Income Taxes - Deferred Tax Assets (Details) - USD ($)	Sep. 30, 2020	Sep. 30, 2019
Deferred tax assets:
Net operating loss carryforwards	$ 4,659,000	$ 2,632,000
Accounts receivable	69,000	41,000
Inventory	883,000	393,000
Intangibles	1,259,000	707,000
Accrued expenses	132,000	53,000
Stock options	14,000	109,000
Investment in equity method investee	100,000	112,000
Other	0	0
Total deferred tax assets	7,116,000	4,047,000
Deferred tax liabilities:
Financial basis in excess of tax basis of certain assets	416,000	705,000
Other	323,000	95,000
Total deferred tax liabilities	739,000	800,000
Less valuation allowance	6,377,000	3,247,000
Net deferred taxes	$ 0	$ 0