INCOME PER COMMON SHARE, Potentially Diluted Securities (Details) - shares	Mar. 31, 2019	Mar. 31, 2018
Potentially Diluted Securities [Abstract]
Potentially diluted securities (in shares)	214,228	478,227
Warrants [Member]
Potentially Diluted Securities [Abstract]
Potentially diluted securities (in shares)	0	250,000
Convertible Preferred Stock [Member]
Potentially Diluted Securities [Abstract]
Potentially diluted securities (in shares)	12,710	12,710
Employee Stock Options [Member]
Potentially Diluted Securities [Abstract]
Potentially diluted securities (in shares)	118,798	112,798
Non-Employee Stock Options [Member]
Potentially Diluted Securities [Abstract]
Potentially diluted securities (in shares)	51,053	51,053
Employee Restricted Stock [Member]
Potentially Diluted Securities [Abstract]
Potentially diluted securities (in shares)	5,000	10,000
Non-Employee Restricted Stock [Member]
Potentially Diluted Securities [Abstract]
Potentially diluted securities (in shares)	26,667	41,666