CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Common Stock	Surplus	Retained Earnings	Accumulated Other Comprehensive (Loss) Income, Net	Total
Balance at Sep. 30, 2020	$ 42	$ 63,725	$ 14,120	$ 156	$ 78,043
Balance (in shares) at Sep. 30, 2020	4,175,144
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			1,519		1,519
Other comprehensive income (loss), net of tax				167	167
Stock-based compensation		229			229
Stock-based compensation (in shares)	7,390
Issuance of common stock		66			66
Issuance of common stock (in shares)	3,000
Balance at Dec. 31, 2020	$ 42	64,020	15,639	323	80,024
Balance (in shares) at Dec. 31, 2020	4,185,534
Balance at Sep. 30, 2020	$ 42	63,725	14,120	156	78,043
Balance (in shares) at Sep. 30, 2020	4,175,144
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income					3,795
Other comprehensive income (loss), net of tax					97
Balance at Jun. 30, 2021	$ 56	97,014	17,915	253	115,238
Balance (in shares) at Jun. 30, 2021	5,552,457
Balance at Dec. 31, 2020	$ 42	64,020	15,639	323	80,024
Balance (in shares) at Dec. 31, 2020	4,185,534
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			2,055		2,055
Other comprehensive income (loss), net of tax				(97)	(97)
Stock-based compensation		216			216
Stock-based compensation (in shares)	7,229
Issuance of common stock		47			47
Issuance of common stock (in shares)	2,127
Balance at Mar. 31, 2021	$ 42	64,283	17,694	226	82,245
Balance (in shares) at Mar. 31, 2021	4,194,890
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			221		221
Other comprehensive income (loss), net of tax				27	27
Savoy acquisition rollover options value		1,269			1,269
Stock-based compensation		224			224
Issuance of common stock	$ 14	31,238			31,252
Issuance of common stock (in shares)	1,357,567
Balance at Jun. 30, 2021	$ 56	97,014	17,915	253	115,238
Balance (in shares) at Jun. 30, 2021	5,552,457
Balance at Sep. 30, 2021	$ 56	97,246	24,971	256	122,529
Balance (in shares) at Sep. 30, 2021	5,563,426
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			6,537		6,537
Other comprehensive income (loss), net of tax				54	54
Stock-based compensation		217			217
Stock awards granted, net of forfeitures (in shares)	(3,011)
Issuance of common stock in lieu of directors' fees		42			42
Issuance of common stock in lieu of directors' fees (in shares)	2,384
Balance at Dec. 31, 2021	$ 56	97,505	31,508	310	129,379
Balance (in shares) at Dec. 31, 2021	5,562,799
Balance at Sep. 30, 2021	$ 56	97,246	24,971	256	122,529
Balance (in shares) at Sep. 30, 2021	5,563,426
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income					17,730
Other comprehensive income (loss), net of tax					(532)
Balance at Jun. 30, 2022	$ 73	126,215	41,379	(276)	167,391
Balance (in shares) at Jun. 30, 2022	7,296,624
Balance at Dec. 31, 2021	$ 56	97,505	31,508	310	129,379
Balance (in shares) at Dec. 31, 2021	5,562,799
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			5,860		5,860
Other comprehensive income (loss), net of tax				(345)	(345)
Cash dividends declared			(588)		(588)
Stock-based compensation		462			462
Stock awards granted, net of forfeitures	$ 2	(2)
Stock awards granted, net of forfeitures (in shares)	266,770
Balance at Mar. 31, 2022	$ 58	97,965	36,780	(35)	134,768
Balance (in shares) at Mar. 31, 2022	5,829,569
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			5,333		5,333
Other comprehensive income (loss), net of tax				(241)	(241)
Cash dividends declared			(734)		(734)
Stock-based compensation		564			564
Shares received related to tax withholding		(28)			(28)
Shares received related to tax withholding (in shares)	(677)
Stock awards granted, net of forfeitures (in shares)	1,482
Issuance of common stock	$ 15	27,714			27,729
Issuance of common stock (in shares)	1,466,250
Balance at Jun. 30, 2022	$ 73	$ 126,215	$ 41,379	$ (276)	$ 167,391
Balance (in shares) at Jun. 30, 2022	7,296,624