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Stock Based Compensation Narrative (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 24 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Nov. 30, 2014 | Dec. 31, 2012 | Jul. 31, 2012 | Sep. 30, 2011 | Nov. 30, 2010 | Sep. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Jan. 08, 2017 | Jun. 30, 2016 | Jan. 08, 2015 | Dec. 08, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |  |  |  |  | $ 10.20 | $ 10.25 | $ 13.13 |  |  |  |  | $ 10.01 | $ 10.00 |  |  |  |
Restricted shares granted during period |  |  |  | 27,000 |  |  |  |  |  |  |  |  |  |  |  |  |
restricted stock issued shares DIRECTORS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,000 |
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000 |
remaining shares to be vested |  |  |  |  |  |  |  |  |  |  |  |  |  | two-thirds |  |  |
restricted stock issued shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000 |
restricted stock issued shares DIRECTORS unvested |  |  |  |  |  |  |  |  | 10,000 |  |  |  |  |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonvested balance (in shares) |  |  |  |  |  |  |  |  | 147,331 |  |  |  |  |  |  |  |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options |  |  |  |  |  |  |  |  | $ 1,720,520 |  |  |  |  |  |  |  |
2010 Plan [Member] | Stock Compensation Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock and options authorized under plan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000
2010 Plan [Member] | Employee Stock Option [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term |  |  |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |
Options outstanding |  |  |  |  |  |  |  |  | 325,000 |  |  |  |  |  | 405,000 |  |
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price |  |  |  |  |  |  |  |  |  | $ 0.00 |  |  |  |  |  |  |
Weighted-average exercise price (USD per share) |  |  |  |  |  |  |  |  |  | $ 11.20 |  |  |  |  |  |  |
2010 Plan [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted shares granted during period | 100,000 | 40,000 | 85,000 |  |  |  |  |  |  |  | 95,000 |  |  |  |  |  |
Directors and Officers [Member] | 2010 Plan [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted shares granted during period |  |  |  |  |  |  |  | 70,429 |  |  |  |  |  |  |  |  |
Owner of Avalon Development Corporation [Member] | 2010 Plan [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted shares granted during period |  |  |  |  |  |  |  | 23,477 |  |  |  |  |  |  |  |  |
November 2014 grant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonvested balance (in shares) |  |  |  |  |  |  |  |  | 9,000 |  |  |  |  |  |  |  |
September 2015 grant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonvested balance (in shares) |  |  |  |  |  |  |  |  | 28,332 |  |  |  |  |  |  |  |

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