Equipment and Leasehold Improvements

12 Months Ended

Jun. 30, 2022

Equipment and Leasehold Improvements [Abstract]

Equipment and Leasehold Improvements

5.    EQUIPMENT AND LEASEHOLD IMPROVEMENTS

The major categories of equipment and leasehold improvements at June 30, 2022 and 2021 are summarized as follows: 

	Estimated
	useful lives (in years)		2022		2021
Machinery and equipment	5 - 10	$	601,315	$	593,595
Furniture and office equipment	5 - 10		337,419		357,351
Tooling	5		4,506,044		4,407,535
Computer & technology equipment	3 - 5		197,073		821,371
Leasehold improvements	3 - 10		2,951,054		3,074,421
Assets in progress	N/A		235,749		276,054
			8,828,654		9,530,327
Less: accumulated depreciation and amortization			7,740,637		8,249,147
Equipment and leasehold improvements, net		$	1,088,017	$	1,281,180