CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income (loss)	$ (1,643,682)	$ 119,952
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Deferred income taxes	(919,814)	261,572
Depreciation and amortization	160,140	117,376
Allowance for bad debts	0	(1,200)
Provision for inventory obsolescence	0	1,971
Gain on sale of asset	0	(500)
Amortization of debt discount	82,349	40,177
Amortization of debt expense	152,174	81,241
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	47,918	0
Change in fair value of common stock warrant	(268,767)	(66,738)
Non-cash stock-based compensation	62,884	68,324
Changes in assets and liabilities:
Decrease in accounts receivable	1,041,720	817,002
Decrease in unbilled government receivables	728,724	0
Increase in inventories	(1,780,056)	(817,564)
Decrease (increase) in prepaid expenses & other	126,381	(66,572)
Increase in other assets	0	(36,302)
Increase in accounts payable	1,150,140	876,047
Decrease in accrued payroll, vacation pay & withholdings	(70,661)	(34,873)
Decrease in deferred revenues	(13,125)	(17,436)
Increase (decrease) increase in progress billings	0	(424,202)
Decrease in accrued expenses	(527,446)	(90,025)
Net cash (used in) provided by operating activities	(1,671,121)	530,232
Cash flows from investing activities:
Proceeds from the sale of capital asset	0	500
Purchases of equipment	(60,816)	(149,161)
Net cash used in investing activities	(60,816)	(148,661)
Cash flows from financing activities:
Proceeds from the exercise of stock options	104,430	21,749
Proceeds from the sale of common stock	1,000,002	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)	(158,493)
Repayment of capitalized lease obligations	(47,627)	(41,295)
Proceeds from life insurance policy	0	312,683
Net cash provided by financing activities	1,417,536	134,644
Net (decrease) increase in cash and cash equivalents	(314,401)	516,215
Cash and cash equivalents at beginning of period	413,195	123,955
Cash and cash equivalents at end of period	98,794	640,170
Taxes paid	0	0
Interest paid	261,413	269,131
Capitalized lease obligations	$ 0	$ 254,734