Quarterly report pursuant to sections 13 or 15(d)

Business Acquisition (Details)

Business Acquisition (Details) (USD $)	3 Months Ended		9 Months Ended		11 Months Ended	9 Months Ended						3 Months Ended	9 Months Ended
Business Acquisition (Details) (USD $)	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2012 Vehicles [Member]	Sep. 30, 2012 Lab equipment [Member]	Sep. 30, 2012 Office furniture and equipment [Member]	Sep. 30, 2012 Promissory note [Member]	Oct. 31, 2011 Promissory note [Member]	Oct. 31, 2011 SEC Radcon Alliance, LLC [Member]	Sep. 30, 2012 Safety and Ecology Holdings Corporation [Member]	Sep. 30, 2012 Safety and Ecology Holdings Corporation [Member]	Oct. 31, 2011 Safety and Ecology Holdings Corporation [Member]	Sep. 30, 2012 Safety and Ecology Holdings Corporation [Member] Maximum [Member]
Business Acquisition [Line Items]
Percentage of voting interests acquired (in hundredths)											75.00%
Total consideration	$ 17,885,000		$ 17,885,000		$ 17,885,000									$ 17,885,000
Cash consideration														14,885,000
Common Stock consideration														1,000,000
Promissory note										2,500,000
Annual rate of interest (in hundredths)										6.00%
Number of monthly installments										36
Prepaid principal amount of the Note									500,000
Number of days from acquisition for repayment of promissory notes			10 days
Number of days for trading of common stock to determine average closing price			30 days
Voting power of management investors (in hundredths)													19.90%
Escrow deposit														2,000,000
Escrow Deposit received													1,500,000
Claim for remaining balance in escrow													500,000
Restricted shares of our Common Stock (in shares)													813,007
Total consideration												1,000,000	1,000,000
Price of restricted common share (in dollars per share)												$ 1.23	$ 1.23
Fixed cost contract agreement															7,000,000
Purchase Agreement Liability at Closing	15,000,000		15,000,000		15,000,000
Actual Purchase Agreement Liability at Closing	24,000,000		24,000,000		24,000,000
Indemnification claims relating to breaches												3,000,000	3,000,000
Claims relating to fundamental warranty												24,500,000	24,500,000
Indemnification claims relating to breaches under the purchase agreement												4,900,000	4,900,000
Revenues	29,128,000	32,787,000	101,180,000	85,315,000								11,307,000	47,235,000
Net loss	(425,000)	6,011,000	(2,766,000)	8,210,000								831,000	2,907,000
Preliminary purchase price allocation of the fair values of the assets acquired and liabilities assumed [Abstract]
Current assets	22,458,000		22,458,000		22,458,000
Property, plant and equipment	2,135,000		2,135,000		2,135,000	583,000	1,235,000	317,000
Intangible assets	4,204,000		4,204,000		4,204,000
Goodwill	13,119,000		13,119,000		13,119,000
Total assets acquired	41,916,000		41,916,000		41,916,000
Current liabilities	(15,860,000)		(15,860,000)		(15,860,000)
Customer contracts	(5,710,000)		(5,710,000)		(5,710,000)
Non-current liabilities	(2,091,000)		(2,091,000)		(2,091,000)
Total liabilities acquired	(23,661,000)		(23,661,000)		(23,661,000)
Non-controlling interest	(370,000)		(370,000)		(370,000)
Total consideration	17,885,000		17,885,000		17,885,000									17,885,000
Property, Plant and Equipment [Line Items]
Total tangible assets	2,135,000		2,135,000		2,135,000	583,000	1,235,000	317,000
Weighted Average Estimated Useful Life						5 years	7 years	4 years
Acquisition-related costs			69,000		680,000
Pro forma financial information [Abstract]
Net revenues		52,507,000		156,919,000
Net income from continuing operations		$ 5,223,000		$ 6,424,000
Net income per share from continuing operations- basic		$ 0.09		$ 0.12
Net income per share from continuing operations- diluted		$ 0.09		$ 0.12