Shareholders' Equity (Details)
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Common shares outstanding at beginning of the period 4,084,400 4,115,903
Forfeiture of restricted shares (2,023) (41,778)
Common shares outstanding at end of the period 4,096,774 4,094,459
Nonvested Restricted Stock [Member]
   
Issuance of non-vested restricted shares 13,627 20,000
Common Stock [Member]
   
Issuance of common stock 770 334