Note 12. Income Taxes (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate		35.00%
Valuation Allowance, Deferred Tax Asset, Change in Amount			$ (3,062)
Domestic Tax Authority
Operating Loss Carryforwards	[1]	$ 258,061
Valuation Allowance, Operating Loss Carryforwards
Income Tax Reconciliation, Change in Deferred Tax Assets Valuation Allowance			$ (2,500)
Valuation Allowance of Deferred Tax Assets
Valuation Allowances and Reserves, Charged to Cost and Expense - Deferred Taxes on Unrealized Losses Allocated to Equity			(699)
Valuation Allowances and Reserves, Charged to Cost and Expense - Adjustments to Deferred Tax Assets			137

[1] Expires in varying amounts through the year 2028 with a significant portion expiring in 2020.