CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)
Net sales	$ 48,833,409	$ 61,439,929	$ 114,159,025	$ 122,323,077
Cost of products sold	(38,076,590)	(46,430,039)	(88,308,972)	(93,504,144)
Gross margin	10,756,819	15,009,890	25,850,053	28,818,933
Product development expense	(756,171)	(2,174,803)	(1,531,615)	(4,414,579)
Selling and administrative expenses	(7,960,307)	(8,076,501)	(17,858,438)	(16,474,766)
Goodwill impairment loss	(4,002,548)		(4,002,548)	0
Restructuring costs	(280,000)	(1,799,293)	(280,000)	(2,635,987)
Operating profit (loss)	(2,242,207)	2,959,293	2,177,452	5,293,601
Interest expense	(606,553)	(261,618)	(1,434,217)	(554,158)
Other income	416,917	586,823	603,322	600,748
Income (loss) before income taxes	(2,431,843)	3,284,498	1,346,557	5,340,191
Income taxes	(543,061)	754,725	339,521	1,239,458
Net income (loss)	$ (1,888,782)	$ 2,529,773	$ 1,007,036	$ 4,100,733
Earnings (loss) per Share:
Basic	$ (0.30)	$ 0.41	$ 0.16	$ 0.66
Diluted	(0.30)	0.40	0.16	0.65
Cash dividends per share:	$ 0.11	$ 0.11	$ 0.22	$ 0.22