Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

Supplemental Cash Flow Information

	(Dollars in thousands) Years Ended December 31,
	2020		2019		2018
Interest paid	$	11,859	$	16,474	$	11,573
Taxes paid	$	3,810	$	5,699	$	316
Non-cash activities:
Purchases of property and equipment not paid	$	2,477	$	1,380	$	824

Schedule of Contract with Customer, Asset and Liability

Contract assets and contract liabilities from revenue contracts with customers are as follows:

	(Dollars in thousands)
	December 31, 2020		December 31, 2019
Contract assets	$	154,028	$	106,670
Contract liabilities	$	28,264	$	14,517

Schedule of Disaggregation of Revenue

In addition to the revenue categories disclosed above, the following table reflects our revenue disaggregated by major end-use market:

			(Dollars in thousands) Years Ended December 31,				% of Net Revenues
	Change		2020		2019		2020		2019
Consolidated Ducommun
Military and space	$	99,059	$	422,859	$	323,800	67.2	%	44.9	%
Commercial aerospace	(180,361)		168,142		348,503		26.8	%	48.3	%
Industrial	(10,845)		37,940		48,785		6.0	%	6.8	%
Total	$	(92,147)	$	628,941	$	721,088	100.0	%	100.0	%
Electronic Systems
Military and space	$	64,431	$	308,676	$	244,245	78.6	%	67.8	%
Commercial aerospace	(21,326)		46,017		67,343		11.7	%	18.7	%
Industrial	(10,845)		37,940		48,785		9.7	%	13.5	%
Total	$	32,260	$	392,633	$	360,373	100.0	%	100.0	%
Structural Systems
Military and space	$	34,628	$	114,183	$	79,555	48.3	%	22.1	%
Commercial aerospace	(159,035)		122,125		281,160		51.7	%	77.9	%
Total	$	(124,407)	$	236,308	$	360,715	100.0	%	100.0	%

Schedule of Weighted Average Number of Shares Outstanding Used to Compute Earnings Per Share

The net income and weighted-average common shares outstanding used to compute earnings per share were as follows:

	(In thousands, except per share data) Years Ended December 31,
	2020		2019		2018
Net income	$	29,174	$	32,461	$	9,035
Weighted-average number of common shares outstanding
Basic weighted-average common shares outstanding	11,676		11,518		11,390
Dilutive potential common shares	256		274		269
Diluted weighted-average common shares outstanding	11,932		11,792		11,659
Earnings per share
Basic	$	2.50	$	2.82	$	0.79
Diluted	$	2.45	$	2.75	$	0.77

Schedule of Weighted Average Number of Shares Outstanding Excluded from Computation of Diluted Earnings

Potentially dilutive stock awards to purchase common stock, as shown below, were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive. However, these shares may be potentially dilutive common shares in the future.

	(In thousands) Years Ended December 31,
	2020	2019	2018
Stock options and stock units	254	127	208