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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of allowance for doubtful accounts

Activity within the Company’s allowance for doubtful accounts for the periods presented is as follows:

			2020						2019
Beginning balance			$	1,589					$	2,390
Additions (Subtractions)			333						(189)
Deductions (write-offs/recoveries) from reserve			(326)						(612)
Ending balance			$	1,596					$	1,589

Summary of product warranty activity

The following table summarizes product warranty activity during 2020 and 2019:

			2020						2019
Beginning balance			$	2,194					$	1,916
Charges to expense			1,091						2,186
Costs incurred			(1,473)						(1,908)
Ending balance			$	1,812					$	2,194

Revenue and related development costs, customer-funded research and development costs

Revenue and related development costs from customer-funded research and development are as follows:

			Year Ended December 31,
			2020						2019
Customer-funded service sales			$	2,043					$	5,816
Customer-funded costs included in costs of service sales			$	2,935					$	4,373

Schedule of reconciliation of basic and diluted weighted average common shares outstanding

A reconciliation of the basic and diluted weighted average common shares outstanding is as follows:

			2020						2019
Weighted average common shares outstanding—basic			17,669						17,459
Dilutive common shares issuable in connection with stock plans			—						—
Weighted average common shares outstanding—diluted			17,669						17,459

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Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

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-Name Accounting Standards Codification
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Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.

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Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit).

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