Net Loss Per Common Share (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Sep. 30, 2017	Mar. 31, 2017	Sep. 30, 2016
Basic income (loss) per share
Net income (loss)	$ (422,000)	$ (422,000)	$ 857,000	$ 857,000
Weighted average shares outstanding (in shares)		5,114,000		5,009,000
Diluted income (loss) per share
Dilutive effect of stock options (in shares)		0		43,000
Total weighted average shares outstanding (in shares)		5,114,000		5,052,000
Diluted income (loss) per share (in dollars per share)		$ (0.08)		$ 0.17