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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Cash flows from operating activities:    
Net Income $ 1,738 $ 334
Adjustments to reconcile net income to net cash (used in) provided by operating activities:    
Deferred income tax provision 255 89
Equity income from foreign joint ventures' operations (1,458) (771)
Depreciation and amortization 186 220
Stock based compensation 197 104
Provision for bad debt 110 30
Allowance for obsolete inventory 8 8
Gain on sale of property, plant and equipment   (13)
Deferred compensation costs 33 1
Change in operating assets and liabilities:    
Accounts receivable (1,793) 1,444
Income taxes payable 8  
Inventories 422 (25)
Costs and estimated earnings in excess of billings on uncompleted contracts (371) (1,146)
Accounts payable and accrued liabilities 276 (184)
Billings in excess of costs and estimated earnings on uncompleted contracts 1,761 (818)
Prepaid expenses and other current assets (113) (2)
Net cash (used in) provided by operating activities 1,259 (729)
Cash flows from investing activities:    
Purchases of property, plant and equipment and other assets (277) (151)
Proceeds from disposal of property, plant and equipment   13
Investment (in) foreign joint ventures' operations      
Purchase of intangible assets    (104)
Net cash provided from (used in) investing activities (277) (242)
Cash flows from financing activities:    
Proceeds from issuance of common stock 6 7
Proceeds from sale of preferred stock and warrants      
Treasury stock purchase, in accordance with the employee stock incentive plan (147) (92)
Preferred stock cash dividend (75)  
Capital lease obligation payment (40) (40)
Net cash (used in) provided by financing activities (256) (125)
Net increase (decrease) in cash and cash equivalents 726 (1,096)
Cash and cash equivalents, beginning of period 4,477 3,749
Cash and cash equivalents, end of quarter 5,203 2,653
Supplemental disclosures of cash flow information:    
Interest paid 7 50
Income taxes paid 1  
Non-cash investing and financing activities:    
Common stock issuance to acquire intangible assets   $ 219