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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($)
$ in Thousands
Common Stock
Additional Paid-In Capital
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Total
Balance at Mar. 31, 2019 $ 226 $ 65,094 $ 70,428 $ (2,626) $ 133,122
Balance (in shares) at Mar. 31, 2019 22,607,712        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income     12,854   12,854
Cash dividend on common stock     (3,179)   (3,179)
Exercise of stock options $ 1 226     $ 227
Exercise of stock options (in shares) 58,000       58,000
Restricted stock grants (in shares) 82,673        
Stock-based compensation expense   317     $ 317
Other comprehensive income, net       2,465 2,465
Balance at Dec. 31, 2019 $ 227 65,637 80,103 (161) 145,806
Balance (in shares) at Dec. 31, 2019 22,748,385        
Balance at Sep. 30, 2019 $ 227 65,559 77,112 221 143,119
Balance (in shares) at Sep. 30, 2019 22,748,385        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income     4,128   4,128
Cash dividend on common stock     (1,137)   (1,137)
Exercise of stock options   10     10
Stock-based compensation expense   68     68
Other comprehensive income, net       (382) (382)
Balance at Dec. 31, 2019 $ 227 65,637 80,103 (161) 145,806
Balance (in shares) at Dec. 31, 2019 22,748,385        
Balance at Mar. 31, 2020 $ 225 64,649 81,870 2,099 148,843
Balance (in shares) at Mar. 31, 2020 22,544,285        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income     7,058   7,058
Cash dividend on common stock     (3,344)   (3,344)
Exercise of stock options $ 1 33     $ 34
Exercise of stock options (in shares) 14,000       14,000
Stock repurchased $ (3) (1,444)     $ (1,447)
Stock repurchased (in shares) (295,900)        
Restricted stock grants (in shares) 90,763        
Restricted stock cancelled (in shares) (7,913)        
Stock-based compensation expense   301     301
Other comprehensive income, net       429 429
Balance at Dec. 31, 2020 $ 223 63,539 85,584 2,528 151,874
Balance (in shares) at Dec. 31, 2020 22,345,235        
Balance at Sep. 30, 2020 $ 222 63,420 82,666 2,738 149,046
Balance (in shares) at Sep. 30, 2020 22,336,235        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income     4,035   4,035
Cash dividend on common stock     (1,117)   (1,117)
Restricted stock grants $ 1 24     25
Restricted stock grants (in shares) 9,000        
Stock-based compensation expense   95     95
Other comprehensive income, net       (210) (210)
Balance at Dec. 31, 2020 $ 223 $ 63,539 $ 85,584 $ 2,528 $ 151,874
Balance (in shares) at Dec. 31, 2020 22,345,235