Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net loss	$ (304,179)	$ (1,643,682)
Adjustments to reconcile net loss to net cash used in operating activities:
Deferred income taxes	50,503	(919,814)
Depreciation and amortization	153,818	160,140
Amortization of debt discount	75,707	82,349
Amortization of deferred financing costs, net	81,987	152,174
Loss on extinguishment of debt	26,600	0
Warrants issued in exchange for services	0	47,918
Change in fair value of common stock warrants	272,499	(268,767)
Non-cash interest expense associated with conversion of note	21,003	0
Non-cash stock-based compensation	48,519	62,884
Changes in assets and liabilities:
(Increase) decrease in accounts receivable, net	(572,034)	1,041,720
Decrease in unbilled government receivables	0	728,724
Decrease (increase) in inventories, net	1,731,581	(1,780,056)
(Increase) decrease in prepaid expenses & other	(28,077)	126,381
(Decrease) increase in accounts payable	(2,038,760)	1,150,140
Decrease in accrued payroll, vacation pay & withholdings	(48,090)	(70,661)
Increase (decrease) in deferred revenues	107,000	(13,125)
Increase in progress billings	795,050	0
(Decrease) increase in accrued expenses	(98,651)	(527,446)
Net cash provided by (used in) operating activities	274,476	(1,671,121)
Cash flows from investing activities:
Purchases of equipment	(11,595)	(60,816)
Net cash used in investing activities	(11,595)	(60,816)
Cash flows from financing activities:
Proceeds from note payable – related party	100,000	0
Proceeds from the sale of common stock	0	1,000,002
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	23,370	104,430
Repayment of long-term debt	(424,245)	(127,929)
Repayment of capitalized lease obligations	(55,956)	(47,627)
Net cash (used in) provided by financing activities	(356,831)	1,417,536
Net decrease in cash and cash equivalents	(93,950)	(314,401)
Cash and cash equivalents at beginning of period	310,297	413,195
Cash and cash equivalents at end of period	216,347	98,794
Supplemental cash flow information:
Taxes paid	0	0
Interest paid	276,546	261,413
Supplemental non-cash information:
Conversion of debt to equity	700,000	0
Conversion of accrued interest into equity	$ 37,400	$ 0