SECURITIES - Gross unrealized gains and losses (Details) - USD ($) $ in Thousands	Feb. 29, 2020	Dec. 31, 2019	Dec. 31, 2018
Securities available for sale
Amortized Cost		$ 237,574	$ 212,316
Gross Unrealized Gains		2,195	512
Gross Unrealized Losses		296	3,535
Fair Value		239,473	209,293
Securities held to maturity
Amortized Cost	$ 21,500	26,372	44,688
Gross Unrealized Gains	522	561	540
Gross Unrealized Losses		6	522
Fair Value	$ 22,100	26,927	44,706
U.S. government and government-sponsored enterprise obligations
Securities available for sale
Amortized Cost		14,994	27,997
Gross Unrealized Gains		210	71
Gross Unrealized Losses			527
Fair Value		15,204	27,541
U.S. government agency and government-sponsored residential mortgage-backed securities
Securities available for sale
Amortized Cost		163,982	105,340
Gross Unrealized Gains		1,456	335
Gross Unrealized Losses		265	1,658
Fair Value		165,173	104,017
Securities held to maturity
Amortized Cost		12,682	15,025
Gross Unrealized Gains		86	63
Gross Unrealized Losses		6	481
Fair Value		12,762	14,607
U.S. government-sponsored collateralized mortgage obligations
Securities available for sale
Amortized Cost		26,137	31,293
Gross Unrealized Gains		243
Gross Unrealized Losses		7	365
Fair Value		26,373	30,928
Securities held to maturity
Amortized Cost		1,433	1,724
Gross Unrealized Gains		69	29
Fair Value		1,502	1,753
SBA asset-backed securities
Securities available for sale
Amortized Cost		32,461	47,686
Gross Unrealized Gains		286	106
Gross Unrealized Losses		24	985
Fair Value		32,723	46,807
Securities held to maturity
Amortized Cost		5,308	5,818
Gross Unrealized Gains		124	42
Gross Unrealized Losses			41
Fair Value		5,432	5,819
Municipal bonds
Securities held to maturity
Amortized Cost		6,949	22,121
Gross Unrealized Gains		282	406
Fair Value		$ 7,231	$ 22,527

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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