Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Goodwill [Roll Forward]
Beginning balance	$ 4,462,000	$ 2,609,000
Acquisitions	0	1,854,000
Foreign currency translation	40,000	(1,000)
Ending balance	4,502,000	4,462,000	2,609,000
Finite-Lived Intangible Assets [Line Items]
Total	911,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2013	209,000
2014	142,000
2015	130,000
2016	123,000
2017	120,000
Thereafter	187,000
Total	911,000
Amortization of definite-lived intangible assets	313,000	948,000	102,000
Acquisition of TAS [Member]
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Accelerated Amortization of Intangible Assets		116,000
Non-contractual Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	646,000	646,000
Accumulated amortization	(621,000)	(545,000)
Total	25,000	101,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	25,000	101,000
Non - Contractual Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	911,000	911,000
Accumulated amortization	(453,000)	(305,000)
Total	458,000	606,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	458,000	606,000
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	471,000	471,000
Accumulated amortization	(118,000)	(59,000)
Total	353,000	412,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	353,000	412,000
In Process Research and Development [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	152,000	152,000
Accumulated amortization	(112,000)	(84,000)
Total	40,000	68,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	40,000	68,000
Contract Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	36,000	36,000
Accumulated amortization	(36,000)	(36,000)
Total	0	0
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	0	0
Trade Names and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	29,000	29,000
Accumulated amortization	(23,000)	(13,000)
Total	6,000	16,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	6,000	16,000
Foreign Currency Translation [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	37,000	12,000
Accumulated amortization	(8,000)	(8,000)
Total	29,000	4,000
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Total	$ 29,000	$ 4,000