(11) Employee Benefits (Details - Amounts recognized) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Amounts recognized on Consolidated Balance Sheet
Other assets	$ 0	$ 0	$ 0
Other liabilities	(6,513)	(7,087)	(5,717)
Net amount recognized	(6,513)	(7,087)	(5,717)
Amounts recognized in accumulated other comprehensive loss consists of:
Net loss	13,297	13,092	11,896
Unrecognized transition asset	0	0	0
Net amount recognized	13,297	13,092	11,896
Components of net periodic benefit cost
Interest cost	693	808	775
Expected return on assets	(1,150)	(1,012)	(1,163)
Amortization of transition asset	0	0	0
Amortization of net  loss	839	376	443
Net periodic benefit cost	382	172	55
Settlement (gain)/loss	0	0	0
Total	382	172	55
Benefit Obligation Recognized in Other Comprehensive Loss (Income)
Net loss (gain)	205	1,197	545
Prior service cost (credit)	0	0	0
Amortization of prior service cost	0	0	0
Net amount recognized in other comprehensive loss (income)	$ 205	$ 1,197	$ 545