AVERAGE SHARE INFORMATION (Details) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Basic:
Weighted average common shares outstanding (in shares)	8,657,675	9,043,190	8,624,617	9,225,205
Diluted:
Weighted average common shares outstanding (in shares)	8,657,675	9,043,190	8,624,617	9,225,205
Dilutive potential common shares stock options (in shares)	36,376	165,618	62,308	165,828
Weighted average diluted shares outstanding (in shares)	8,694,051	9,208,808	8,686,925	9,391,033
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	848,245	558,620	842,471	595,724
Net Income (Loss) Attributable to Parent	$ 14,751,374	$ 18,489,999	$ 57,569,828	$ 62,318,675	$ 110,833,458
Earnings Per Share, Basic	$ 1.70	$ 2.04	$ 6.68	$ 6.76
Earnings Per Share, Diluted	$ 1.70	$ 2.01	$ 6.63	$ 6.64