SUMMARY OF ACCOUNTING POLICIES (Details - Investment in Joint Ventures) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2021	Mar. 31, 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	2,285	$ 1,955
Ending balance	$ 36,813

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

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