Joint Venture (Details) - USD ($)	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Net sales	$ 4,612,505	$ 3,664,900
Gross profit	366,307	939,947
Net loss	(784,927)	(121,206)
Total current assets	11,740,633	17,237,635
Total assets	31,066,085	35,671,149
Total current liabilities	$ 6,024,586	$ 7,359,434