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UNAUDITED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($)
Total
Preferred Stock
Common Stock
Treasury Stock Amount
Additional Paid in Capital
Retained Earnings
Stockholders’ equity, December 30, 2018 at Dec. 31, 2017 $ 39,134,679 $ 0 $ 87,594 $ 0 $ 37,675,329 $ 1,371,756
Stockholders’ equity, December 31, 2018 (in shares) at Dec. 31, 2017     8,759,376      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation 67,029       67,029  
Exercise of common stock options and warrants (in shares)     4,589      
Exercise of common stock options and warrants (7,500)   $ 46   (7,546)  
Cash dividend declared (2,189,844)         (2,189,844)
Net income (loss) 2,465,571         2,465,571
Stockholders’ equity, March 31, 2019 at Apr. 01, 2018 39,469,935 0 $ 87,640 0 37,734,812 1,647,483
Stockholders’ equity, March 31, 2019 (in shares) at Apr. 01, 2018     8,763,965      
Stockholders’ equity, December 30, 2018 at Dec. 30, 2018 65,702,013 0 $ 102,273 (24,027) 57,624,379 7,999,388
Stockholders’ equity, December 31, 2018 (in shares) at Dec. 30, 2018     10,227,247      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation 320,084       320,084  
Cancellation of restricted shares (in shares)     (2,250)      
Cancellation of restricted shares 0   $ (23)   23  
Exercise of common stock options and warrants (in shares)     4,916      
Exercise of common stock options and warrants 0   $ 49   (49)  
Change in accounting principal - operating leases (200,607)         (200,607)
Cash dividend declared (3,068,847)         (3,068,847)
Net income (loss) 2,496,024         2,496,024
Stockholders’ equity, March 31, 2019 at Mar. 31, 2019 $ 65,248,667 $ 0 $ 102,299 $ (24,027) $ 57,944,437 $ 7,225,958
Stockholders’ equity, March 31, 2019 (in shares) at Mar. 31, 2019     10,229,913