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Shareholders' Equity (Tables)
3 Months Ended
Mar. 31, 2017
Equity [Abstract]  
Summary of Stock Option Activity
The following table summarizes stock option activity for the Company during the three months ended March 31, 2017:
 
Options
 
Weighted
Average
Exercise
Price
 
Weighted
Average
Remaining
Contractual
Term
 
Aggregate
Intrinsic
Value
Outstanding December 31, 2016
162,665

 
$
43.11

 

 

Granted

 
$

 

 

Exercised

 
$

 

 

Forfeited or expired
(6,250
)
 
$
40.80

 

 

Outstanding March 31, 2017
156,415

 
$
43.21

 
6.3

 
$

 
 
 
 
 
 
 
 
Vested at March 31, 2017
105,445

 
$
53.20

 
5.5

 
$

Reconciliation of Warrant Liability
The following reconciliation of the beginning and ending balances for all warrant liabilities measured at fair market value on a recurring basis during the three months ended March 31, 2017 and 2016:
 
March 31, 2017
 
March 31, 2016
Balance – January 1
$
573,560

 
$
1,958,775

Issuance of warrants and effect of repricing

 
14,636

Exercise of warrants

 

(Gain) or loss included in earnings
(102,776
)
 
(481,011
)
Balance – March 31
$
470,784

 
$
1,492,400