Note 4 - Accounts Receivable, Transit Accounts Receivable and Transit Accounts Payable (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

	June 30, 2018			December 30, 2017
Billed	$	37,934		$	31,448
Accrued and unbilled		9,891			10,573
Work-in-progress		5,173			5,026
Allowance for sales discounts and doubtful accounts		(1,257	)		(967	)
Accounts receivable, net	$	51,741		$	46,080