Quarterly report pursuant to Section 13 or 15(d)

Acquisitions - Additional Information (Detail)

Acquisitions - Additional Information (Detail) (USD $)	3 Months Ended	0 Months Ended
Acquisitions - Additional Information (Detail) (USD $)	Mar. 31, 2015	Apr. 17, 2014 Installment	Feb. 05, 2015	Dec. 18, 2014	Dec. 31, 2014
Business Acquisition [Line Items]
Business acquisition, number of shares issued	8,035,826
Common stock shares issued	135,260,000us-gaap_CommonStockSharesIssued				135,260,000us-gaap_CommonStockSharesIssued
Common Stock, Value	$ 135,000us-gaap_CommonStockValue				$ 130,000us-gaap_CommonStockValue
Goodwill	42,991,000us-gaap_Goodwill				42,991,000us-gaap_Goodwill
Revenue from acquisition	13,300,000
Operating loss from acquisition	(1,100,000)
Net loss from acquisition	(1,100,000)
Value Lighting
Business Acquisition [Line Items]
Business acquisition cash Consideration		10,600,000
Business acquisition aggregate purchase consideration		39,300,000
Business acquisition, number of shares issued		8,468,192
Business acquisition, number of Installments		4
Business acquisition, common stock issuable installment value		20,900,000
Business acquisition, contingent consideration payable in cash or common stock, maximum		11,000,000
Business acquisition consideration payable		7,800,000
Business acquisition, preliminarily reduced purchase price		100,000
Common stock shares issued	4,900,000
Common Stock, Value	5,500,000
Inventory		7,505,000
Goodwill		18,635,000
Liabilities assumed		18,438,000
Purchase price		39,309,000
DPI Management
Business Acquisition [Line Items]
Business acquisition aggregate purchase consideration			600,000
Business acquisition cash consideration			100,000
Business acquisition, number of Installments			4 months
Inventory			600,000
DPI Management \| Cash payable in four installments through March 1, 2016
Business Acquisition [Line Items]
Business acquisition consideration payable			300,000
DPI Management \| Payable on September 1, 2016 in cash or common stock
Business Acquisition [Line Items]
Business acquisition consideration payable			200,000
All Around
Business Acquisition [Line Items]
Business acquisition cash Consideration				900,000
Business acquisition aggregate purchase consideration				5,000,000
Business acquisition consideration payable				300,000
All Around \| Unregistered Restricted Common Stock
Business Acquisition [Line Items]
Business acquisition, number of shares issued				1,600,000
Business acquisition, number of Installments				11
Business acquisition, value of equity issued				1,800,000
Restricted common stock, issuance commencement date				2015-06
Acquisition share price				$ 2.00
Issuance of unregistered restricted stock, expected consideration				3,200,000
Tangible assets				1,700,000
Identifiable intangible assets				2,200,000
Goodwill				2,800,000
Liabilities assumed				1,700,000
Purchase price				5,000,000
All Around \| Unregistered Restricted Common Stock \| Preliminary Value
Business Acquisition [Line Items]
Business acquisition, value of equity issued				$ 1,900,000