Condensed Consolidated Statements of Cash Flows (unaudited) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net earnings	$ 549,000	$ 202,000
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	42,000	40,000
Bad debt expense (recoveries)	6,000	(46,000)
Amortization of unearned compensation	20,000	19,000
Issuance of long term asset	(35,000)	0
Changes in current assets & liabilities
Accounts receivable	(653,000)	(415,000)
Inventory	1,048,000	1,191,000
Prepaid expenses & other	(314,000)	(8,000)
Accounts payable	(334,000)	966,000
Due to/from subcontractor	890,000	(1,264,000)
Accrued expenses	305,000	(168,000)
Net cash provided by operating activities	1,524,000	517,000
Cash used in investing activities:
Additions to plant & equipment	(14,000)	(20,000)
Net cash used in investing activities	(14,000)	(20,000)
Cash used in financing activities:
Repayments - note payable	(2,240,000)	(515,000)
Proceeds from shares issued, options exercised and purchase plan	3,000	18,000
Net cash used in financing activities	(2,237,000)	(497,000)
Net decrease in cash	(727,000)	0
Cash at beginning of period	768,000	221,000
Cash at end of period	41,000	221,000
Supplemental cash flow disclosure:
Interest paid	37,000	30,000
Taxes paid	$ 0	$ 1,000