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Note 9 - Earnings (Loss) Per Common Share - Reconciliation of Weighted Average Shares Outstanding Used in Calculation of Basic and Diluted (Loss) Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Net loss	$ 1,503	$ 814	$ (1,533)	$ (981)
Less distributed and undistributed earnings allocable to restricted award holders	(28)	(32)	0	0
Less dividends declared attributable to restricted award holders	0	0	0	0
Net income (loss) allocable to common stockholders	$ 1,475	$ 782	$ (1,533)	$ (981)
Basic (in dollars per share)	$ 0.07	$ 0.04	$ (0.07)	$ (0.05)
Diluted (in dollars per share)	$ 0.07	$ 0.04	$ (0.07)	$ (0.05)
Basic (in shares)	20,875	20,541	20,772	20,468
Weighted average additional shares assuming conversion of potential common shares (in shares)	0	314	0	0
Weighted average shares outstanding – diluted (in shares)	20,875	20,855	20,772	20,468

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- Definition

The total amount of dividends declared in the period for each class of stock and the contractual amount of dividends (or interest on participating income bonds) that must be paid for the period (for example, unpaid cumulative dividends). Dividends declared in the current period do not include dividends declared in respect of prior-period unpaid cumulative dividends. Preferred dividends that are cumulative only if earned are deducted only to the extent that they are earned.

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