ALLOWANCES FOR CREDIT LOSS (Schedule of allowance for credit loss) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Premium Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2020	$ 233
Balance as of September 30, 2021	190
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2020	65
Balance as of September 30, 2021	531
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2020	298
Credit loss, expense (reversal)	423
Balance as of September 30, 2021	721
Premiums Receivable
Premium Receivable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2020	233
Credit loss expense (reversal)	(43)
Balance as of September 30, 2021	190
Reinsurance Recoverable, Net
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Balance as of December 31, 2020	65
Credit loss expense (reversal)	466
Balance as of September 30, 2021	$ 531