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7. Income Taxes (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 0		$ 0
Deferred tax asset	32,300
U.S. federal deferred tax assets	22,700
State deferred tax assets	9,600
Income tax expense	$ 1,412	$ 3,312
Effective income tax rate	31.00%	43.00%

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.

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