Stock-based Compensation, Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Mar. 30, 2022	Mar. 31, 2022
Weighted average remaining contractual term [Abstract]
Exercisable		3 months 18 days
Unrecognized compensation expense		$ 35
Stock Options [Member]
Number of shares [Abstract]
Outstanding at beginning period (in shares)		3,938,613
Granted (in shares)		860,000
Exercised (in shares)		(15,000)
Forfeited and expired (in shares)		(348,899)
Outstanding at end of period (in shares)		4,434,714
Exercisable at end of period (in shares)		1,396,863
Weighted average exercise price per share [Abstract]
Outstanding at beginning of period (in dollars per share)		$ 1.90
Granted (in dollars per share)		1.45
Exercised (in dollars per share)		1.29
Forfeited and expired (in dollars per share)		2.97
Outstanding at end of period (in dollars per share)		1.73
Exercisable at end of period (in dollars per share)		$ 1.94
Weighted average remaining contractual term [Abstract]
Outstanding		8 years 9 months 18 days
Exercisable		7 years 6 months
Weighted-average grant date fair value (in dollars per share)		$ 1.09
Unrecognized compensation expense		$ 3,393
Unrecognized compensation expense, weighted average period		2 years 7 months 6 days
Aggregate intrinsic value of options outstanding		$ 39
Aggregate intrinsic value of options exercisable		$ 1
Stock Options [Member] | Chief Executive Officer [Member]
Number of shares [Abstract]
Granted (in shares)	160,000