CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net loss	$ (1,098,505)	$ 22,521
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Deferred income taxes	(616,026)	284,220
Depreciation and amortization	106,625	58,104
Provision for inventory obsolescence	0	(260,000)
Amortization of debt discount	44,401	26,791
Amortization of debt expense	83,791	54,161
Increase in cash surrender value of life insurance	0	2,011
Proceeds from life insurance policy	0	(300,029)
Warrants issued in exchange for services	26,477	0
Change in fair value of common stock warrant	(249,057)	63,695
Non-cash stock-based compensation	46,277	46,494
Changes in assets and liabilities:
Decrease in accounts receivable	834,149	1,130,256
Decrease in unbilled government receivables	18,127	0
(Increase) decrease in inventories	(1,540,862)	584,560
Decrease (increase) in prepaid expenses & other	118,741	(50,638)
Increase in other assets	0	(42,100)
Increase (decrease) in accounts payable	532,296	(1,161,438)
Increase (decrease) in accrued payroll, vacation pay & withholdings	36,732	(26,629)
Decrease in deferred revenues	(18,021)	(11,063)
Increase (decrease) increase in progress billings	405,551	(424,202)
Increase in accrued expenses	362,786	613,335
Net cash (used in) provided by operating activities	(906,518)	610,049
Cash flows from investing activities:
Purchases of equipment	(45,308)	(79,772)
Net cash used in investing activities	(45,308)	(79,772)
Cash flows from financing activities:
Proceeds from the exercise of stock options	104,430	20,464
Proceeds from the sale of common stock	300,002	0
Proceeds from long-term debt	600,000	0
Expenses associated with long-term debt	(111,340)	0
Repayment of long-term debt	(127,929)	(39,405)
Repayment of capitalized lease obligations	(30,262)	(15,685)
Proceeds from life insurance policy	0	312,683
Net cash provided by financing activities	734,901	278,057
Net (decrease) increase in cash and cash equivalents	(216,925)	808,334
Cash and cash equivalents at beginning of period	413,195	123,955
Cash and cash equivalents at end of period	196,270	932,289
Taxes paid	0	0
Interest paid	181,903	173,882
Capitalized lease obligations	$ 0	$ 67,772