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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred Tax Assets, Gross [Abstract]
Net operating loss carry-forwards	$ 28,243	$ 25,796
Credit carry-forwards	165	128
Deferred income	399	514
Intangibles	484	839
Other, net	74	120
Total deferred tax assets	29,365	27,397
Valuation allowance	29,365	27,397
Net deferred tax assets	$ 0	$ 0

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed.

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.