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Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Operating Loss Carryforwards [Line Items]
Alternative minimum tax credit	$ 2,438	$ 3,525
Additions based on tax positions related to prior years	44	$ 106
Enterprise Zone Credits
Operating Loss Carryforwards [Line Items]
Tax credit carryforward amount	316
California
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	9,442
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 9,001

X

- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Alternative Minimum Tax
-URI http://asc.fasb.org/extlink&oid=6504908

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 3
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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

+ References

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