CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jan. 01, 2022	Jan. 02, 2021
Statement of Financial Position [Abstract]
Allowance for accounts receivable (in dollars)	$ 3,256	$ 3,595
Allowance for unbilled services (in dollars)	$ 1,364	$ 1,000
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value ( in dollars per share )	$ 0	$ 0
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	7,362,703	7,693,497
Common stock, shares outstanding	7,362,703	7,693,497