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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($)		12 Months Ended
	Jan. 01, 2019	Dec. 31, 2019	Dec. 31, 2020
Retained earnings		$ 47,562,000	$ 50,650,000
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201409Member	us-gaap:AccountingStandardsUpdate201409Member
Revision of Prior Period, Accounting Standards Update, Adjustment
Retained earnings	$ 57,000	$ 57,000

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