CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income	$ 1,246	$ 339
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Equity in net (income) loss of joint venture	(1)	140
Share-based compensation	275	377
Forgiveness of debt	0	(10)
Bad debt (recovery) provision	(62)	92
Depreciation and amortization	764	927
Gain on disposal of property, plant and equipment	(8)	(52)
Changes in assets and liabilities:
Accounts receivable	454	(432)
Costs and estimated earnings in excess of billings on uncompleted contracts	(2,774)	(243)
Prepaid expenses and other current assets	203	199
Other assets	13	73
Inventory	(67)	(22)
Accounts payable and accrued liabilities	(980)	892
Deferred revenues	(44)	(260)
Billings in excess of costs and estimated earnings on uncompleted contracts	107	(330)
Net cash (used in) provided by operating activities	(874)	1,690
Cash flows from investing activities:
Purchases of property, plant and equipment	(122)	(1,250)
Proceeds from sale of property, plant and equipment	8	72
Cash paid for deposits	(290)	0
Cash paid for patents	0	(40)
Cash paid for exclusive product rights	0	(125)
Repayments on notes receivable	3	50
Distribution from joint venture	500	0
Net cash provided by (used in) investing activities	99	(1,293)
Cash flows from financing activities:
Cash paid for purchase of our common stock	0	(48)
Proceeds from bank term loans	1,021	0
Cash paid for deferred financing costs	(45)	0
Repayments of long-term debt	(618)	(1,223)
Net cash provided by (used in) financing activities	358	(1,271)
Change in cash and equivalents	(417)	(874)
Cash and cash equivalents, beginning of period	1,523	4,979
Cash and cash equivalents, end of period	1,106	4,105
Supplemental schedule of significant noncash transactions:
Property, plant and equipment acquired via capital lease	0	1,200
Shares of common stock surrendered by employees related to payroll taxes on vested restricted stock awards	$ 34	$ 41