Earnings Per Share (Details) - USD ($)	3 Months Ended				6 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net income	$ 1,271,103	$ 698,651	$ 1,429,570	$ 1,133,058	$ 1,969,754	$ 2,562,628
Denominator:
Basic weighted average shares	17,352,340		17,253,746		17,334,553	17,250,059
Dilutive effect of share-based awards	1,690				5,551
Diluted weighted average shares	17,354,030		17,253,746		17,340,104	17,250,059
Earnings per common share:
Basic EPS	$ 0.07		$ 0.08		$ 0.11	$ 0.15
Diluted EPS	$ 0.07		$ 0.08		$ 0.11	$ 0.15
Options to purchase common stock outstanding (in shares)	25,000		100,000		25,000	100,000
Restricted stock units outstanding (in shares)	82,886		0		82,886	0
Diluted weighted-average shares outstanding excluded from computation of diluted EPS (in shares)	277,520		100,000		138,760	100,000