CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net income (loss)	$ 339	$ (1,806)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in net loss of joint venture	140	316
Share-based compensation	172	45
Debt forgiveness	(10)	0
Bad debt expense (credit)	92	(225)
Depreciation and amortization	927	958
Gain on disposal of property, plant and equipment	(52)	(16)
Changes in assets and liabilities:
Accounts receivable	(432)	1,351
Inventory	(22)	56
Costs and estimated earnings in excess of billings on uncompleted contracts	(243)	(27)
Prepaid expenses and other current assets	199	45
Other assets	73	(5)
Accounts payable and accrued liabilities	892	(2,327)
Deferred revenues	(260)	5
Billings in excess of costs and estimated earnings on uncompleted contracts	(330)	275
Net cash provided by (used in) operating activities	1,690	(1,241)
Cash flows from investing activities:
Purchases of property, plant and equipment	(1,250)	(1,093)
Proceeds from sale of property, plant and equipment	72	33
Cash paid for patents	(40)	(17)
Cash paid for exclusive product rights	(125)	0
Cash paid for capitalized software	0	(35)
Repayments on (cash paid for) notes receivable	50	9
Net cash used in investing activities	(1,293)	(1,103)
Cash flows from financing activities:
Funds used for purchase of our common stock	(48)	(818)
Proceeds from bank term loan	0	800
Repayments of long-term debt	(1,223)	(605)
Net cash (used in) provided by financing activities	(1,271)	(623)
Change in cash and equivalents	(874)	(2,967)
Cash and cash equivalents, beginning of period	4,979	3,730
Cash and cash equivalents, end of period	4,105	763
Supplemental schedule of significant noncash transactions:
Property, plant and equipment acquired via capital lease	1,200	0
Shares of common stock surrendered by employees related to payroll taxes on vested restricted stock awards	$ 41	$ 2