Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets, net
Net operating loss carryforwards	$ 32,103	$ 32,253
Net operating loss carryforwards of foreign subsidiaries	374	374
Book over tax depreciation	(54)	(43)
Stock-based compensation expense	10	577
Other	125us-gaap_DeferredTaxAssetsOther	116us-gaap_DeferredTaxAssetsOther
Deferred tax assets	32,558us-gaap_DeferredTaxAssetsGross	33,277us-gaap_DeferredTaxAssetsGross
Valuation allowance for deferred tax assets	(32,558)	(33,277)
Reconciliation of income tax benefit to statutory rate:
Income tax (benefit) at statutory rate	(93)	212
State income taxes, net of federal income tax benefit	49	4
Changes in state net operating loss carryforwards	508
Permanent differences	13	8
True-up prior year NOL		(8)
Change in valuation allowance	(718)	2,405
Change in state tax rate	241	(2,605)
Other		$ (16)

The portion of the difference between total income tax expense or benefit as reported in the income statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations that is attributable to changes in the income tax rates under changes in state net operating loss carryforwards during the period.

No definition available.