(11) Employee Benefits (Details - Amounts recognized) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amounts recognized on Consolidated Balance Sheet
Other assets	$ 3,818	$ 0	$ 0
Other liabilities		(6,513)	(7,087)
Net amount recognized	3,818	(6,513)	(7,087)
Amounts recognized in accumulated other comprehensive loss consists of:
Net loss	3,794	13,297	13,092
Unrecognized transition asset	0	0	0
Net amount recognized	3,794	13,297	13,092
Components of net periodic benefit cost
Interest cost	553	693	808
Expected return on assets	(1,301)	(1,150)	(1,012)
Amortization of transition asset	0	0	0
Amortization of net loss	896	839	376
Net periodic benefit cost	148	382	172
Settlement (gain)/loss	(865)	0	0
Total	(717)	382	172
Benefit Obligation Recognized in Other Comprehensive Loss (Income)
Net loss (gain)	(9,503)	205	1,197
Prior service cost (credit)	0	0	0
Amortization of prior service cost	0	0	0
Net amount recognized in other comprehensive loss (income)	$ (9,503)	$ 205	$ 1,197