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CONSOLIDATED STATEMENTS OF EQUITY - USD ($)
$ in Thousands
Common Stock
Additional Paid-In Capital
Retained Earnings
Accumulated Other Comprehensive Income (Loss)
Total
Balance at Mar. 31, 2018 $ 226 $ 64,871 $ 56,552 $ (4,748) $ 116,901
Balance (in shares) at Mar. 31, 2018 22,570,179        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income     8,671   8,671
Cash dividends on common stock ($0.035, $0.070, 0.045 and $0.090 per share for three and six months ended September 30, 2018 and 2019 respectively)     (1,581)   (1,581)
Exercise of stock options   151     $ 151
Exercise of stock options (in shares) 28,533       28,533
Stock-based compensation expense   22     $ 22
Other comprehensive income (loss), net       (1,754) (1,754)
Balance at Sep. 30, 2018 $ 226 65,044 63,642 (6,502) 122,410
Balance (in shares) at Sep. 30, 2018 22,598,712        
Balance at Jun. 30, 2018 $ 226 64,882 60,204 (5,484) 119,828
Balance (in shares) at Jun. 30, 2018 22,570,179        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income     4,229   4,229
Cash dividends on common stock ($0.035, $0.070, 0.045 and $0.090 per share for three and six months ended September 30, 2018 and 2019 respectively)     (791)   (791)
Exercise of stock options   151     151
Exercise of stock options (in shares) 28,533        
Stock-based compensation expense   11     11
Other comprehensive income (loss), net       (1,018) (1,018)
Balance at Sep. 30, 2018 $ 226 65,044 63,642 (6,502) 122,410
Balance (in shares) at Sep. 30, 2018 22,598,712        
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     8,726   8,726
Cash dividends on common stock ($0.035, $0.070, 0.045 and $0.090 per share for three and six months ended September 30, 2018 and 2019 respectively)     (2,042)   (2,042)
Exercise of stock options $ 1 216     $ 217
Exercise of stock options (in shares) 58,000       58,000
Restricted stock grants (in shares) 82,673        
Stock-based compensation expense   249     $ 249
Other comprehensive income (loss), net       2,847 2,847
Balance at Sep. 30, 2019 $ 227 65,559 77,112 221 143,119
Balance (in shares) at Sep. 30, 2019 22,748,385        
Balance at Jun. 30, 2019 $ 226 65,326 73,602 (491) 138,663
Balance (in shares) at Jun. 30, 2019 22,705,385        
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income     4,534   4,534
Cash dividends on common stock ($0.035, $0.070, 0.045 and $0.090 per share for three and six months ended September 30, 2018 and 2019 respectively)     (1,024)   (1,024)
Exercise of stock options $ 1 164     165
Exercise of stock options (in shares) 43,000        
Stock-based compensation expense   69     69
Other comprehensive income (loss), net       712 712
Balance at Sep. 30, 2019 $ 227 $ 65,559 $ 77,112 $ 221 $ 143,119
Balance (in shares) at Sep. 30, 2019 22,748,385