CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities:
Net income (loss)	$ 1,309	$ (1,199)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in net loss of joint venture	179	440
Share-based compensation	519	358
Debt forgiveness	(10)
Bad debt expense (credit)	92	(230)
Depreciation and amortization	1,401	1,418
Gain on disposal of property, plant and equipment	(112)	(38)
Changes in assets and liabilities:
Accounts receivable	(1,297)	594
Inventory	(3)	(44)
Costs and estimated earnings in excess of billings on uncompleted contracts	(1,642)	(158)
Prepaid expenses and other current assets	(60)	183
Other assets	103	1
Accounts payable and accrued liabilities	1,587	(567)
Deferred revenues	(260)	(35)
Billings in excess of costs and estimated earnings on uncompleted contracts	(1,499)	1,133
Net cash provided by operating activities	307	1,856
Cash flows from investing activities:
Purchases of property, plant and equipment	(1,520)	(1,772)
Proceeds from sale of property, plant and equipment	150	55
Cash paid for patents	(43)	(18)
Cash paid for exclusive product rights	(125)
Cash paid for capitalized software		(65)
Cash received on notes receivable	50	14
Net cash used in investing activities	(1,488)	(1,786)
Cash flows from financing activities:
Funds used for purchase of our common stock	(48)	(818)
Proceeds from bank term loan		800
Repayments of long-term debt	(1,552)	(1,201)
Net cash (used in) provided by financing activities	(1,600)	(1,219)
Change in cash and equivalents	(2,781)	(1,149)
Cash and cash equivalents, beginning of period	4,979	3,730
Cash and cash equivalents, end of period	2,198	2,581
Supplemental schedule of significant noncash transactions:
Property, plant and equipment acquired via capital lease	1,200
Shares of common stock surrendered by employees related to payroll taxes on vested restricted stock awards	$ 41	$ 2