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Stock Option and Purchase Plans (Details Textual) (USD $)
 12 Months Ended 1 Months Ended 12 Months Ended 1 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Apr. 30, 2012
Restricted Stock [Member]
Dec. 31, 2012
Restricted Stock [Member]
Dec. 31, 2011
Restricted Stock [Member]
Apr. 30, 2012
Stock Options [Member]
Apr. 30, 2012
Stock Options [Member]
Apr. 30, 2011
Stock Options [Member]
Dec. 31, 2012
Stock Options [Member]
Dec. 31, 2012
2004 Equity Plan [Member]
Dec. 31, 2012
2004 Equity Plan [Member]
Maximum [Member]
Dec. 31, 2012
2004 Equity Plan [Member]
Minimum [Member]
Dec. 31, 2012
2004 Equity Plan [Member]
Stock Options [Member]
Dec. 31, 2012
2010 Sypris Omnibus Plan [Member]
Dec. 31, 2012
2010 Sypris Omnibus Plan [Member]
Stock Options [Member]
Stock Option and Purchase Plans (Textual) [Abstract]                              
Common stock reserved for issuance                         3,000,000   3,655,088
Stock option restrictions, lapse period                   after one, two, three or four years for certain grants or for certain other shares, one-third of the restriction is removed after three, five and seven years       after three years  
Stock option grants, life and vesting period description                   Stock option grants under the 2004 Equity Plan include both six and ten year lives along with graded vesting over three, four and five years of service.       five year life along with vesting after three years of service  
Life of stock option grants               5 years     10 years 6 years   5 years  
Award vesting period     3 years         3 years           3 years  
Restricted stock awards, granted 320,500   305,000     116,000 200,000                
Award vesting date     Jan. 01, 2015                        
Shares received into treasury in conjunction with vesting of restricted stock 34,848 113,234   126,651 91,713                    
Shares received into treasury in conjunction with vesting of restricted stock, price per share       $ 4.05 $ 4.74                    
Weighted average grant date fair value, per share $ 2.56 $ 2.69                          
Unrecognized compensation cost, expected weighted-average period for recognition                 1 year 1 month 6 days            
Stock Option and Purchase Plans (Additional Textual) [Abstract]                              
Aggregate number of shares available for future grant 2,536,939 2,854,024                          
Fair value of shares vested $ 1,476,000 $ 1,146,000                          
Exercise of stock options, Shares 110,100 14,185                          
Intrinsic value of options exercised 672,000 3,000                          
Unrecognized compensation cost 2,339,000                            
Fair value of option shares vested $ 1,004,000 $ 43,000