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Income Taxes Narrative (Details) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Tax net operating loss carryforwards | $ 20,839,000 | $ 18,109,000
Valuation allowance, amount | 20,419,000 | 17,791,000
Unrecognized Tax Benefits | 0 | 0
State Tax Net Operating Losses [Member] |  |
Valuation allowance, amount | $ 18,400,000 | $ 15,600,000
Percent of deferred tax asset for which valuation allowance has been recognized | 100.00% | 99.00%
Foreign Tax Net Operating Losses [Member] |  |
Valuation allowance, amount | $ 2,000,000 | $ 2,200,000
Percent of deferred tax asset for which valuation allowance has been recognized | 85.00% | 92.00%

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