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SIGNIFICANT ACCOUNTING POLICIES (Details - Investment in Joint Ventures) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Roll Forward]
Beginning balance			$ 34,528
Equity in earnings in these joint ventures	$ 3,121	$ 945	5,406	$ 2,900
Equity contributions in existing joint ventures			1,441
Ending balance	$ 41,375		$ 41,375

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Equity Contributions In Joint Ventures

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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