Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of Income Tax Provision

Income tax provision consists of the following as of December 31:

	2013			2012
Current:
Federal	$	—		$	—
State		(346	)		—
		(346	)		—
Deferred:
Federal		(269	)		(1,013	)
State		(49	)		(185	)
		(318	)		(1,198	)
Valuation allowance		318			1,198
Total income tax expense	$	(346	)	$	—

Components of Deferred Tax Assets and Liabilities

Components of the Company’s deferred tax assets and liabilities at December 31 are as follows:

	2013			2012
Deferred tax assets:
Inventory	$	44		$	1,051
Warranty		199			282
Net operating loss and tax credit carryforwards		46,191			45,330
Cancellation of debt gain		—			1
Accrued expenses		159			112
Stock based compensation		494			397
		47,087			47,173
Less—valuation allowance		(47,330	)		(47,013	)
Net deferred tax assets		(243	)		160
Deferred tax liabilities:
Investments in affiliates		242			(136	)
Depreciation and amortization		1			(24	)
Net deferred tax liabilities		243			(160	)
Net deferred tax assets (liabilities)	$	—		$	—

Reconciliation of Statutory and Effective Tax Rate

A reconciliation of the statutory rate and the effective tax rate follows:

	2013			2012
Federal statutory rate		(35.00	)%		(35.00	)%
State income taxes—net of federal benefit		(3.90	)%		(3.90	)%
Permanent differences		0.19	%		0	%
Tax reserve and other		(0.37	)%		3.24	%
Change in valuation allowance		15.66	%		21.23	%
Current state income tax		17.06	%		0.00	%
Other, net		23.42	%		14.43	%
Effective tax rate		17.06	%		0	%