Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Jun. 25, 2016	Dec. 26, 2015
Current assets:
Cash and cash equivalents	$ 108,713,000	$ 115,370,000	[1]
Estimated Fair Value	9,215,000	1,652,000	[1]
Accounts receivable, net	62,705,000	59,832,000	[1]
Inventories:
Raw materials and purchased parts	24,873,000	24,423,000	[1]
Work in process	20,694,000	20,124,000	[1]
Finished goods	5,248,000	6,801,000	[1]
Total inventory, net	50,815,000	51,348,000	[1]
Other current assets	8,137,000	6,261,000	[1]
Total current assets	239,585,000	234,463,000	[1]
Property, plant and equipment, at cost:
Land and land improvements	4,280,000	4,607,000	[1]
Buildings and building improvements	8,099,000	8,971,000	[1]
Machinery and equipment	34,123,000	31,888,000	[1]
Total Property, plant and equipment	46,502,000	45,466,000	[1]
Less accumulated depreciation and amortization	(27,837,000)	(26,466,000)	[1]
Net property, plant and equipment	18,665,000	19,000,000	[1]
Goodwill	60,753,000	60,264,000	[1]
Intangible assets, net	22,085,000	25,297,000	[1]
Other assets	6,408,000	6,322,000	[1]
Total assets	347,496,000	345,346,000	[1]
Current liabilities:
Accounts payable	28,455,000	27,290,000	[1]
Accrued compensation and benefits	14,735,000	15,628,000	[1]
Accrued warranty	4,113,000	3,785,000	[1]
Deferred profit	6,876,000	3,730,000
Income taxes payable	1,418,000	4,195,000	[1]
Other accrued liabilities	8,933,000	8,563,000	[1]
Total current liabilities	64,530,000	63,191,000	[1]
Accrued retirement benefits	15,872,000	15,397,000	[1]
Noncurrent deferred gain on sale of facility	12,417,000	13,142,000	[1]
Deferred income taxes	6,208,000	6,954,000	[1]
Noncurrent income tax liabilities	6,832,000	6,761,000	[1]
Other accrued liabilities	1,800,000	1,764,000	[1]
Commitments and contingencies			[1]
Stockholders' equity:
Preferred stock, $1 par value; 1,000 shares authorized, none issued	0	0	[1]
Common stock, $1 par value; 60,000 shares authorized, 26,677 shares issued and outstanding in 2016 and 26,240 shares in 2015	26,677,000	26,240,000	[1]
Paid-in capital	107,127,000	105,516,000	[1]
Retained earnings	125,673,000	128,153,000	[1]
Accumulated other comprehensive loss	(19,640,000)	(21,772,000)
Total stockholders' equity	239,837,000	238,137,000	[1]
Total liabilities and stockholder's equity	$ 347,496,000	$ 345,346,000	[1]

[1] Derived from December 26, 2015 audited financial statements