Note 10 - Share-based Compensation - Restricted Stock Units Activity (Details) - The 2014 Plan [Member]	6 Months Ended
	Jul. 01, 2023 $ / shares shares
Time-based Restricted Stock Units [Member]
Outstanding non-vested (in shares) | shares	274,939
Outstanding non-vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 3.59
Granted (in shares) | shares	288,893
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 13.00
Vested (in shares) | shares	(57,669)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 2.88
Forfeited or expired (in shares) | shares	(8,602)
Forfeited or expired, weighted average grant date fair value (in dollars per share) | $ / shares	$ 1.55
Outstanding non-vested (in shares) | shares	497,561
Outstanding non-vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 9.17
Performance-based Restricted Stock Units [Member]
Outstanding non-vested (in shares) | shares	225,000
Outstanding non-vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 8.73
Granted (in shares) | shares	0
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0
Vested (in shares) | shares	(125,000)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 6.15
Forfeited or expired (in shares) | shares	0
Forfeited or expired, weighted average grant date fair value (in dollars per share) | $ / shares	$ 0
Outstanding non-vested (in shares) | shares	100,000
Outstanding non-vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 11.96