferred Stock

Preferred Stock [Line Items]

Preferred stock, issued

5,000

Proceeds from issuance of convertible preferred stock

$ 5,000,000

Preferred stock, cumulative dividends rate

5.00%

Accrual of dividends on convertible preferred stock

218,000

Series F Redeemable Convertible Preferred Stock

Preferred Stock [Line Items]

Preferred stock, issued

5,000

Proceeds from issuance of convertible preferred stock

$ 5,000,000

Convertible redeemable preferred stock, shares authorized

10,000

Convertible redeemable preferred stock, par value

$ 0.001

Series G Redeemable Convertible Preferred Stock

Preferred Stock [Line Items]

Preferred stock authorized to issue

18,000

Preferred stock , Par value

$ 0.001

Preferred stock, issued

18,000

Convertible stock, Conversion of convertible securities

5,404

Conversion price

$ 2.3

Series G Redeemable Convertible Preferred Stock | Dated April 17, 2014

Preferred Stock [Line Items]

Debt exchanged with stock, shares

10,956,000

Debt exchanged with stock, amount

$ 10,956,000

Series G Redeemable Convertible Preferred Stock | Dated February 25, 2014

Preferred Stock [Line Items]

Debt exchanged with stock, shares

1,640

Debt exchanged with stock, amount

$ 1,640,085

Series F Convertible Preferred Stock

Preferred Stock [Line Items]

Preferred stock, cumulative dividends rate

7.00%

Accrual of dividends on convertible preferred stock

$ 129,000

Exchange agreement, shares received

5,000

Series G Convertible Preferred Stock

Preferred Stock [Line Items]

Preferred stock, cumulative dividends rate

9.00%

Stock-Based Compensation Plan56

Stock-Based Compensation Plans - Additional Information (Detail) - USD ($)	May. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance		5,681,689
Common stock, issued		159,645,000	129,714,000
Unrecognized compensation expense for restricted stock		$ 1,425,000
Unrecognized compensation expense for restricted stock amortized period		3 years
Total intrinsic value				$ 95,000
Number of options exercised		0	0
Intrinsic value of outstanding exercisable options		$ 0
Stock-based compensation expenses		2,719,000	$ 1,711,000	809,000
Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expenses		2,422,000	1,751,000	303,000
Non Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (benefit)		297,000	(40,000)	$ 506,000
Bonus and Commissions
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expenses		$ 1,123,000	$ 941,000
2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance		2,462,186
Common stock, issued	6,000,000
Shares awarded for incentive compensation		831,150
2013 Plan | Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options awarded, cumulative grants under the Plan		25,000
2013 Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares, cumulative awards under the Plan		2,706,664
2013 Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options exercise price, percentage	100.00%
2013 Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Expiration Date	10 years
Two Thousand Three Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock reserved for future issuance		289,834
Percentage of option price		100.00%
Stock awards vesting periods		3 years
Shares of common stock vested and exercisable		289,834
Performance options expired			7,640	153,600
Two Thousand Three Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant Expiration Date		10 years
Employee Restricted Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average term		3 years

Non-Vested Options (Detail)

Non-Vested Options (Detail) - Nonvested Shares	12 Months Ended
	Dec. 31, 2015$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares
Number of Restricted Shares, Beginning Balance | shares	1,255,667
Number of Restricted Shares, Shares Granted | shares	1,103,500
Number of Restricted Shares, Shares Vested | shares	(666,500)
Number of Restricted Shares, Shares Forfeited | shares	(346,334)
Number of Restricted Shares, Ending Balance | shares	1,346,333
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value
Weighted Average Grant Date Fair Value Per Share, Beginning Balance | $ / shares	$ 2.38
Weighted Average Grant Date Fair Value Per Share, Shares Granted | $ / shares	1.33
Weighted Average Grant Date Fair Value Per Share, Shares Vested | $ / shares	2.29
Weighted Average Grant Date Fair Value Per Share, Shares Forfeited | $ / shares	2.03
Weighted Average Grant Date Fair Value Per Share, Ending Balance | $ / shares	$ 1.66

Summary of Stock Option Activit

Summary of Stock Option Activity (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares Outstanding Under Option, Options granted at market	0
Number of Shares Outstanding Under Option, Beginning Balance		414,380
Number of Shares Outstanding Under Option, Options exercised	0	0
Weighted Average Exercise Price, Beginning Balance		$ 4.29
Number of Shares Outstanding Under Option, Options forfeited or expired	(99,546)
Number of Shares Outstanding Under Option, Ending Balance	314,834
Weighted Average Exercise Price , Options granted at market	$ 0
Weighted Average Exercise Price, Options exercised	0
Weighted Average Exercise Price, Options forfeited or expired	4.07
Weighted Average Exercise Price, Ending Balance	$ 4.36

Rent Expense under Operating Le

Rent Expense under Operating Leases (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Rent Expense [Line Items]
Rent expense	$ 2,026	$ 953	$ 577
Less sublease rentals			(47)
Total rent expense	$ 2,026	$ 953	$ 530

