CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income (loss)	$ 376,596	$ (334,394)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Deferred income taxes	4,928	(138,903)
Depreciation and amortization	117,376	135,293
Allowance for bad debts	(1,200)
Provision for inventory obsolescence	1,971
Gain on sale of asset	(500)	(3,600)
Amortization of debt discount	40,177	33,678
Amortization of debt expense	81,241	33,098
Increase in cash surrender value of life insurance	2,011
Gain on proceeds from life insurance policy	(300,029)
Change in fair value of common stock warrant	(66,738)	129,684
Non-cash stock-based compensation	68,324	75,771
Changes in assets and liabilities:
Decrease (increase) in accounts receivable	817,002	(675,089)
Decrease in unbilled government receivables		821
Increase in inventories	(817,564)	(1,086,742)
(Increase) decrease in prepaid expenses & other	(66,572)	14,719
(Increase) decrease in other assets	(36,302)	11,056
Increase in accounts payable	398,237	740,385
(Decrease) increase in accrued payroll, vacation pay & withholdings	(34,873)	45,458
Decrease in deferred revenues	(17,436)	(30,668)
Decrease increase in progress billings	(424,202)	(69,412)
Increase in accrued expenses	387,785	52,942
Net cash provided by (used in) operating activities	530,232	(1,065,903)
Cash flows from investing activities:
Proceeds from the sale of capital asset	500	3,600
Purchases of equipment	(149,161)	(106,070)
Net cash used in investing activities	(148,661)	(102,470)
Cash flows from financing activities:
Proceeds from the issuance of common stock		50,000
Proceeds from the exercise of stock options	21,749	15,315
Proceeds from long-term debt		2,500,000
Expenses associated with long-term debt		(527,796)
Repayment of long-term debt	(158,493)
Repayment of capitalized lease obligations	(41,295)	(2,108)
Proceeds from borrowings from line of credit		400,000
Repayment of line of credit		(1,000,000)
Proceeds from life insurance policy	312,683
Net cash provided by financing activities	134,644	1,435,411
Net increase in cash and cash equivalents	516,215	267,038
Cash and cash equivalents at beginning of period	123,955	173,048
Cash and cash equivalents at end of period	640,170	440,086
Taxes paid	0	0
Interest paid	269,131	136,408
Capitalized lease obligations	$ 254,734	$ 26,387