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UNAUDITED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) | Total | Discontinued Operations, Held-for-sale Instaff | Preferred Stock | Common Stock | Treasury Stock Amount | Additional Paid in Capital | Retained Earnings | Accumulated Other Comprehensive (Loss)/Income
--- | --- | --- | --- | --- | --- | --- | --- | ---
Stockholders’ equity, beginning balance at Dec. 27, 2020 | $ 65,457,752 |  | $ 0 | $ 103,284 | $ (29,450) | $ 60,457,044 | $ 5,049,748 | $ (122,874)
Stockholders’ equity, beginning balance (in shares) at Dec. 27, 2020 |  |  |  | 10,328,379 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Share-based compensation | 220,611 | $ 15,396 |  |  |  | 220,611 |  |
Share issuance cost | (10,000) |  |  |  |  | (10,000) |  |
Issuance of restricted shares (in shares) |  |  |  | 7,518 |  |  |  |
Issuance of restricted shares | 0 |  |  | $ 75 |  | (75) |  |
Exercise of common stock options (shares) |  |  |  | 213 |  |  |  |
Exercise of common stock options | 0 |  |  | $ 2 |  | (2) |  |
Cash dividend declared | (1,033,597) |  |  |  |  |  | (1,033,597) |
Net income | 711,797 |  |  |  |  |  | 711,797 |
Other comprehensive loss | 32,215 |  |  |  |  |  |  | 32,215
Stockholders’ equity, ending balance at Mar. 28, 2021 | 65,394,174 |  | 0 | $ 103,361 | (29,450) | 60,682,974 | 4,727,948 | (90,659)
Stockholders’ equity, ending balance (in shares) at Mar. 28, 2021 |  |  |  | 10,336,110 |  |  |  |
Stockholders’ equity, beginning balance at Dec. 27, 2020 | $ 65,457,752 |  | 0 | $ 103,284 | (29,450) | 60,457,044 | 5,049,748 | (122,874)
Stockholders’ equity, beginning balance (in shares) at Dec. 27, 2020 |  |  |  | 10,328,379 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Exercise of common stock options (shares) | 600 |  |  |  |  |  |  |
Net income | $ 8,798,244 |  |  |  |  |  |  |
Stockholders’ equity, ending balance at Sep. 26, 2021 | 72,030,726 |  | 0 | $ 104,013 | (37,892) | 61,487,340 | 10,531,878 | (54,613)
Stockholders’ equity, ending balance (in shares) at Sep. 26, 2021 |  |  |  | 10,401,312 |  |  |  |
Stockholders’ equity, beginning balance at Mar. 28, 2021 | 65,394,174 |  | 0 | $ 103,361 | (29,450) | 60,682,974 | 4,727,948 | (90,659)
Stockholders’ equity, beginning balance (in shares) at Mar. 28, 2021 |  |  |  | 10,336,110 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Share-based compensation | 214,606 | 10,774 |  |  |  | 214,606 |  |
Issuance of restricted shares (in shares) |  |  |  | 7,230 |  |  |  |
Issuance of restricted shares | 0 |  |  | $ 72 |  | (72) |  |
Cash dividend declared | (1,034,334) |  |  |  |  |  | (1,034,334) |
Net income | 3,442,838 |  |  |  |  |  | 3,442,838 |
Other comprehensive loss | 29,814 |  |  |  |  |  |  | 29,814
Stockholders’ equity, ending balance at Jun. 27, 2021 | 68,057,872 |  | 0 | $ 103,433 | (29,450) | 60,908,282 | 7,136,452 | (60,845)
Stockholders’ equity, ending balance (in shares) at Jun. 27, 2021 |  |  |  | 10,343,340 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Share-based compensation |  | 17,959 |  |  |  | 406,369 |  |
Share issuance cost | (3,500) |  |  |  |  | (3,500) |  |
Issuance of restricted shares (in shares) |  |  |  | 42,814 |  |  |  |
Issuance of restricted shares | $ (8,442) |  |  | $ 428 | (8,442) | (428) |  |
Issuance of ESPP Shares (shares) | 14,758 |  |  |  |  |  |  |
Issuance of ESPP Shares | $ 154,922 |  |  | $ 148 |  | 154,774 |  |
Exercise of common stock options (shares) |  |  |  | 400 |  |  |  |
Exercise of common stock options | 3,888 |  |  | $ 4 |  | 3,884 |  |
Cash dividend declared | (1,248,183) |  |  |  |  |  | (1,248,183) |
Net income | 4,643,609 |  |  |  |  |  | 4,643,609 |
Other comprehensive loss | 6,232 |  |  |  |  |  |  | 6,232
Stockholders’ equity, ending balance at Sep. 26, 2021 | 72,030,726 |  | 0 | $ 104,013 | (37,892) | 61,487,340 | 10,531,878 | (54,613)
