2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES : Trading Securities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2020	Dec. 31, 2019
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Short-term Investments		$ 111,386
Available-for-sale Securities, Gross Unrealized Gain		354
Available-for-sale Securities, Gross Unrealized Loss		(757)
Investment Owned, at Fair Value		110,983
Trading Securitesr Equity [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Short-term Investments	$ 23,851
Trading Securites Equity [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Short-term Investments		17,674
Available-for-sale Securities, Gross Unrealized Gain	4,218	211
Available-for-sale Securities, Gross Unrealized Loss	(3,598)	(745)
Investment Owned, at Fair Value	$ 24,471	17,140
Trading Securites Debt [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Short-term Investments		93,712
Available-for-sale Securities, Gross Unrealized Gain		143
Available-for-sale Securities, Gross Unrealized Loss		(12)
Investment Owned, at Fair Value		$ 93,843

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Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.

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Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities.

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Value of the investment at close of period. For schedules of investments that are categorized, the value would be aggregated by category. For investment in and advances to affiliates, if operations of any controlled companies are different in character from those of the company, group such affiliates within divisions and by type of activities.

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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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