CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (2,411,937)	$ (2,123,106)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	846,012	681,434
Stock based compensation expense	337,023	622,245
Deferred income taxes	695,762	(524,173)
Provision for contract losses	270,172	887,458
Changes in operating assets and liabilities:
Accounts receivable	572,786	683,394
Costs incurred on uncompleted contracts, in excess of progress billings	(388,267)	(1,056,174)
Inventories - raw materials	19,985	351,236
Other current assets	(75,540)	(1,043,732)
Taxes receivable	1,824,262	(1,628,720)
Other noncurrent assets	212,700	(171,252)
Accounts payable	1,171,600	237,046
Accrued expenses	(822,450)	(139,844)
Accrued taxes payable	72,638	159,987
Deferred revenues	(545,600)	417,283
Net cash provided by (used in) operating activities	1,779,146	(2,646,918)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of property, plant and equipment	(663,185)	(2,682,341)
Net cash used in investing activities	(663,185)	(2,682,341)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from exercised stock options		41,396
Borrowings of short-term debt	500,000
Repayment of long-term debt	(1,366,017)	(1,372,637)
Borrowings of long-term debt		1,918,676
Net cash (used in) provided by financing activities	(866,017)	587,435
Effect of exchange rate on cash and cash equivalents	1,947	24,309
Net increase (decrease) in cash and cash equivalents	251,891	(4,717,515)
Cash and cash equivalents, beginning of period	2,823,485	7,541,000
Cash and cash equivalents, end of period	3,075,376	2,823,485
Cash paid during the year for:
Interest, net of amounts capitalized of $0 and $114,145 in 2013 and 2012	268,351	208,220
Income taxes		764,306
SUPPLEMENTAL INFORMATION - NONCASH INVESTING AND FINANCING TRANSACTIONS:
Common stock issued in conversion of Series A Convertible Preferred Stock (in shares)	1,964,694	2,409,159
Series A Convertible Preferred Stock converted (in shares)	1,502,984	1,843,000
Liability recorded for fair value of an interest rate swap contract in connection with a tax exempt bond	388,982	227,392
Tax on liability recorded for fair value of an interest rate swap contract in connection with a tax exempt bond	0	148,120
Capital lease arrangement for new office equipment	46,378
Placed plant and equipment into service which were under construction		$ 2,100,000
Stock options exercised as broker assisted cashless transactions (in shares)		44,865