AVERAGE SHARE INFORMATION (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Basic:
Weighted average common shares outstanding (in shares)	7,807,229	9,072,160	8,155,263	9,063,524
Diluted:
Weighted average common shares outstanding (in shares)	7,807,229	9,072,160	8,155,263	9,063,524
Dilutive potential common shares stock options (in shares)	394,368	220,726	376,749	209,580
Weighted average diluted shares outstanding (in shares)	8,201,597	9,292,886	8,532,012	9,273,104
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	655,462	468,253	669,374	477,357
Net Income (Loss) Attributable to Parent	$ 4,220,001	$ 14,537,645	$ 12,828,400	$ (6,965,649)
Earnings Per Share, Basic	$ 0.54	$ 1.60	$ 1.57	$ (0.77)
Earnings Per Share, Diluted	$ 0.51	$ 1.56	$ 1.50	$ (0.75)