Summary of Significant Accounting Policies (Details - Disaggregation of revenue by revenue stream) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Product Information [Line Items]
Revenues	$ 177,518	$ 161,993
AUSTRALIA
Product Information [Line Items]
Revenues	132,954	124,248
JAPAN
Product Information [Line Items]
Revenues	80	65
ITALY
Product Information [Line Items]
Revenues	1,019	690
UNITED STATES
Product Information [Line Items]
Revenues	38,867	33,093
UNITED KINGDOM
Product Information [Line Items]
Revenues	2,053	1,211
GREECE
Product Information [Line Items]
Revenues	2,545	2,686
Photo Voltaic Solar Components [Member]
Product Information [Line Items]
Revenues	133,930	123,138
Photo Voltaic Solar Components [Member] | AUSTRALIA
Product Information [Line Items]
Revenues	132,025	123,138
Photo Voltaic Solar Components [Member] | JAPAN
Product Information [Line Items]
Revenues	0	0
Photo Voltaic Solar Components [Member] | ITALY
Product Information [Line Items]
Revenues	0	0
Photo Voltaic Solar Components [Member] | UNITED STATES
Product Information [Line Items]
Revenues	1,905	0
Photo Voltaic Solar Components [Member] | UNITED KINGDOM
Product Information [Line Items]
Revenues	0	0
Photo Voltaic Solar Components [Member] | GREECE
Product Information [Line Items]
Revenues	0	0
Roofing Solar System [Member]
Product Information [Line Items]
Revenues	25,899	29,028
Roofing Solar System [Member] | AUSTRALIA
Product Information [Line Items]
Revenues	0	0
Roofing Solar System [Member] | JAPAN
Product Information [Line Items]
Revenues	0	0
Roofing Solar System [Member] | ITALY
Product Information [Line Items]
Revenues	0	0
Roofing Solar System [Member] | UNITED STATES
Product Information [Line Items]
Revenues	25,899	29,028
Roofing Solar System [Member] | UNITED KINGDOM
Product Information [Line Items]
Revenues	0	0
Roofing Solar System [Member] | GREECE
Product Information [Line Items]
Revenues	0	0
Electricity Revenue with PPA's [Member]
Product Information [Line Items]
Revenues	5,725	4,587
Electricity Revenue with PPA's [Member] | AUSTRALIA
Product Information [Line Items]
Revenues	0	0
Electricity Revenue with PPA's [Member] | JAPAN
Product Information [Line Items]
Revenues	0	0
Electricity Revenue with PPA's [Member] | ITALY
Product Information [Line Items]
Revenues	1,019	690
Electricity Revenue with PPA's [Member] | UNITED STATES
Product Information [Line Items]
Revenues	108	0
Electricity Revenue with PPA's [Member] | UNITED KINGDOM
Product Information [Line Items]
Revenues	2,053	1,211
Electricity Revenue with PPA's [Member] | GREECE
Product Information [Line Items]
Revenues	2,545	2,686
Revenue From Sales And Leasing Of E V [Member]
Product Information [Line Items]
Revenues	2,340	2,336
Revenue From Sales And Leasing Of E V [Member] | AUSTRALIA
Product Information [Line Items]
Revenues	0	0
Revenue From Sales And Leasing Of E V [Member] | JAPAN
Product Information [Line Items]
Revenues	0	0
Revenue From Sales And Leasing Of E V [Member] | ITALY
Product Information [Line Items]
Revenues	0	0
Revenue From Sales And Leasing Of E V [Member] | UNITED STATES
Product Information [Line Items]
Revenues	2,340	2,336
Revenue From Sales And Leasing Of E V [Member] | UNITED KINGDOM
Product Information [Line Items]
Revenues	0	0
Revenue From Sales And Leasing Of E V [Member] | GREECE
Product Information [Line Items]
Revenues	0	0
Other Services [Member]
Product Information [Line Items]
Revenues	9,624	2,904
Other Services [Member] | AUSTRALIA
Product Information [Line Items]
Revenues	929	1,110
Other Services [Member] | JAPAN
Product Information [Line Items]
Revenues	80	65
Other Services [Member] | ITALY
Product Information [Line Items]
Revenues	0	0
Other Services [Member] | UNITED STATES
Product Information [Line Items]
Revenues	8,615	1,729
Other Services [Member] | UNITED KINGDOM
Product Information [Line Items]
Revenues	0	0
Other Services [Member] | GREECE
Product Information [Line Items]
Revenues	$ 0	$ 0