Income Taxes (Deferred Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Net deferred tax assets (liabilities) - current	$ 83	$ 90
Net deferred tax assets (liabilities) - non-current	2,145	2,054
Net deferred tax assets (liabilities)	(553)	(600)
U.S. Federal And State [Member]
Valuation allowance	(177)	(144)
Net deferred tax assets (liabilities) - current	(97)	(108)
Deferred tax assets - non-current	4,929	5,419
Valuation allowance - noncurrent	(4,832)	(5,001)
Net deferred tax assets (liabilities) - non-current	97	108
Net deferred tax assets (liabilities)	0	0
U.S. Federal And State [Member] | Accrued Liabilities And Other [Member]
Deferred tax assets - current	181	156
Deferred tax assets - non-current	371	1,005
U.S. Federal And State [Member] | Prepaid Expenses [Member]
Deferred tax (liabilities) - current	(101)	(120)
U.S. Federal And State [Member] | Amortization Of Goodwill For Tax [Member]
Deferred tax assets - non-current	526	578
U.S. Federal And State [Member] | Amortization Of Startup Costs [Member]
Deferred tax assets - non-current	359	401
U.S. Federal And State [Member] | Property And Equipment [Member]
Deferred tax assets - non-current	1,089	1,333
U.S. Federal And State [Member] | NOL Carryforward [Member]
Deferred tax assets - non-current	2,584	2,102
U.S. Federal And State [Member] | Accumulated Other Comprehensive Income (Loss) [Member]
Deferred tax (liabilities) - non-current	0	(310)
Foreign [Member]
Net deferred tax assets (liabilities) - current	79	78
Valuation allowance - noncurrent	(1,745)	(2,175)
Net deferred tax assets (liabilities) - non-current	(632)	(678)
Net deferred tax assets (liabilities)	(553)	(600)
Foreign [Member] | Accrued Liabilities And Other [Member]
Deferred tax assets - non-current	322	443
Foreign [Member] | Property And Equipment [Member]
Deferred tax assets - non-current	621	620
Deferred tax (liabilities) - non-current	(2,682)	(2,292)
Foreign [Member] | NOL Carryforward [Member]
Deferred tax assets - current	0	13
Deferred tax assets - non-current	2,504	2,748
Foreign [Member] | Other [Member]
Deferred tax assets - current	79	65
Deferred tax (liabilities) - non-current	0	(22)
Foreign [Member] | Tax Credits [Member]
Deferred tax assets - non-current	$ 348	$ 0