Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Revenue	[1]	$ 107,712	$ 106,795
Cost of products sold		78,553	75,630
Gross profit		29,159	31,165
Operating expenses:
Research and development		5,947	6,805
Selling, general and administrative		17,511	16,992
Total operating expenses		23,458	23,797
Operating income		5,701	7,368
Other (income) expense:
Gain on litigation settlement		(1,593)	0
Interest and financing expense		436	539
Miscellaneous		(165)	58
Total other (income) expense		(1,322)	597
Income Before Income Taxes		7,023	6,771
Income tax provision		1,692	1,457
Net income		5,331	5,314
Net income attributable to non-controlling interest		99	109
Net income attributable to Ultralife Corporation		5,232	5,205
Other comprehensive income:
Foreign currency translation adjustments		749	255
Comprehensive income attributable to Ultralife Corporation		$ 5,981	$ 5,460
Net income per share attributable to Ultralife Corporation common shareholders – Basic (in dollars per share)		$ 33	$ 33
Net income per share attributable to Ultralife Corporation common shareholders – Diluted (in dollars per share)		$ 33	$ 32
Weighted average shares outstanding – Basic (in shares)		15,902	15,783
Weighted average shares outstanding – Diluted (in shares)		16,096	16,179

[1] Sales classified to U.S. include shipments to U.S.-based prime contractors which in some cases may serve non-U.S. projects.