Future Minimum Payment Obligati

Future Minimum Payment Obligations for Operating Leases (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Leases Future Minimum Payments [Line Items]
2,016	$ 2,466
2,017	2,313
2,018	2,271
2,019	1,709
2,020	832
Thereafter	1,430
Total future payment obligations	$ 11,021

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2015USD ($)
Income Taxes [Line Items]
Net deferred tax liabilities	$ 6.6
Net operating loss carryforwards expiration period	Expire between 2020 and 2035
Federal
Income Taxes [Line Items]
Net operating loss carryforwards	$ 24.9
State and Local Jurisdiction
Income Taxes [Line Items]
Net operating loss carryforwards	35.6
Value Lighting
Income Taxes [Line Items]
Net deferred tax liabilities	$ 6.6

Components of Deferred Tax Asse

Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Schedule of Deferred Tax Assets and Liabilities [Line Items]
Accounts receivable	$ 430	$ 233
Inventories	1,324	1,847
Accrued expenses	749	818
Depreciation	(97)	(5)
Intangible assets	(9,843)	(11,232)
Stock options	1,410	1,339
Deferred revenue	3	22
Other	15	5
Net operating loss carryforwards	11,123	11,860
Deferred Tax Assets, Gross, Total	5,114	4,887
Valuation allowance	(5,114)	(4,887)
Deferred Tax Assets, Net, Total	$ 0	$ 0

Reconciliation of Tax Computed

Reconciliation of Tax Computed at Statutory Federal Rate to Income Tax Expense in Statements of Operations (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Schedule of Effective Tax Rate Reconciliation [Line Items]
Tax benefit at statutory federal rate	$ (810)	$ (3,988)	$ (5,719)
Deferred state tax benefit	5	(383)	(258)
Change in valuation allowance	371	4,982	(10,446)
Tax benefit of acquisition		(6,550)
Adjustment to net operating loss carryforwards	(482)	(120)	13,828
Non-deductible expenses	1,060	160	$ 2,595
Impact of rate change	$ (144)	(651)
Income tax benefit		$ (6,550)
Tax benefit at statutory federal rate	(34.00%)	(34.00%)	(34.00%)
Deferred state tax benefit	0.20%	(3.30%)	(1.50%)
Change in valuation allowance	16.20%	42.50%	(62.10%)
Tax benefit of acquisition		(55.80%)
Adjustment to net operating loss carryforwards	(21.10%)	(1.00%)	82.20%
Non-deductible expenses	45.00%	1.40%	15.40%
Impact of rate change	(6.30%)	(5.60%)
Income tax benefit		(55.80%)

Net Revenues by Geographic Loca

Net Revenues by Geographic Location (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenue, Major Customer [Line Items]
Revenue	$ 44,348	$ 37,733	$ 27,245	$ 20,330	$ 27,494	$ 26,877	$ 17,517	$ 4,952	$ 129,656	$ 76,840	$ 26,060
United States
Revenue, Major Customer [Line Items]
Revenue									129,328	74,839	25,243
Canada
Revenue, Major Customer [Line Items]
Revenue									257	1,839	574
Other
Revenue, Major Customer [Line Items]
Revenue									$ 71	$ 162	$ 243

Net Long Lived Assets by Geogra

Net Long Lived Assets by Geographic Location (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Non Current Assets	$ 40,842	$ 35,995	$ 18,626
United States
Segment Reporting Information [Line Items]
Non Current Assets	40,749	35,883	18,489
Other
Segment Reporting Information [Line Items]
Non Current Assets	$ 93	$ 112	$ 137

Benefit Plans - Additional Info

Benefit Plans - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Benefit plan related expenses	$ 166,000	$ 120,000	$ 39,000

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail)

Dec. 01, 2014USD ($)

Apr. 21, 2014shares

Apr. 09, 2013shares

Aug. 31, 2015USD ($)

Aug. 31, 2014USD ($)

Jun. 30, 2014USD ($)

Apr. 30, 2014USD ($)

Feb. 28, 2014USD ($)

Dec. 31, 2015USD ($)Agreementshares

Dec. 31, 2014USD ($)shares

Dec. 31, 2013USD ($)shares

Oct. 31, 2015USD ($)

Apr. 30, 2015USD ($)

Related Party Transaction [Line Items]

Notes payable, current

$ 10,360,000

$ 360,000

Guaranteed borrowing capacity

$ 5,000,000

Line of credit facility, maximum borrowing amount

$ 25,000,000

$ 30,000,000

$ 25,000,000

Debt instrument maturity date

Aug. 20, 2017

Accrued interest

300,000

Interest Expenses

1,100,000

Proceeds from issuance of common stock

$ 8,600,000

$ 8,960,000

$ 8,614,000

$ 4,950,000

Common stock, issued | shares

159,645,000

129,714,000

Promissory Notes | Energy Source

Related Party Transaction [Line Items]

Notes payable, current

$ 10,000,000

Debt instrument maturity date

Jul. 20, 2016

RVL One Limited Liability Company

Related Party Transaction [Line Items]

