Net Income Per Share (Details) - USD ($)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net income (loss)	$ 5,064,902	$ 3,269,783	$ 1,850,296
Denominator:
Basic weighted average shares	17,225,423	16,939,302	16,867,550
Dilutive effect of share-based awards	1,197	174,889	74,897
Diluted weighted average shares	17,226,620	17,114,191	16,942,447
Net income (loss) per common share:
Basic (in dollars per share)	$ 0.29	$ 0.19	$ 0.11
Diluted (in dollars per share)	$ 0.29	$ 0.19	$ 0.11
Options to purchase common stock outstanding (in shares)	100,000	104,500	550,834
Anti-dilutive options to purchase common stock excluded from the computation of diluted earnings per share (in shares)		100,000
RSU
Net income (loss) per common share:
Restricted stock units outstanding ( in shares)	0	0	0