XML 37 R57.htm IDEA: XBRL DOCUMENT v3.20.1
Restricted Stock Activity (Detail) - Restricted Stock Awards
3 Months Ended
Mar. 31, 2020
$ / shares
shares
Shares  
Outstanding at beginning of period | shares 72,051
Vested | shares (43,230)
Outstanding at end of period | shares 28,821
Weighted Average Grant Date Fair Value Per Share  
Outstanding at beginning of period | $ / shares $ 21.59
Vested | $ / shares 21.59
Outstanding at end of period | $ / shares $ 21.59