Income Taxes - Effective Tax Rate Reconciliation (Details)	11 Months Ended	12 Months Ended
	Dec. 31, 2017	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Taxes at federal statutory rates	35.00%	21.00%	21.00%	33.80%
State income taxes, net of federal tax benefit		4.10%	5.90%	40.40%
Provision to return true-up		(4.00%)	(2.50%)	(41.60%)
Non-cash stock option vesting expense		(0.60%)	(1.20%)	(12.20%)
FCC license deferred tax liability impact on valuation allowance		(0.00%)	(0.00%)	100.40%
Impact of Tax Act on deferred tax valuation		(0.00%)	(0.00%)	(1382.30%)
Valuation allowance and NOL carryforward benefits		(20.40%)	(23.60%)	1365.30%
Other		(0.10%)	0.10%	0.50%
Effective tax rate		0.00%	(0.30%)	104.30%