CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	6 Months Ended
	Oct. 31, 2016	Oct. 31, 2015
Operating activities:
Net income (loss) from operations	$ 138,220	$ (1,956,498)
Consolidated net income from discontinued operations	0	878,981
Adjustments to reconcile consolidated net income (loss) to net cash provided by operating activities:
Depreciation and amortization	48,695	14,969
Shares based compensation	22,501	1,540,181
Gain on sale of China operations	0	(837,720)
Income on Section 16 settlement	0	(400,000)
Changes in operating assets and liabilities:
Accounts receivable	(324,990)	2,407,532
Costs and estimated earnings in excess of billings on uncompleted contracts	(372,408)	(165,287)
Current assets held for sale	0	(3,853,621)
Prepaid expenses and other current assets	(46,908)	92,677
Other assets	1,999	0
Other assets held for sale	0	(34,523)
Accounts payable and accrued expenses	143,477	(2,653,981)
Current liabilities held for sale	0	2,200,030
Billings in excess of costs and estimated earnings on uncompleted contracts	372,707	203,039
Net cash used in operating activities	(16,707)	(2,564,221)
Investing activities:
Acquisition of property and equipment	(96,475)	0
Proceeds from sale of China operations, net of acquisition cost	0	1,325,744
Net cash (used in) provided by investing activities	(96,475)	1,325,744
Financing activities:
Proceeds from issuance of Series H-1 preferred stock and warrants	0	1,575,000
Borrowings under loan payable obligations	0	7,762
Repayment under loan payable obligations	(52,027)	(10,837)
Repayments under other payable to Zurich	0	(270,000)
Repayments of short term convertible note	0	(4,000)
Net cash (used in) provided by financing activities	(52,027)	1,297,925
Effect of exchange rate changes on cash	0	91,510
Net (decrease) increase in cash and cash equivalents	(165,209)	150,958
Cash and cash equivalents, beginning of the period	2,235,597	2,364,360
Cash and cash equivalents, end of the period	2,070,388	2,515,318
Schedule of non-cash investing and financing activities:
Automobile financing	72,650	0
Declaration on preferred dividend payable	0	4,369,958
Conversion of dividends payable related to make-whole amount to common stock	0	4,104,529
Deemed dividend on conversion of Series H-1 convertible preferred stock to common stock	19,724	703,770
Series F-1 Preferred Stock [Member]
Schedule of non-cash investing and financing activities:
Conversion of dividends payable related to make-whole amount to common stock	0	624,977
Series G-1 Preferred Stock [Member]
Schedule of non-cash investing and financing activities:
Conversion of dividends payable related to make-whole amount to common stock	0	212,113
Series F And F1 Preferred Stock [Member]
Schedule of non-cash investing and financing activities:
Conversion of preferred stock through the issuance of common stock	0	3,292,741
Series G And G1 Preferred Stock [Member]
Schedule of non-cash investing and financing activities:
Conversion of preferred stock through the issuance of common stock	0	1,351,722
Series H Preferred Stock [Member]
Schedule of non-cash investing and financing activities:
Conversion of short term convertible note to Series H preferred stock	0	1,299,000
Conversion of preferred stock through the issuance of common stock	219,450	865,018
Series H-1 Preferred Stock [Member]
Schedule of non-cash investing and financing activities:
Conversion of preferred stock through the issuance of common stock	36,920	0
Deemed dividend on conversion of Series H-1 convertible preferred stock to common stock	$ 19,724	$ 0