Revenue Recognition (Details - Revenue by timing) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Product Information [Line Items]
Revenues	$ 177,518	$ 161,993
Transferred at Point in Time [Member]
Product Information [Line Items]
Revenues	151,068	132,379
Transferred over Time [Member]
Product Information [Line Items]
Revenues	25,899	29,028
Straight Line Basis [Member]
Product Information [Line Items]
Revenues	551	586
Photo Voltaic Solar Components [Member]
Product Information [Line Items]
Revenues	133,930	123,138
Photo Voltaic Solar Components [Member] | Transferred at Point in Time [Member]
Product Information [Line Items]
Revenues	133,930	123,138
Photo Voltaic Solar Components [Member] | Transferred over Time [Member]
Product Information [Line Items]
Revenues	0	0
Photo Voltaic Solar Components [Member] | Straight Line Basis [Member]
Product Information [Line Items]
Revenues	0	0
Roofing Solar System [Member]
Product Information [Line Items]
Revenues	25,899	29,028
Roofing Solar System [Member] | Transferred at Point in Time [Member]
Product Information [Line Items]
Revenues	0	0
Roofing Solar System [Member] | Transferred over Time [Member]
Product Information [Line Items]
Revenues	25,899	29,028
Roofing Solar System [Member] | Straight Line Basis [Member]
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] | Transferred at Point in Time [Member]
Product Information [Line Items]
Revenues	5,725	4,587
Electricity Revenue with PPA's [Member] | Transferred over Time [Member]
Product Information [Line Items]
Revenues	0	0
Electricity Revenue with PPA's [Member] | Straight Line Basis [Member]
Product Information [Line Items]
Revenues	0	0
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] | Transferred at Point in Time [Member]
Product Information [Line Items]
Revenues	1,789	1,750
Revenue From Sales And Leasing Of E V [Member] | Transferred over Time [Member]
Product Information [Line Items]
Revenues	0	0
Revenue From Sales And Leasing Of E V [Member] | Straight Line Basis [Member]
Product Information [Line Items]
Revenues	551	586
Other Services [Member]
Product Information [Line Items]
Revenues	9,624	2,904
Other Services [Member] | Transferred at Point in Time [Member]
Product Information [Line Items]
Revenues	9,624	2,904
Other Services [Member] | Transferred over Time [Member]
Product Information [Line Items]
Revenues	0	0
Other Services [Member] | Straight Line Basis [Member]
Product Information [Line Items]
Revenues	$ 0	$ 0