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LONG TERM INVESTMENT (Details) $ / shares in Units, ¥ in Thousands, $ in Thousands		3 Months Ended
	Sep. 05, 2019 shares	Mar. 31, 2021 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2019 CNY (¥)	Jun. 27, 2019 USD ($)	Sep. 11, 2017 USD ($) $ / shares shares
Classification of Investments [Abstract]
Total		$ 6,632		$ 6,340
Equity income in net income of affiliates		320	$ 148
Ninebell [Member]
Investments [Abstract]
Percentage of ordinary shares issued								20.00%
Purchase price								$ 1,200
Classification of Investments [Abstract]
Total		1,988		1,666
Ninebell [Member] | Class A Common Stock [Member]
Investments [Abstract]
Purchase price								$ 1,000
Shares issued (in shares) | shares								133,334
Share price (in dollars per share) | $ / shares								$ 7.50
Shengyi [Member]
Investments [Abstract]
Percentage of ordinary shares issued							15.00%
Investment - equity method							$ 109
Number of investors with agreements entered | shares	6
Classification of Investments [Abstract]
Total		157		134
Hefei Shixi [Member]
Investments [Abstract]
Investment in partnership					$ 4,200	¥ 30,000
Ownership percentage in partnership					10.00%	10.00%
Classification of Investments [Abstract]
Total		$ 4,487		$ 4,540

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