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Stock-Based Incentive Plan - Unvested Restricted Stock (Details)
6 Months Ended
Dec. 31, 2016
USD ($)
$ / shares
shares
Restricted Stock, Service-Based  
Number of Restricted Shares  
Granted (in shares) | shares 86,563
Unvested at the end of the period (in shares) | shares 221,956
Weighted Average Grant-Date Fair Value  
Granted (in dollars per share) | $ / shares $ 7.02
Unvested at the end of the period (in dollars per share) | $ / shares $ 7.12
Restricted Stock, Performance-Based  
Number of Restricted Shares  
Granted (in shares) | shares 54,475
Unvested at the end of the period (in shares) | shares 54,475
Weighted Average Grant-Date Fair Value  
Granted (in dollars per share) | $ / shares $ 5.67
Unvested at the end of the period (in dollars per share) | $ / shares $ 5.67
Restricted Stock, Market-Based  
Number of Restricted Shares  
Granted (in shares) | shares 54,475
Unvested at the end of the period (in shares) | shares 119,227
Weighted Average Grant-Date Fair Value  
Granted (in dollars per share) | $ / shares $ 5.44
Unvested at the end of the period (in dollars per share) | $ / shares $ 4.97
Restricted Stock  
Number of Restricted Shares  
Unvested at the beginning of the period (in shares) | shares 406,848
Vested (in shares) | shares (206,703)
Unvested at the end of the period (in shares) | shares 395,658
Weighted Average Grant-Date Fair Value  
Unvested at the beginning of the period (in dollars per share) | $ / shares $ 6.74
Vested (in dollars per share) | $ / shares 7.11
Unvested at the end of the period (in dollars per share) | $ / shares $ 6.28
Additional disclosures of restricted stock  
Unrecognized stock compensation expense related to Restricted Stock | $ $ 2,194,326
Weighted average remaining service period over which unrecognized compensation cost is expected to be recognized 2 years 4 months 24 days
Contingent Restricted Stock, Performance-Based  
Number of Restricted Shares  
Granted (in shares) | shares 27,237
Unvested at the end of the period (in shares) | shares 39,403
Weighted Average Grant-Date Fair Value  
Granted (in dollars per share) | $ / shares $ 5.67
Unvested at the end of the period (in dollars per share) | $ / shares $ 7.02
Additional disclosures of restricted stock  
Potential future compensation expense | $ $ 276,702
Contingent Restricted Stock, Market-Based  
Number of Restricted Shares  
Granted (in shares) | shares 27,237
Unvested at the end of the period (in shares) | shares 73,867
Weighted Average Grant-Date Fair Value  
Granted (in dollars per share) | $ / shares $ 3.42
Unvested at the end of the period (in dollars per share) | $ / shares $ 3.37
Contingent Restricted Stock  
Number of Restricted Shares  
Unvested at the beginning of the period (in shares) | shares 91,172
Vested (in shares) | shares (32,376)
Unvested at the end of the period (in shares) | shares 113,270
Weighted Average Grant-Date Fair Value  
Unvested at the beginning of the period (in dollars per share) | $ / shares $ 5.21
Vested (in dollars per share) | $ / shares 6.09
Unvested at the end of the period (in dollars per share) | $ / shares $ 4.64
Additional disclosures of restricted stock  
Unrecognized stock compensation expense related to Restricted Stock | $ $ 167,781 [1]
Weighted average remaining service period over which unrecognized compensation cost is expected to be recognized 2 years 5 months 9 days
[1] Excludes $276,702 of potential future compensation expense for contingent performance-based awards for which vesting is not considered probable at this time for accounting purposes.