Fair Values of Financial Instruments (Tables)

3 Months Ended

Mar. 24, 2018

Fair Value Disclosures [Abstract]

Fair Value, by Balance Sheet Grouping [Table Text Block]

The following table presents estimated fair values of the Company’s financial instruments and the level within the fair value hierarchy in which the fair value measurements fall in accordance with FASB ASC 825 at March 24, 2018, December 30, 2017 and March 25, 2017.

			Fair Value Measurements Using
March 24, 2018 In thousands	Carrying Amount		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	2,863	$	2,863	$	—	$	—
Financial liabilities
Current portion of long-term debt	$	18,941	$	—	$	18,941	$	—
Long-term debt	$	3,750	$	—	$	3,750	$	—

			Fair Value Measurements Using
December 30, 2017 In thousands	Carrying Amount		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	1,572	$	1,572	$	—	$	—
Financial liabilities
Current portion of long-term debt	$	1,250	$	—	$	1,250	$	—
Long-term debt	$	21,871	$	—	$	21,871	$	—

			Fair Value Measurements Using
March 25, 2017 In thousands	Carrying  Amount		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	2,536	$	2,536	$	—	$	—
Financial liabilities
Current portion of long-term debt	$	1,300	$	—	$	1,300	$	—
Long-term debt	$	23,000	$	—	$	23,000	$	—