Stockholder's Equity and Stock-Based Compensation - Narrative (Details) - USD ($)				12 Months Ended
	Jun. 27, 2019	Jun. 13, 2018	Mar. 12, 2018	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividends paid				$ 0	$ 0		$ 0
Stock Repurchase Program, authorized amount								$ 2,000,000
Shares repurchased (in shares)				324,053
Shares repurchase cost				$ 98,000	99,000
Pre-tax stock-based compensation expense				$ 700,000	$ 1,100,000
2014 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)		0
2018 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares)		3,000,000
Increase in number of shares authorized		500,000
Number of shares available for grant (in shares)				1,900,000
2013 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for grant (in shares)				1,500,000
Number of shares available for grant (in shares)				300,000
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)				1,442,836
Granted (in dollars per share)				$ 0.16	$ 0.57
Vested (in dollars per share)				$ 0.61	$ 0.72
Options exercised (in shares)				0	0
Total compensation expense not yet recognized on nonvested stock awards granted				$ 400,000
Weighted average period over which the unrecognized compensation expense related to nonvested stock awards granted is expected to be recognized				1 year 4 months 28 days
Shares outstanding (in shares)				4,488,188	4,284,900
Employee Stock Option | 2018 Stock Incentive Plan And 2013 Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Percentage of shares vesting				50.00%
Employee Stock Option | Minimum | 2018 Stock Incentive Plan And 2013 Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Price at which common stock may be purchased under option grant, as a percent of the fair value at grant date				100.00%
Employee Stock Option | Maximum | 2018 Stock Incentive Plan And 2013 Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Length of time options are exercisable after grant date				10 years
Employee Stock Option | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)			500,000
Vesting period			10 years
Percentage of shares vesting				3.00%
Employee Stock Option | Executive Officer | Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in dollars per share)						$ 0.74
Employee Stock Option | Executive Officer | Minimum | Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)						0
Employee Stock Option | Executive Officer | Maximum | Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)						293,700
Stock Option Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding (in shares)				539,070
Performance Shares | Annual Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in dollars per share)				$ 0.17
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation expense not yet recognized on nonvested stock awards granted				$ 200,000
Weighted average period over which the unrecognized compensation expense related to nonvested stock awards granted is expected to be recognized				1 year 4 months 1 day
Granted (in dollars per share)				$ 0.12	$ 0.85
Fair value of vested restricted stock				$ 700,000	$ 600,000
Aggregate intrinsic value of vested restricted stock				$ 300,000	$ 200,000
Restricted Stock | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)	250,000
Vesting period			10 years
Restricted Stock | Director | 2018 Stock Incentive Plan And 2013 Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				1 year
Restricted Stock | Director | Minimum | 2018 Stock Incentive Plan And 2013 Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				1 year
Restricted Stock | Director | Maximum | 2018 Stock Incentive Plan And 2013 Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Restricted Stock | Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)			250,000
Percentage of shares vesting				3.00%