Number of separate investment agreements | Agreement

4

Proceeds from issuance of convertible preferred stock

$ 26,000,000

Proceeds from issuance of common stock

$ 192,000

Common stock, issued | shares

75,000

Related party transaction costs incurred

$ 33,000

RVL One Limited Liability Company | Series G Redeemable Convertible Preferred Stock

Related Party Transaction [Line Items]

Proceeds from issuance of convertible preferred stock

$ 12,500,000

RVL One Limited Liability Company | RVL Note

Related Party Transaction [Line Items]

Debt instrument amount

$ 10,800,000

Debt instrument maturity date

Apr. 1, 2015

Interest rate of debt

9.00%

Debt instrument converted in to equity

$ 10,800,000

Aston Capital Limited Liability Company

Related Party Transaction [Line Items]

Loans Receivable, Commercial, Trade Financing

$ 9,900,000

Monthly payment for underlying lease

$ 26,537

Related party transaction costs incurred

300,000

$ 700,000

Aston Capital Limited Liability Company | Promissory Notes

Related Party Transaction [Line Items]

Debt instrument amount

$ 2,700,000

Debt instrument maturity date

Apr. 1, 2017

Aston Capital Limited Liability Company | February Note

Related Party Transaction [Line Items]

Debt instrument amount

1,900,000

$ 1,000,000

$ 3,500,000

Debt instrument maturity date

Apr. 1, 2015

Interest rate of debt

9.00%

Debt instrument converted in to equity

$ 1,600,000

Aston Capital Limited Liability Company | Restricted Stock

Related Party Transaction [Line Items]

Restricted common stock agreed to be issued for services | shares

500,000

Restricted common stock agreed to be issued for services, vesting period

3 years

Restricted common stock agreed to be issued for services, vesting date

Sep. 25, 2013

Number of shares authorized for grant | shares

300,000

Stock awards vesting periods

3 years

Financings - Additional Informa

Financings - Additional Information (Detail) - USD ($)	1 Months Ended		12 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Dec. 31, 2015	Oct. 31, 2015	Apr. 30, 2015	Dec. 31, 2014
Financing Activities and Borrowing Arrangements [Line Items]
Notes payable, current			$ 10,360,000			$ 360,000
Debt instrument maturity date		Aug. 20, 2017
Line of credit facility, maximum borrowing amount		$ 25,000,000		$ 30,000,000	$ 25,000,000
Debt instrument agreement period		3 years
Guaranteed borrowing capacity					$ 5,000,000
Bank loan payable			2,600,000
Borrowing capacity			$ 22,000,000
Weighted average annual interest rate			3.65%
Minimum fixed charges ratio			110.00%
Senior debt EBITDA ratio			350.00%
Value Lighting
Financing Activities and Borrowing Arrangements [Line Items]
Debt refinance amount			$ 3,700,000
Notes payable, maturity			2018-11
Balloon payment			$ 1,400,000
Energy Source | Promissory Notes
Financing Activities and Borrowing Arrangements [Line Items]
Notes payable, current	$ 10,000,000
Debt instrument, interest rate	5.00%
Debt instrument maturity date	Jul. 20, 2016

Maturities of Long-Term Borrowi

Maturities of Long-Term Borrowings (Detail) $ in Thousands	Dec. 31, 2015USD ($)
Long Term Debt Maturities Repayments Of Principal [Line Items]
2,016	$ 10,360
2,017	24,951
2,018	2,066
2,019	0
2,020	$ 0

Quarterly Information (Unaudite

Quarterly Information (Unaudited) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2015		Sep. 30, 2015		Jun. 30, 2015		Mar. 31, 2015		Dec. 31, 2014		Sep. 30, 2014		Jun. 30, 2014		Mar. 31, 2014		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information [Line Items]
Revenues	$ 44,348		$ 37,733		$ 27,245		$ 20,330		$ 27,494		$ 26,877		$ 17,517		$ 4,952		$ 129,656	$ 76,840	$ 26,060
Gross profit	14,861		12,186		9,072		7,171		8,498		8,559		5,563		1,603		43,290	24,223	9,952
Net (loss) income	1,437		(285)		(1,488)		(2,046)		(2,616)		(1,404)		2,410		(3,570)		(2,382)	(5,180)	(16,821)
Net (loss) income attributable to common stockholders	$ 1,437		$ (285)		$ (1,488)		$ (2,046)		$ (7,913)		$ (2,055)		$ 1,100		$ (3,977)		$ (2,382)	$ (12,845)	$ (20,471)
Basic and diluted (loss) income per common share attributable to common stockholders	$ 0.01	[1]	$ 0	[1]	$ (0.01)	[1]	$ (0.01)	[1]	$ (0.07)	[1]	$ (0.02)	[1]	$ 0.01	[1]	$ (0.04)	[1]	$ (0.02)	$ (0.14)	$ (0.26)
[1]	The quarterly earnings per share information is computed separately for each period. Therefore, the sum of such quarterly per share amounts may differ from the total for the year.