Income Taxes (Details 1) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Income Taxes
Federal statutory tax rate, amount	$ 558	$ 864
State tax rate, amount	114	139
Permanent difference - stock-based compensation, amount	25	(55)
Permanent difference - other, amount	38	(83)
Foreign tax credit generated, amount	(96)	(55)
Tax on foreign earnings - tax reform, amount	96	55
Foreign rate differential, amount	15	13
FDII deduction, amount	(26)	(57)
Total, amount	$ 724	$ 821
Federal statutory tax rate, percentage	21.00%	21.00%
State tax rate, percentage	4.20%	3.40%
Permanent difference - stock-based compensation, percentage	1.00%	(1.30%)
Permanent difference - other, percentage	1.40%	(2.00%)
Foreign tax credit generated, percentage	(3.60%)	(1.30%)
Tax on foreign earnings - tax reform, percentage	3.60%	1.30%
Foreign rate differential, percentage	0.60%	0.30%
FDII deduction, percentage	(1.00%)	(1.30%)
Total, percentage	27.20%	20.10%

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