Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2022	Apr. 04, 2021
Income Statement [Abstract]
Revenue	$ 48,121	$ 48,101
Cost of revenue	49,061	38,935
Gross profit (loss)	(940)	9,166
Research and development	2,282	1,927
Selling, general and administrative expenses	11,690	8,603
Change in fair value of contingent consideration	0	56
Operating loss	(14,912)	(1,420)
Other income (expense):
Interest expense	(1,029)	(1,058)
Total other expense	(1,029)	(1,058)
Loss before income taxes	(15,941)	(2,478)
Income tax expense (benefit)	(194)	(425)
Net loss	(15,747)	(2,053)
Less: net income attributable to non-controlling interests	859	758
Net loss attributable to SkyWater Technology, Inc.	$ (16,606)	$ (2,811)
Net loss per share attributable to common shareholders, basic (in USD per share)	$ (0.42)	$ (1.04)
Net loss per share attributable to common shareholders, diluted (in USD per share)	$ (0.42)	$ (1.04)
Weighted average units used in computing net loss per unit, basic (in shares)	39,861,688	3,060,343
Weighted average units used in computing net loss per unit, diluted (in shares)	39,861,688	3,060,343