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Exercise price per share or per unit of warrants or rights outstanding.

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The cash inflow from the additional capital contribution to the entity.

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Per share or per unit amount of equity securities issued.

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Number of new stock issued during the period.

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Earnings Per Share - Narrative (Details) - USD ($)						12 Months Ended
Earnings Per Share - Narrative (Details) - USD ($)	Aug. 13, 2018	Aug. 09, 2018	Mar. 21, 2018	Mar. 19, 2018	Mar. 23, 2016	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Mar. 26, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Proceeds from exercise of unit warrant						$ 0	$ 1,093,000	$ 0
Exercise price per warrant unit (in usd per share)									$ 7.80
Proceeds from issuance of common stock						$ 0	$ 100,330,000	$ 0
Follow-on offering \| Firm shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Proceeds from secondary offering, net of costs (in shares)		1,270,000
Shares issued, price per share		$ 79.00
Underwriter \| Follow-on offering \| Firm shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Proceeds from issuance of common stock	$ 93,469
Underwriter \| Follow-on offering \| Share-based payment arrangement, option
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Proceeds from secondary offering, net of costs (in shares)		190,500
Unit warrant \| Underwriter
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Warrant units (in shares)									140,000
Proceeds from exercise of unit warrant				$ 1,093	$ 1,008
Proceeds from exercise of warrants, net of costs (in shares)			140,000
Restricted Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Non-vested restricted shares						642,677	614,911	570,171