Stockholders’ equity, ending balance (in shares) at Sep. 26, 2021 |  |  |  | 10,401,312 |  |  |  |
Stockholders’ equity, beginning balance at Dec. 26, 2021 | 76,592,184 |  | 0 | $ 104,252 | (37,892) | 61,875,406 | 14,592,087 | 58,331
Stockholders’ equity, beginning balance (in shares) at Dec. 26, 2021 |  |  |  | 10,425,210 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Share-based compensation | 211,449 | $ 7,697 |  |  |  | 211,449 |  |
Fully vested shares related to the sale of discontinued operations | 35,093 |  |  |  |  | 35,093 |  |
Issuance of restricted shares (in shares) |  |  |  | 5,795 |  |  |  |
Issuance of restricted shares | 0 |  |  | $ 58 |  | (58) |  |
Issuance of ESPP Shares (shares) |  |  |  | 14,203 |  |  |  |
Issuance of ESPP Shares | 169,136 |  |  | $ 142 |  | 168,994 |  |
Cash dividend declared | (1,564,651) |  |  |  |  |  | (1,564,651) |
Net income | 15,799,783 |  |  |  |  |  | 15,799,783 |
Other comprehensive loss | (58,331) |  |  |  |  |  |  | (58,331)
Stockholders’ equity, ending balance at Mar. 27, 2022 | 91,192,360 |  | 0 | $ 104,452 | (37,892) | 62,298,581 | 28,827,219 | 0
Stockholders’ equity, ending balance (in shares) at Mar. 27, 2022 |  |  |  | 10,445,208 |  |  |  |
Stockholders’ equity, beginning balance at Dec. 26, 2021 | 76,592,184 |  | 0 | $ 104,252 | (37,892) | 61,875,406 | 14,592,087 | 58,331
Stockholders’ equity, beginning balance (in shares) at Dec. 26, 2021 |  |  |  | 10,425,210 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income | 23,628,670 |  |  |  |  |  |  |
Stockholders’ equity, ending balance at Sep. 25, 2022 | 96,893,684 |  | 0 | $ 104,999 | (37,892) | 63,317,793 | 33,508,784 | 0
Stockholders’ equity, ending balance (in shares) at Sep. 25, 2022 |  |  |  | 10,499,827 |  |  |  |
Stockholders’ equity, beginning balance at Mar. 27, 2022 | 91,192,360 |  | 0 | $ 104,452 | (37,892) | 62,298,581 | 28,827,219 | 0
Stockholders’ equity, beginning balance (in shares) at Mar. 27, 2022 |  |  |  | 10,445,208 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Share-based compensation | 242,166 |  |  |  |  | 242,166 |  |
Share issuance cost (in shares) |  |  |  | 0 |  |  |  |
Share issuance cost | (10,910) |  |  | $ 0 |  | (10,910) |  |
Issuance of restricted shares (in shares) |  |  |  | 13,639 |  |  |  |
Issuance of restricted shares | 0 |  |  | $ 136 |  | (136) |  |
Issuance of ESPP Shares (shares) |  |  |  | 22,709 |  |  |  |
Issuance of ESPP Shares | 249,969 |  |  | $ 227 |  | 249,742 |  |
Exercise of common stock options (shares) |  |  |  | 650 |  |  |  |
Exercise of common stock options | 6,319 |  |  | $ 7 |  | 6,312 |  |
Cash dividend declared | (1,572,331) |  |  |  |  |  | (1,572,331) |
Net income | 3,176,414 |  |  |  |  |  | 3,176,414 |
Stockholders’ equity, ending balance at Jun. 26, 2022 | 93,283,987 |  | 0 | $ 104,822 | (37,892) | 62,785,755 | 30,431,302 | 0
Stockholders’ equity, ending balance (in shares) at Jun. 26, 2022 |  |  |  | 10,482,206 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Share-based compensation | 411,288 |  |  |  |  | 411,288 |  |
Issuance of restricted shares (in shares) |  |  |  | 6,315 |  |  |  |
Issuance of restricted shares | $ 0 |  |  | $ 63 | 0 | (63) |  |
Issuance of ESPP Shares (shares) | 10,956 |  |  |  |  |  |  |
Issuance of ESPP Shares | $ 117,525 |  |  | $ 110 |  | 117,415 |  |
Exercise of common stock options (shares) |  |  |  | 350 |  |  |  |
Exercise of common stock options | 3,402 |  |  | $ 4 |  | 3,398 |  |
Cash dividend declared | (1,574,991) |  |  |  |  |  | (1,574,991) |
Net income | 4,652,473 |  |  |  |  |  | 4,652,473 |
Stockholders’ equity, ending balance at Sep. 25, 2022 | $ 96,893,684 |  | $ 0 | $ 104,999 | $ (37,892) | $ 63,317,793 | $ 33,508,784 | $ 0
Stockholders’ equity, ending balance (in shares) at Sep. 25, 2022 |  |  |  | 10,499,827 |  |  |  |

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