Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2017	Mar. 31, 2017
Allowance for doubtful accounts receivable, net	$ 2,299,260	$ 132,583
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common Class A [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000	100,000
Common stock, shares issued
Common stock, shares outstanding
Common Class B [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	38,282,028	38,259,303
Common stock, shares outstanding	38,282,028	38,259,303