9. Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Unrealized Securities Gains (Losses) [Member]
Balance at December 31, 2016	$ 6	$ 3
Change in unrealized securities gains (losses), net of tax	(1)	25
Change in unfunded pension liability, net of tax	0	0
Balance at June 30, 2017	5	28
Adjustments Related to Pension Plan [Member]
Balance at December 31, 2016	(3,171)	(2,683)
Change in unrealized securities gains (losses), net of tax	0	0
Change in unfunded pension liability, net of tax	0	0
Balance at June 30, 2017	(3,171)	(2,683)
Accumulated Other comprehensive Income (Loss) [Member]
Balance at December 31, 2016	(3,165)	(2,680)
Change in unrealized securities gains (losses), net of tax	(1)	25
Change in unfunded pension liability, net of tax	0	0
Balance at June 30, 2017	$ (3,166)	$ (2,655)