Quarterly report pursuant to sections 13 or 15(d)

Goodwill and Other Intangible Assets (Details)

Goodwill and Other Intangible Assets (Details) (USD $)	3 Months Ended				9 Months Ended
Goodwill and Other Intangible Assets (Details) (USD $)	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Sep. 30, 2012	Sep. 30, 2013 Segment	Sep. 30, 2012	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,304,000				$ 5,304,000		$ 5,258,000
Accumulated Amortization	(2,138,000)				(2,138,000)		(1,648,000)
Net Carrying Amount	3,166,000				3,166,000		3,610,000
Finite lived intangible assets future amortization expense [Abstract]
2013 (remaining)	496,000				496,000
2014	585,000				585,000
2015	470,000				470,000
2016	369,000				369,000
2017	355,000				355,000
Total	2,275,000				2,275,000
Amortization expense of intangible assets	185,000			159,000	528,000	480,000
Number of additional years provided in subcontract for option renewal					5 years
Number of reporting units on which goodwill impairment test was performed					3
Impairment charge of goodwill		1,149,000	1,149,000
Goodwill [Line Items]
Goodwill	28,037,000				28,037,000		29,186,000
Cash flow weighted average cost of capital assumption (in hundredths)	15.00%				15.00%
Market capitalization	41,775,000				41,775,000
Common Stock, outstanding (in shares)	11,384,490				11,384,490		11,240,000
SYA Unit [Member]
Goodwill [Line Items]
Goodwill	1,330,000				1,330,000
Preliminary internal step 1 analysis passing percentage (in hundredths)	224.00%				224.00%
Safety and Ecology Corporation [Member]
Goodwill [Line Items]
Goodwill	13,017,000				13,017,000
Preliminary internal step 1 analysis passing percentage (in hundredths)	18.00%				18.00%
Treatment Unit [Member]
Goodwill [Line Items]
Goodwill	13,690,000				13,690,000
Preliminary internal step 1 analysis passing percentage (in hundredths)	23.00%				23.00%
Minimum [Member]
Goodwill [Line Items]
Projected growth rate	2.00%				2.00%
Maximum [Member]
Goodwill [Line Items]
Projected growth rate	85.00%				85.00%
Patent [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	499,000				499,000		453,000
Accumulated Amortization	(143,000)				(143,000)		(105,000)
Net Carrying Amount	356,000				356,000		348,000
Patent [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Lives					8 years
Patent [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Lives					18 years
Software [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Lives					3 years
Gross Carrying Amount	380,000				380,000		380,000
Accumulated Amortization	(235,000)				(235,000)		(145,000)
Net Carrying Amount	145,000				145,000		235,000
Non-compete Agreement [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Lives					1 year 2 months 12 days
Gross Carrying Amount	265,000				265,000		265,000
Accumulated Amortization	(135,000)				(135,000)		(62,000)
Net Carrying Amount	130,000				130,000		203,000
Customer Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Lives					6 months
Gross Carrying Amount	790,000				790,000		790,000
Accumulated Amortization	(790,000)				(790,000)		(790,000)
Net Carrying Amount	0				0		0
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Useful Lives					12 years
Gross Carrying Amount	3,370,000				3,370,000		3,370,000
Accumulated Amortization	(835,000)				(835,000)		(546,000)
Net Carrying Amount	$ 2,535,000				$ 2,535,000		$ 2,824,000