Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory taxes (in hundredths)	34.00%	34.00%
State income taxes, net of federal tax benefit (in hundredths)	4.00%	4.10%
Foreign taxes less than the domestic rate (in hundredths)	(1.20%)	(0.80%)
Permanent differences (in hundredths)	0.00%	(0.30%)
Change in valuation allowance (in hundredths)	(34.80%)	(48.00%)
Other (in hundredths)	(1.00%)	2.30%
Effective income tax rate (in hundredths)	1.00%	(8.70%)
Deferred tax assets:
Federal net operating loss carryforward	$ 34,868	$ 27,595
State loss carryforward	3,860	3,382
Goodwill	27,961	0
Other intangible assets	3,844	1,188
Allowance for bad debts	637	1,050
Stock-based compensation	1,214	874
Accrued expenses	140	111
Inventory	93	88
Fixed assets	77	0
Other	941	425
Total gross deferred tax assets	73,635	34,713
Deferred tax liabilities:
Fixed assets	0	(140)
Goodwill	0	(961)
Total gross deferred tax liabilities	0	(1,101)
Valuation Allowance, Amount	(73,635)	(34,573)
Total net deferred liability	0	(961)
Change in amount of deferred tax asset valuation allowance	39,044	6,443
Operating Loss Carryforwards [Line Items]
Unrecognized tax benefits	0
Uncertain tax positions	0
U.S. Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	102,552
Canadian Federal and Provincial [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	6,853
State Jurisdiction [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 84,771