CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Oct. 31, 2016	Apr. 30, 2016
Current assets:
Cash and cash equivalents	$ 2,070,388	$ 2,235,597
Accounts receivable, net of allowance of $92,000	3,211,144	2,886,154
Costs and estimated earnings in excess of billings on uncompleted contracts	729,618	357,210
Prepaid expenses and other current assets	113,164	66,256
Total current assets	6,124,314	5,545,217
Property and equipment, net	358,230	237,800
Other assets	19,163	21,162
Total assets	6,501,707	5,804,179
Current liabilities:
Current portion of loans payable	58,139	53,996
Accounts payable and accrued expenses	2,215,242	2,071,765
Billings in excess of costs and estimated earnings on uncompleted contracts	1,730,996	1,358,289
Total current liabilities	4,004,377	3,484,050
Loans payable, net of current portion	111,305	94,825
Total liabilities	4,115,682	3,578,875
Commitments and contingencies
Stockholders' equity
Preferred stock
Common stock - $0.0001 par value, 100,000,000 shares authorized, 2,868,659 and 2,691,055 shares issued and outstanding as of October 31, 2016 and April 30, 2016, respectively	287	269
Additional paid-in capital	86,219,242	85,940,389
Accumulated deficit	(84,702,444)	(84,820,940)
Total stockholders' equity	2,386,025	2,225,304
Total liabilities and equity	6,501,707	5,804,179
Convertible Series H [Member]
Stockholders' equity
Preferred stock	186,812	406,262
Convertible Series H-1 [Member]
Stockholders' equity
Preferred stock	$ 682,128	$ 699,324

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.