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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
Total
Preferred Stock
Common Stock
Treasury Stock Amount
Additional Paid in Capital
Retained Earnings
Stockholders’ equity, beginning of period at Dec. 25, 2016 $ 40,488,454 $ 0 $ 86,685 $ 0 $ 36,142,688 $ 4,259,081
Stockholders’ equity (in shares), beginning of period at Dec. 25, 2016     8,668,485      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation 447,301       447,301  
Issuance of shares, net of offering costs (in shares)     70,670      
Issuance of shares, net of offering costs 992,500   $ 707   991,793  
Exercise of common stock options and warrants (shares)     20,221      
Exercise of common stock options and warrants 93,749   $ 202   93,547  
Option cancellation agreement 0          
Cash dividends declared (8,735,759)         (8,735,759)
Net income 5,848,434         5,848,434
Stockholders’ equity, end of period at Dec. 31, 2017 39,134,679 0 $ 87,594 0 37,675,329 1,371,756
Stockholders’ equity (in shares), end of period at Dec. 31, 2017     8,759,376      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation 1,069,482       1,069,482  
Issuance of shares, net of offering costs (in shares)     1,293,750      
Issuance of shares, net of offering costs 21,360,138   $ 12,938   21,347,200  
Issuance of restricted shares, net of 828 shares of treasury stock (shares)     41,172      
Issuance of restricted shares, net of 828 shares of treasury stock (24,027)   $ 412 (24,027) (412)  
Exercise of common stock options and warrants (shares)     132,949      
Exercise of common stock options and warrants 869,278   $ 1,329   867,949  
Option cancellation agreement (3,335,169)       (3,335,169)  
Cash dividends declared (10,921,909)         (10,921,909)
Net income 17,549,541         17,549,541
Stockholders’ equity, end of period at Dec. 30, 2018 65,702,013 0 $ 102,273 (24,027) 57,624,379 7,999,388
Stockholders’ equity (in shares), end of period at Dec. 30, 2018     10,227,247      
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Share-based compensation 952,738       952,738  
Cancellation of restricted shares (shares)     (2,250)      
Cancellation of restricted shares 0   $ (23)   23  
Issuance of shares, net of offering costs (in shares)     47,403      
Issuance of shares, net of offering costs 1,000,000   $ 474   999,526  
Exercise of common stock options and warrants (shares)     36,836      
Exercise of common stock options and warrants 38,199   $ 369 (3,291) 41,121  
Option cancellation agreement 0          
Change in accounting principal - operating leases | Accounting Standards Update 2016-02 (200,608)         (200,608)
Cash dividends declared (12,282,342)         (12,282,342)
Net income 13,246,990         13,246,990
Stockholders’ equity, end of period at Dec. 29, 2019 $ 68,456,990 $ 0 $ 103,093 $ (27,318) $ 59,617,787 $ 8,763,428
Stockholders’ equity (in shares), end of period at Dec. 29, 2019     10,309,236