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Note 10. Income Taxes Reconciliation of Effective Tax Rate (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
State and local income taxes, net of federal tax benefits	4.00%	4.00%	2.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	(50.00%)	0.00%	0.00%
Permanent differences	0.00%	1.00%	1.00%
Effective Income Tax Rate Reconciliation, Uncertain Tax Positions	(9.00%)	0.00%	0.00%
Net change in valuation allowance	1.00%	0.00%	1.00%
Other	1.00%	0.00%	(2.00%)
Effective income tax rate	(18.00%)	40.00%	37.00%

X

- Definition

Percentage 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 applicable to permanent differences.

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Percentage 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 applicable to uncertain tax positions.

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

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage 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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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