INVESTMENT SECURITIES - Contractual maturities, Available for sale (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Available for Sale, Amortized Cost
Due after one year through five years	$ 8,402
Due after five years through ten years	78,950
Due after ten years	180,160
Total, Amortized Cost	267,512
Available for Sale, Estimated Fair Value
Due after one year through five years	8,461
Due after five years through ten years	79,291
Due after ten years	181,101
Total, Estimated Fair Value	$ 268,853

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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