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Share-Based and Other Compensation Matters - Narrative (Details)			3 Months Ended		6 Months Ended		63 Months Ended
	Aug. 25, 2020 USD ($)	Aug. 12, 2020 USD ($) employee $ / shares shares	Nov. 18, 2020 USD ($)	Mar. 11, 2020 USD ($)	Mar. 10, 2021 USD ($) plan $ / shares shares	Mar. 11, 2020 USD ($)	Mar. 10, 2021 USD ($) plan $ / shares shares	Aug. 26, 2020 $ / shares shares	Dec. 05, 2015 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock plans \| plan					2		2
Allocated share-based compensation expense \| $			$ 158,000	$ 237,000
Stock Options [Abstract]
Share-based payment award, options, outstanding (in shares) \| shares					823,083		823,083	860,501
Share-based payment award, compensation not yet recognized, stock options \| $					$ 0		$ 0
Restricted Stock Units and Performance Based Incentive Plan [Abstract]
Allocated share-based compensation expense \| $			158,000	237,000
Deferred Bonus
Restricted Stock Awards [Abstract]
Total cash bonus available to be earned \| $		$ 200,000
Management
Restricted Stock Awards [Abstract]
Number of employees \| employee		5
Employee Severance
Restricted Stock Awards [Abstract]
Number of positions eliminated \| employee		8
Total amount of severance that would be paid \| $					$ 1,000,000.0		$ 1,000,000.0
Employee Severance \| Minimum
Restricted Stock Awards [Abstract]
Percentage of individual's salary		25.00%
Employee Severance \| Maximum
Restricted Stock Awards [Abstract]
Percentage of individual's salary		100.00%
Restricted Stock Units (RSUs)
Restricted Stock Units and Performance Based Incentive Plan [Abstract]
Share-based payment award, award vesting period					3 years
Restricted Stock Awards [Abstract]
Target number of shares for distribution (in shares) \| shares					65,236		65,236	173,808
Unvested shares, fair value (in dollars per share) \| $ / shares					$ 2.27		$ 2.27	$ 2.57
Performance Based Incentive Plan
Restricted Stock Units and Performance Based Incentive Plan [Abstract]
Share-based payment award, award vesting period					3 years
Target number of shares for distribution \| shares					373,294		373,294
Restricted Stock
Restricted Stock Awards [Abstract]
Target number of shares for distribution (in shares) \| shares		127,000
Grant date fair value \| $	$ 139,000
Unvested shares, fair value (in dollars per share) \| $ / shares		$ 1.095
Selling, General and Administrative Expense \| Performance Based Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense \| $				89,000		$ 207,000
Restricted Stock Units and Performance Based Incentive Plan [Abstract]
Allocated share-based compensation expense \| $				89,000		207,000
Non Employee Directors Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment award, number of shares available for grant (in shares) \| shares					0		0
Stock Options [Abstract]
Share-based payment award, expiration period					10 years
Share-based payment award, options, grants (in shares) \| shares					0
Share-based payment award, options, outstanding (in shares) \| shares					0		0
Restricted Stock Awards [Abstract]
Restricted stock and unit awards granted to named executive officers, percentage					20.00%
Non Employee Directors Stock Plan \| First Anniversary
Stock Options [Abstract]
Share-based payment award, award vesting rights, percentage					100.00%
Non Employee Directors Stock Plan \| Selling, General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense \| $						390,000
Restricted Stock Units and Performance Based Incentive Plan [Abstract]
Allocated share-based compensation expense \| $						390,000
Employee Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment award, number of shares available for grant (in shares) \| shares					1,900,000		1,900,000
Share-based payment award, number of shares authorized (in shares) \| shares									4,100,000
Share-based payment award, shares issued (in shares) \| shares							7,400,000
Share-based payment award, options, forfeitures (in shares) \| shares							5,200,000
Stock Options [Abstract]
Share-based payment award, expiration period					10 years
Share-based payment award, options, outstanding (in shares) \| shares					823,083		823,083
Share-based payment award, exercise price range, lower range limit (in dollars per share) \| $ / shares					$ 2.82
Share-based payment award, exercise price range, upper range limit (in dollars per share) \| $ / shares					$ 5.95
Employee Stock Plan \| First Anniversary
Stock Options [Abstract]
Share-based payment award, award vesting rights, percentage					50.00%
Employee Stock Plan \| Second Anniversary
Stock Options [Abstract]
Share-based payment award, award vesting rights, percentage					25.00%
Employee Stock Plan \| Third Anniversary
Stock Options [Abstract]
Share-based payment award, award vesting rights, percentage					25.00%
Employee Stock Plan \| Selling, General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense \| $			25,000	40,000		136,000
Restricted Stock Units and Performance Based Incentive Plan [Abstract]
Allocated share-based compensation expense \| $			$ 25,000	$ 40,000		$ 136,000