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Stockholders' Equity (Details) (USD $)
 1 Months Ended 6 Months Ended
Sep. 30, 2013
Dec. 31, 2013
Stockholders' Equity    
Common stock issued upon exercise of incentive stock options (IPO) (in shares)   1,008,657
Cash proceeds on exercise of incentive stock options   $ 2,141,500
Common stock issued upon cashless exercises of nonqualified stock options (NQSOs) and incentive warrants (in shares)   2,622,723
Number of shares owned by option holders that were swapped   50,956
Weighted average cost of swapped shares (in dollars per share)   $ 12.14
Increase of additional paid-in capital   4,200,000
Increase of additional paid-in capital due to stock compensation amortization   1,066,225 [1]
Increase of additional paid-in capital due to exercise of stock options and warrants   2,800,000
Windfall tax benefit   386,975
Decrease of additional paid-in capital   2,800,000
Retirement of treasury stock (in shares)   801,889
Cost of treasury stock retired   1,000,000
Purchase of treasury stock (in shares)   144,462
Purchase cost of treasury stock (in dollars per share)   $ 12.09
Purchase cost of treasury stock   1,746,407
Number of shares retired in satisfaction of payroll tax liabilities from exercises and restricted stock vestings   93,506
Number of shares received from option holders in swap through cashless stock option exercises   50,956
Number of common shares outstanding reduced   946,351
Cash dividends to common stockholders   3,205,135
Recovery of Stockholder Short Swing Profit    
Recovery of short swing profits $ 6,850  
[1] Includes $376,365 of stock compensation reflected in restructuring charges.