Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Income Tax [Line Items]
Foreign rate difference	37.90%	(11.10%)
Accrued interest and penalties	$ 169,000	$ 177,000
Change in liability for uncertain tax positions	(56,000)	22,000
Estimated gross penalties and interest	(23,000)	18,000
Need For Valuation Allowance Based On History Of Cumulative Losses	3 years
Reduction to valuation allowance	178,000
Research & Development tax credits	2,658,000
Deferred Tax Assets, Operating Loss Carryforwards, Domestic	925,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	882,000	311,000
Cash payments for income taxes, net of refunds received	170,000	822,000
Income tax holiday, termination date	2013
Tax holiday decrease to income tax expense		115,000
CyberOptics Ltd. [Member]
Income Tax [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	226,000
Deferred tax asset, net operating loss carry forwards, reduction	$ 14,000	$ 44,000