Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock Outstanding [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Sep. 30, 2022	13,021,241
Balance at Sep. 30, 2022		$ 139	$ 94,667	$ 49,654	$ (15,313)	$ (7,500)	$ 121,647
Net income		0	0	(97)	0	0	(97)
Other comprehensive income (loss)		0	0	0	14	0	14
Issuance of common stock pursuant to the vesting of restricted stock units (in shares)	109,748
Issuance of common stock pursuant to the vesting of restricted stock units		1	0	0	0	0	1
Stock-based compensation		0	370	0	0	0	370
Balance (in shares) at Dec. 31, 2022	13,130,989
Balance at Dec. 31, 2022		140	95,037	49,557	(15,299)	(7,500)	121,935
Balance (in shares) at Sep. 30, 2022	13,021,241
Balance at Sep. 30, 2022		139	94,667	49,654	(15,313)	(7,500)	121,647
Net income							4,540
Other comprehensive income (loss)							(1,327)
Balance (in shares) at Mar. 31, 2023	13,171,489
Balance at Mar. 31, 2023		140	95,343	54,194	(16,640)	(7,500)	125,537
Balance (in shares) at Dec. 31, 2022	13,130,989
Balance at Dec. 31, 2022		140	95,037	49,557	(15,299)	(7,500)	121,935
Net income		0	0	4,637	0	0	4,637
Other comprehensive income (loss)		0	0	0	(1,341)	0	(1,341)
Issuance of common stock pursuant to the vesting of restricted stock units (in shares)	40,500
Issuance of common stock pursuant to the vesting of restricted stock units		0	0	0	0	0	0
Stock-based compensation		0	306	0	0	0	306
Balance (in shares) at Mar. 31, 2023	13,171,489
Balance at Mar. 31, 2023		140	95,343	54,194	(16,640)	(7,500)	125,537
Balance (in shares) at Sep. 30, 2023	13,188,489
Balance at Sep. 30, 2023		140	96,040	61,860	(17,824)	(7,500)	132,716
Net income		0	0	12,679	0	0	12,679
Other comprehensive income (loss)		0	0	0	506	0	506
Issuance of common stock pursuant to the vesting of restricted stock units (in shares)	128,601
Issuance of common stock pursuant to the vesting of restricted stock units		2	(2)	0	0	0	0
Stock-based compensation		0	406	0	0	0	406
Balance (in shares) at Dec. 31, 2023	13,317,090
Balance at Dec. 31, 2023		142	96,444	74,539	(17,318)	(7,500)	146,307
Balance (in shares) at Sep. 30, 2023	13,188,489
Balance at Sep. 30, 2023		140	96,040	61,860	(17,824)	(7,500)	132,716
Net income							8,352
Other comprehensive income (loss)							364
Balance (in shares) at Mar. 31, 2024	13,362,090
Balance at Mar. 31, 2024		142	96,800	70,212	(17,460)	(7,500)	142,194
Balance (in shares) at Dec. 31, 2023	13,317,090
Balance at Dec. 31, 2023		142	96,444	74,539	(17,318)	(7,500)	146,307
Net income		0	0	(4,327)	0	0	(4,327)
Other comprehensive income (loss)		0	0	0	(142)	0	(142)
Issuance of common stock pursuant to the vesting of restricted stock units (in shares)	45,000
Issuance of common stock pursuant to the vesting of restricted stock units		0	0	0	0	0	0
Stock-based compensation		0	356	0	0	0	356
Balance (in shares) at Mar. 31, 2024	13,362,090
Balance at Mar. 31, 2024		$ 142	$ 96,800	$ 70,212	$ (17,460)	$ (7,500)	$ 142,194