7. Income Taxes (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 0		$ 0		$ 0
Deferred tax asset	45,200		45,200
U.S. federal deferred tax assets	34,800		34,800
State deferred tax assets	6,800		6,800
Income tax expense	$ 3,380	$ 5,053	$ 6,692	$ 10,068
Effective income tax rate	43.00%	41.00%	43.00%	41.00%