Income Taxes Income Taxes (Summary of Net Deferred Tax Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary Of Net Deferred Tax Assets [Line Items]
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	$ 1,992	$ 2,028
Deferred Tax Assets, Inventory	365	377
Deferred Tax Assets, Operating Loss Carryforwards	4,705	4,822
Deferred Tax Assets, Tax Credit Carryforwards, General Business	403	404
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	268	268
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	38	38
Deferred Tax Assets, Gross	7,771	7,937
Deferred Tax Liabilities, Prepaid Expenses	(251)	(294)
Deferred Tax Liabilities, Property, Plant and Equipment	130	(440)
Deferred Tax Liabilities, Intangible Assets	(79)	(131)
Deferred Tax Liabilities, Gross	(200)	(865)
Deferred Tax Assets, Valuation Allowance	(7,571)	(7,072)
Deferred Tax Assets, Net of Valuation Allowance	$ 0	$ 0