CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net (loss) income	$ (413,000)	$ 2,138,000
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Share-based compensation expense	196,000	118,000
Bond premium amortization	2,000	0
Depreciation and amortization	214,000	202,000
Loss on disposal of property and equipment	0	4,000
Gain on sale of marketable securities	0	(45,000)
Deferred income	0	(64,000)
Changes in operating assets and liabilities:
Accounts receivable.	1,175,000	(2,000)
Inventories	(1,206,000)	(935,000)
Costs and estimated earnings in excess of billings on uncompleted contracts	(903,000)	468,000
Other current assets	64,000	152,000
Other assets	23,000	6,000
Accounts payable	(17,000)	19,000
Accrued expenses	(318,000)	88,000
Income taxes payable	(22,000)	35,000
Customer advances	75,000	(55,000)
Liability associated with non-renewal of senior officers' contracts	293,000	(868,000)
Net cash (used in) provided by operating activities	(837,000)	1,261,000
Cash flows from investing activities:
Purchase of property and equipment	(352,000)	(127,000)
Sale and disposal of property and equipment	0	10,000
Purchase of marketable securities	(2,000)	(262,000)
Sale of marketable securities	0	156,000
Net cash used in investing activities	(354,000)	(223,000)
Cash flows from financing activities:
Purchase of treasury stock	(710,000)	0
Proceeds from issuance of long-term debt	65,000	0
Proceeds from issuance of note payable-bank	1,000,000	5,790,000
Restricted cash	671,000	0
Stock option exercises	0	1,000
Repayments of long-term debt	(715,000)	(6,876,000)
Net cash provided by (used in) financing activities	311,000	(1,085,000)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(880,000)	(47,000)
Cash and cash equivalents - January 1	1,709,000	1,964,000
CASH AND CASH EQUIVALENTS - September 30	829,000	1,917,000
Supplemental cash flow information:
Cash paid for interest	104,000	155,000
Cash paid for income taxes	$ 95,000	$ 30,000