Goodwill and Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended	6 Months Ended	12 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Mar. 31, 2021
Goodwill and Intangible Assets
Amortization expense	$ 39,000	$ 47,000	$ 39,000
Amortization expense	$ 19,000	$ 23,000	$ 1,563,840	$ 1,524,560

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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