8. Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Current:
Federal	$ (11)	$ 61
State	10	11
Total, Current	(1)	72
Federal	(1,780)	1,296
State	(43)	215
Impact of rate change	665	0
Total, Deferred	(1,158)	1,511
Total, Current and Deferred	$ (1,159)	$ 1,583