Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net loss	$ (158,246)	$ (1,098,505)
Adjustments to reconcile net loss to net cash used in operating activities:
Deferred income taxes	(7,519)	(616,026)
Depreciation and amortization	104,365	106,625
Amortization of debt discount	48,587	44,401
Amortization of deferred financing costs	54,160	83,791
Loss on extinguishment of debt	26,600	0
Warrants issued in exchange for services	0	26,477
Change in fair value of common stock warrants	42,773	(249,057)
Non-cash interest expense associated with conversion of note	21,003	0
Non-cash stock-based compensation	32,161	46,277
Changes in assets and liabilities:
(Increase) decrease in accounts receivable, net	(810,779)	834,149
Decrease in unbilled government receivables	0	18,127
Decrease (increase) in inventories, net	1,529,141	(1,540,862)
(Increase) decrease in prepaid expenses & other	(31,144)	118,741
(Decrease) increase in accounts payable	(1,453,239)	532,296
(Decrease) increase in accrued payroll, vacation pay & withholdings	(66,664)	36,732
Increase (decrease) in deferred revenues	4,635	(18,021)
Increase in progress billings	795,050	405,551
(Decrease) increase in accrued expenses	(117,484)	362,786
Net cash provided by (used in) operating activities	13,400	(906,518)
Cash flows from investing activities:
Purchases of equipment	(11,226)	(45,308)
Net cash used in investing activities	(11,226)	(45,308)
Cash flows from financing activities:
Proceeds from note payable – related party	100,000	0
Proceeds from the sale of common stock	0	300,002
Proceeds from the issuance of debt	0	600,000
Expenses associated with the issuance of debt	0	(111,340)
Proceeds from the exercise of stock options	0	104,430
Repayment of long-term debt	(229,750)	(127,929)
Repayment of capitalized lease obligations	(36,970)	(30,262)
Net cash (used in) provided by financing activities	(166,720)	734,901
Net decrease in cash and cash equivalents	(164,546)	(216,925)
Cash and cash equivalents at beginning of period	310,297	413,195
Cash and cash equivalents at end of period	145,751	196,270
Supplemental cash flow information:
Taxes paid	0	0
Interest paid	192,837	181,903
Supplemental non-cash information:
Conversion of debt to equity	700,000	0
Conversion of accrued interest into equity	$ 37,400	$ 0