Income Taxes - Summary of Effective Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
U.S. federal income taxes at the statutory rate	$ (1,264)	$ (692)
State taxes, net of federal effects	(108)	(53)
Permanent differences	10	13
Impact of state tax rate change to deferred	(36)	119
Expired net operating loss carry-forwards	0	4,026
Prior year provision to actual adjustments	(36)	0
Other	8	12
Change in valuation allowance	1,347	(3,255)
Income tax (benefit) expense	$ (79)	$ 170

Income Tax Reconciliation, Expired Net Operating Loss Carryforward

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Income Tax Reconciliation, Impact of State Rate Change to Deferred

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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