Fair Values of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2016

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 in accordance with FASB ASC 825 at December 31, 2016 and December 26, 2015.

			Fair Value Measurements Using
			Quoted Prices in
			Active Markets		Significant Other		Significant
2016			for Identical		Observable		Unobservable
In Thousands	Fair Value		Assets (Level 1)		Inputs (Level 2)		Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	1,013	$	1,013	$	—	$	—
Financial liabilities
Current portion of Long-term debt	$	1,250	$	—	$	1,250	$	—
Long-term debt	$	24,189	$	—	$	24,189	$	—

			Fair Value Measurements Using
			Quoted Prices in
			Active Markets		Significant Other		Significant
2015			for Identical		Observable		Unobservable
In Thousands	Fair Value		Assets (Level 1)		Inputs (Level 2)		Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	1,982	$	1,982	$	—	$	—
Financial liabilities
Current portion of Long-term debt	$	1,810	$	—	$	1,810	$	—
Long-term debt	$	21,526	$	—	$	21,526	$	—