Inventory

9 Months Ended

Sep. 30, 2021

Inventory Disclosure [Abstract]

Inventory

Note 3. Inventory

Inventory, net of allowance, consisted of the following as of the dates indicated:

	September 30,			December 31,
	2021			2020
Raw materials	$	1,662,205		$	1,079,528
Work in process		235,637			147,455
Finished goods		459,317			291,195
Total gross inventory		2,357,159			1,518,178
Less inventory allowance		(16,393	)		(26,052	)
	$	2,340,766		$	1,492,126

For the three and nine months ended September 30, 2021, the Company recorded adjustments to provision for excess inventory of $54,636 and $60,143, respectively. For the three and nine months ended September 30, 2020, the Company recorded adjustments to provision for excess inventory of $10,530 and $12,202, respectively. Adjustments in these periods to the allowance for estimated shrinkage, obsolescence and excess inventory have been included in cost of product and product-related services revenue in the accompanying condensed consolidated statements of operations.

HTG EdgeSeq instruments at customer locations under evaluation agreements are included in finished goods inventory. Finished goods inventory under evaluation as of September 30, 2021 was $169,042 compared with $50,855 as of December 31, 2020.