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Nature of Operations and Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Summary of uncompleted contracts    
Cost incurred on uncompleted contracts $ 69 $ 14
Estimated earnings 78 61
Revenue recognized 147 75
Less: billings to date (219) (32)
Total Unbilled Revenue $ (72) $ 43