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Stockholders' Equity - Warrants (Details)
 3 Months Ended
Mar. 31, 2016
$ / shares
shares
Warrants Outstanding  
Outstanding at the beginning of the period (in shares) | shares 14,250
Exercised (in shares) | shares 0
Canceled/forfeited (in shares) | shares (7,500)
Expired (in shares) | shares 0
Outstanding at the end of the period (in shares) | shares 6,750
Exercisable at period end (in shares) | shares 0
Weighted Average Exercise Price During Period  
Outstanding at the beginning of the period (dollars per share) | $ / shares $ 4.30
Exercised (dollars per share) | $ / shares 0.00
Canceled/forfeited (dollars per share) | $ / shares 4.30
Expired (dollars per share) | $ / shares 0.00
Outstanding at the end of the period (dollars per share) | $ / shares $ 4.30
Exercisable at period end (dollars per share) | $ / shares $ 0.00